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News Archiv 2020
YIN meets at the HIUYIN members from the Helmholtz Institute Ulm presented their research

The Helmholtz Institute Ulm (HIU) is one of the worldwide leading research institutions in the field of electrochemical energy storage. It houses the reseach plattform CELEST, the Excellence Cluster Post Lithium Storage (POLIS) and is also the workplace of three YIN members: Roswitha Zeis, Dominic Bresser, and Helge Stein. On September 21, these three opened their labs for YIN and introduced group leaders from Karlsruhe to their research activities. HIU has been jointly founded in 2011 by the KIT, the University of Ulm, the Center for Solar Energy and Hydrogen Research Baden-Württemberg (ZSW), and the German Aerospace Center (DLR).

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Aroniabeeren als StärkeersatzChokeberries as a high-fibre starch substitute in cereals

Fibre-rich substitute products could significantly reduce the starch content in breakfast cereals and, thus, contribute to a healthier end product. "In our pilot study in cooperation with the Max Rubner Institute in Karlsruhe, chokeberries have proven suitable as starch substitutes and are now being tested under real processing conditions," says Azad Emin, project leader at KIT. "Using the extrusion process, we can shape the press residue of the berries into crunchy cereals and add health-promoting ingredients without affecting the taste and stucture of the product. The results are published in the journal:

Food Research International
EPICUR_logoEU Commission now funds research within the European University EPICUR

KIT coordinates the “EPICUR Research” project which will integrate research activities and interaction with society into the “European University” EPICUR (European Partnership for Innovative Campus Unifying Regions). The aim is to initiate and implement novel research alliances between the eight EPICUR partner universities from six countries. YIN members participated in the internal review process of the application and will be on the EPICouncil acting as a sounding board. EPICUR research complements the teaching and learning activities that started in 2019 with the goal to create an inter-university campus.

Press info
Urban trees in KarlsruheParticipative study: How do you value urban trees in Karlsruhe?

Trees and urban forests mitigate heat-stress, purify air, and provide multiple other ecosystem services. Rapid urbanization, however, poses challenges to the maintenance of a sustainable green cover and healthy population of plants inside or near cities. “In the BMBF-funded project Green Lung, we assess the ecological, social, and economic resilience of urban tree species and forests by applying trans- and interdisciplinary approaches in the regions of Karlsruhe and Rheinstetten”, says project leader Somidh Saha. As a resident, your participation in this survey will contribute to the preservation and sustainable design of trees and forests.

Survey on urban trees
Die in 27Plus6 anvisierte Zellstruktur – eine Perowskit/Silizium-Tandemsolarzelle mit drei Anschlüssen (3T). Der blaue Anteil des Sonnenlichts wird durch die obere Perowskitsolarzelle und der rote Teil durch die untere 3T-Siliziumsolarzelle genutztBMWi project on perovskite silicon tandem solar cells

Solar cells with higher efficiencies under real conditions would sustainably advance the energy turnaround. In the "27plus6" project, researchers now combine silicon and perovskite cells with the aim of achieving efficiencies up to 33 percent. "In order to significantly increase the energy yield, we also develop solar cells with three contacts that are more robust against the solar spectrum, which changes during the course of the day," says Ulrich W. Paetzold. The project is coordinated by the Institute for Solar Energy Research Hameln/Emmerthal and is funded by the Federal Ministry of Economics and Energy (BMWi) with 3.2 million euros.

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teifgefrorene FruchtstückeBMWi-AiF/FEI project on the potential for damage to fruits

Whether in yoghurt or jam - visible fruit pieces stand for quality and gentle processing. In the project "Potential for damage to fruits", researchers at KIT and TU Berlin, therefore, investigate how the shape, color, and firmness of fruit pieces can be preserved during industrial processing. Special attention is paid to pipe systems where the pieces are transported in liquid. Here, damage mostly occurs in curves, branches, or in case of cross-sectional changes of the pipe elements. The Federal Ministry of Economics and Energy (BMWi) funds the project until 2022.

Project overview
Nano MaterialACS Nano: Eigenschaften neuer Funktionsmaterialien vorhersagen

Mit Methoden der Künstlichen Intelligenz (KI) lassen sich die Eigenschaften neuartiger Funktionsmaterialien schnell und kostengünstig analysieren. „Wir ersetzen die aufwändige Bestimmung elektronischer Materialeigenschaften durch vergleichsweise einfach zu messende optische Eigenschaften“, erläutert Pascal Friederich. Aus diesen Messergebnissen könnte die gewünschte Materialeigenschaft mit hoher Genauigkeit vorausgesagt werden. Gemeinsam mit Forschern der Universitäten Toronto und Madrid hat er organische elektronische Nano-Materialien mit neuronalen Netzen untersucht. ACS Nano berichtet.

ACS Nano
AufforstungWaldsterben: Aktionsnetzwerk für nachhaltige Forstwirtschaft

Der Klimawandel bringt Dürren und Waldbrände. Aktuell bedürfen mehr als zwei Milliarden Hektar der Wiederaufforstung. In vielen Ländern Asiens, Afrikas und Südamerikas fehlen jedoch Kenntnisse, wie das nachhaltig gelingen kann. Im europäischen COST-Aktionsnetzwerk wollen Forscher aus 27 Ländern daher erprobte Techniken und Richtlinien zur klimaangepassten Wiederaufforstung über eine Datenbank frei zugänglich machen. Somidh Saha ist mit seiner Nachwuchsgruppe „Sylvanus“ beteiligt und entwickelt Konzepte, um Wälder in unterschiedlichen Gebieten kostengünstig wiederherzustellen.

Aktionsnetzwerk cost
Helmholtz Junior Research Group "Fixed-Point Methods for Numerics at Exascale"Helmholtz group is part of the US Exascale Computing Project

As part of the Exascale Computing Project consortium, the Helmholtz Young Investigator Group "Fixed-Point Methods for Numerics at Exascale" receives funding of more than a million euro until 2022.The team headed by Hartwig Anzt will focus on the development of numerical methods and production-ready codes that can operate in lower arithmetic precision while still producing results of high precision. The consortium aims to provide powerful Exascale supercomputers and develop a sustainable software ecosystem for scientific simulations. It is part of the US National Strategic Computing Initiative which focuses on maximizing the benefits of High Performance Computing.

Mehle auf InsektenbasisAlternative protein source: flours from insect powder

Larvae of mealworms are rich in protein and have a CO2 balance twice as good as beef. Processed as powder and used as ingredient for traditional foods like bread, it is conceivable that they may be introduced on the German market, so Azad Emin. His team uses an extrusion process similar to that used for pasta. This can be specifically adapted so that insect flours, despite their higher protein and fat content, do not differ noticeably in taste, baking properties, and texture from conventional baking flours. At the same time, the process deactivates enzymes, removes residues, and can promote improved digestibility.

KIT Press info
forest fire1,5 Mio. for research to prevent forest fires

Persisting droughts increases the risk of forest fires. Identifying and containing endangered areas as well as sustainably reforesting burnt forests is the aim of the interdisciplinary project "Enhancing the ecological, silvicultural, and technical knowledge on forest fires". To that, Somidh Saha investigates i.a. the regenerative capacity of different tree species. Together with Nadine Rühr, he will test which seeds still germinate after real and simulated fires in a high-tech greenhouse. The Agency for Renewable Resources funds the project consortium with 1.5 million euros overall.

FNR project
Virtual- und Augmented-Reality-Technologien für die LehreVirtual collaboration labs for teaching and research

Students of natural and engineering sciences will soon be able to learn measurement and simulation techniques in virtual collaboration labs. Platforms with 3D visualization provide a cost-effective and intuitively operable alternative to practical lab work. “At the same time, we best prepare the students for an increasingly digitalized work environment and make interdisciplinary cooperation possible,” says Mathias J. Krause. Funded by the MWK, he works together with researchers at KIT and the Mannheim University of Applied Sciences on further developing technologies to make them applicable for digital teaching and research.

Lattice Boltzmann RG
Kathrin ValeriusProfessorship and alumni status for Kathrin Valerius

Kathrin Valerius has secured a Helmholtz professorship at KIT in the line "Funding of first-time appointments of excellent female scientists (W2/W3)". Congratulations! Since becoming a YIN member in 2014, she has put a lot of time, commitment, and heart into shaping the network and striving for common goals of young academic leaders. For the last two and a half years, she was one of the representative speakers advocating YIN interests at many KIT committees. We are very happy to stay in touch with her as a YIN alumna. At KIT, she will continue the hunt for the neutrino mass and look into the nature of dark matter. Big thanks and all the best for the future!

YIN InsightYIN Insight 2018/2019 with facts, figures, and faces

In our annual journal YIN Insight 2018/2019, the excellence status stands in the focus of the greetings by the Minister of Science, Research, and the Arts Baden-Württemberg Theresia Bauer and is addressed by the lead article, the Hot Topic. Moreover, we report about the latest highlights from our research and from the YIN advanced training program. Of course, we also present the traditional Facts and Figures section: With 9.6 million euros of subsequent funding raised, 289 weekly semester hours taught, 238 theses supervised, and 194 papers published, the academic year 2018/19 was a huge success for YIN members.

YIN Insight magazine
Crystallographic orientation data plotted with TD color coding.Nat.Comm.: Verschleiß bei Reibung besser verstehen

Trotz Schmiermitteln erzeugt jede Reibung Energieverlust und Materialverschleiß. Um die Prozesse auf atomarer Ebene besser zu beobachten, hat das Team von Christian Greiner eine Zwillingsgrenze eingesetzt, an der sich die Kristall-Orientierung des verwendeten Kupfers ändert: Die Atomschichten sind anders ausgerichtet, weisen aber identische Material-eigenschaften auf. Bei Reibung verschieben sich die obersten Atomlagen und die Zwillings-Grenze wird geknickt. Unterm Elektronenmikroskop konnte das Team drei bisher unbekannte atomare Prozesse ausmachen, die langfristig in bessere Modelle zur Berechnung von Reibung einfließen.

Nature Communications
druckbare LichtsensorenAdv.Mat. farbempfindliche druckbare Lichtsensoren

Telekommunikation in Lichtgeschwindigkeit? Die Entwicklung farbempfindlicher druckbarer Lichtsensoren rückt die optische Datenübertragung in greifbare Nähe. Farben entsprechen den unterschiedlichen Wellenlängen des Lichts und können, im Gegensatz zum einfachen Lichtimpulsen, als Code zur Übermittlung komplexer Informationen dienen. Ein Forscherteam um Gerado Hernandez-Sosa hat nun eine neue Materialzusammensetzung entwickelt, bei der organische Halbleiter auf unterschiedlich Wellenlängen reagieren und die sich zudem auf flexible Träger aufdrucken lässt. Das Fachmagazin Advanced Materials berichtet.

Presseinfo
Board of DGJMit Deutscher Gesellschaft Juniorprofessur im Bund

YIN und die Deutschen Gesellschaft Juniorprofessur (DGJ) wollen künftig intensiver zusammenarbeiten. Im Mittelpunkt stehen Austausch und Kooperationen zur Interessensvertretung des wissenschaftlichen Nachwuchses sowie die Förderung alternativer Karrierewege zur Professur. Viele YIN-Mitglieder kommen von anderen Universitäten oder werden dorthin berufen. Daher freuen wir uns besonders, uns über die DGJ einer bundesweiten Peer-Community anschließen können und Erfahrungen über die Grenzen der Bundesländer hinweg auszutauschen. YIN-Mitglieder können der DGJ fortan kostenlos beitreten.

Info DGJ
DebatesKIT Senate approved guest seat for YIN representative

For the first time, a represen-tative of the independent junior research group leaders and junior professors at KIT has been welcomed as permanent guest into the KIT Senate. With this decision, the senators give credit to the strategic importance of this target group. As newly elected representative YIN speaker, Hartwig Anzt will size the chance to increase the consideration of junior staff and add their practical knowledge and experiences to the senators' debates. YIN Deputies are Karsten Woll and Katharina Scherf. The KIT Senate issues an opinion on the structural and development plan of KIT as well as on the drafts of the economic and the finance plan.

News Archive 2019
Adolf-Martesn-Preis für Christian GreinerAdolf-Martens-Prize goes to Christian Greiner

Christian Greiner receives one of the three Adolf-Martens-Prizes 2018, presented by the president of the German Federal Institute for Materials Research and Testing (BAM). With the award, the Adolf-Martens Fond honors outstanding research of young scientists in material sciences and testing, analytical chemistry, safety technology and associated fields. Christian Greiner leads the Emmy-Noether group “Materials Tribology” and, in 2017, obtained a Consolidator Grant from the European Research Council (ERC) for his project “Deformation Mechanisms are the Key to Understanding and Tayloring Tribological Behaviour”.

press info BAM
Hartwig Anzt, UT/KITFaster algorithms through multiprecision format

Multiprecision algorithms mix different precision formats to get faster computation run-time – currently saving up to 20%. While preserving double-precision quality in the output, intermediate calculations can run on a lower precision format. In memory bound algorithms, where the data transfer volume slows down the computation, more-compact precision formats can reduce the pressure on the memory bandwidth. Hence, decoupling of the arithmetic from the memory format is essential, says Hartwig Anzt in a Let’s Talk Exascale podcast. As multiprecision algorithms are not limited to special-function units, a strong focus lies on interoperability.

KATRIN SpectrometerPhys.Rev.Lett. cover: new limit for neutrino mass

The international Karlsruhe Tritium Neutrino Experiment (KATRIN) has improved the upper limit of the neutrino mass almost by the factor of 2 and made it on the cover of the Physical Review Letters. Based on a purely kinematic method, KATRIN has narrowed down the absolute mass of neutrinos to less than 1.1 electron-volt (eV) at 90% confidence within only four weeks. After 1000 days of data taking, an even higher sensitivity of 0.2 eV will be reached. YIN speaker Kathrin Valerius coordinates the analysis activities at KIT. Overall 20 institutions from 7 countries are part of the KATRIN collaboration.

Physical Review Letters
YIN speaker among 40 under 40 in science and societyYIN speaker amidst "Young Elite - top 40 under 40"

The business journal CAPITAL chose YIN speaker Kathrin Valerius as one of Germany’s “Young Elite 2019” in the category science and society. Each year the honors go to the top 40 under 40 from economy, politics, science, and society. All these young talents have the potential to influence and shape the future of Germany. On November 21st, they came together at the “Young Elite Summit” in Berlin to exchange ideas beyond their usual sphere of action and set new impulses for society. Among the honorees from the previous years who spoke at the summit was Nora Szech, professor for political economy at KIT (pictured left).

Top 40 in Science & Society
Innovationspreis NEO2019 geht an HoloMedInnovationspreis NEO2019 für KI-Projekt HoloMed

„HoloMed“ unterstützt Chirurgen im Operationssaal: Das intelligente System erstellt anhand von Aufnahmen der Computertomografie und Magnetresonanztomografie ein Modell tiefliegender Körperstrukturen. Über eine Augmented Reality-Brille zeigt HoloMed dem Arzt Führungskanal und Zielbereich der chirurgischen Instrumente präzise an. Bei der Entwicklung haben sich Björn Hein, Franziska Mathis-Ullrich und Christian Kunz auf die Punktion am Gehirn fokusiert. Mit dem Innovationspreis NEO fördert die TechnologieRegion Karlsruhe GmbH jedes Jahr zukunftsweisende Technologien.

Presseinfo
Geometry-optimized DFT model of the ground-state of CB8⊃MPCP featuring an ideal packing coefficient (PC) of 57%.Smart sensors for personalized medication

Swiftly measuring and adapting the concentration of active medical substances within the body – Frank Biedermann and his team present a simple, inexpensive method for the Alzheimer medication Memantin in the journal Chemical Science. There, a molecule serves as synthetic receptor dye and “hides” in a second, barrel-shaped molecule. When the active agent displaces the dye, the latter can be determined in medically relevant concentrations in the blood serum outside the barrel molecule. The scientists also issued a guideline on how to transfer the method to other medications and dyes.

Chemical Science
Blog_GinkgoWorkingTeamsoftware contributions counting towards h-index

Offering full reproducibility and open source code, software contributions can be more beneficial to the scientific community than classical publications. However, they do not count towards impact metrics like the H-index. To instigate a change, software contributions could become acceptable as a full-value conference submission to be included in the proceedings after an additional independent review. In the blog Better Scientific Software, Hartwig Anzt argues that a community-based assessment would reduce the workload of the independent reviewer and ensure a very high quality.

better scientific software
Nobel Laureate at HIUYIN members encounter Nobel Laureate '19 in Ulm

When being announced 2019 Nobel Laureate in Chemistry, Stanley Whittingham was at the conference Advanced Lithium Batteries for Automobile Applications at the Helmholtz Institute Ulm. With him were about 380 scientists from 30 nations – among them 3 YIN members specializing in battery research: Dominic Bresser, Julia Maibach, and Roswitha Zeis. Whittingham developed the first functional lithium battery. He shares the honors for developing lithium-ion batteries with John Goodenough, who made them more powerful, and Akira Yoshino, who opened the way for commercial viability.

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Anatomisches Modell des linken Vorhofs einer 70-jährigen Patientin.Mit Herzsimulation Risiken individuell abschätzen

Eine neue Methode erlaubt es, das Risiko an einer Herz-Rhythmusstörung zu erkranken, individuell abzuschätzen. Digitale Simulationen des Herzens identifizieren sämtliche Pfade, entlang derer atypische, kreisende elektrische Erregungen auftreten können. „Unsere Modelle des Herzens beziehen anatomische, elektro-physiologische und pharma-kologische Kriterien mit ein“, sagt Gruppenleiter Axel Loewe. Selbst die Wirkung von Therapien wie Katheterverödung oder Medikamenten lässt sich so vorab individuell einschätzen und maßschneidern.

Presseinformation
liquid glass11 Oct: YIN Day and YIN Lecture by Prof. B. Rapp

The 11th YIN anniversary started with a workshop on Digital Self-Marketing, followed by a working lunch with poster session. One Highlight was the YIN Lecture by YIN alumnus Bastian Rapp. Now professor at the University of Freiburg, he was recently awarded one of the prestigious Consolidator Grants of the European Research Council ERC. He spoke about Advanced Materials for Additive Manufacturing and 3D-printing in glass - for which he is particularly known since his Nature publication in 2017. An informal get-together afterwards encouraged networking.

KATRINNew limit for Neutrino mass is less than 1 eV

Neutrinos and their small non-zero mass play a key role in the evolution of large-scale cosmic structures as well as in the world of elementary particles, where they point to new physics beyond known theories. The upper limit of their absolute mass has now been narrowed down by the initial results of the international Karlsruhe Tritium Neutrino Experiment (KATRIN) to less than 1 electron-volt (eV) at 90% confidence. YIN speaker Kathrin Valerius coordinates the KATRIN analysis activities at KIT. Overall 20 institutions from 7 countries are part of the collaboration.

press info
Wege zur ProfessurNachwuchspakt: 6 further Tenure-Track-Profs at KIT

In the second run, 532 tenure track professorships went to 57 German universities - thereof 6 to KIT. Therewith, the Federal Government and the States have assigned the 1,000 positions announced in the Early Career Research Pact which are to lead to newly established professorships for life. To accelerate the change towards a tenure track culture, KIT plans to replace about 50 full professorships becoming vacant in the next 15 years with tenure track professors. The tenure track concepts stands for more reliability, clarity, and transparency. Since 2006, KIT has set up about 15 tenure track professorships.

press info
Perowskit-CIGS-Tandem-SolarmodelBMWi fördert Forschung zu Tandemsolarmodulen

„Wir entwickeln hocheffiziente Dünnschicht-Tandem-Solarmodule mit einem Wirkungsgrad oberhalb von 30 Prozent“, sagt Ulrich Paetzold, Projektpartner am KIT. Dies soll mittels Kombination zweier lichtaktiver Schichten gelingen. Das Bundesministerium für Wirtschaft und Energie fördert das Verbundprojekt Capitano mit 5,2 Mio. Euro – 2,1 Mio. gehen ans KIT. Partner sind das Zentrum für Sonnenenergie- und Wasserstoff-Forschung BW als Koordinator und das Unternehmen NICE Solar Energy, das die Produktion im Industrie-Maßstab sowie die Kosten bemessen wird.

Presseinfo
Photoelektronenspektroskopiencomms: Charakterisierung von Elektrolytlösungen

Reaktionen an den Grenzflächen zwischen Elektrolytflüssigkeit und Elektroden entscheiden mit über Kapazität und Lebensdauer von Lithium-Ionen-Batterien. Hier bildet sich eine Schicht, die als Elektrodenschutz wirken kann, aber auch Ladung verbraucht und zu Kapazitätsverlusten führt. "Mit schwedischen Kollegen haben wir erstmals Lösemittel und Elektrolytlösung mittels Photoelektronen-Spektroskopie untersucht und dabei die flüssige Phase über längere Zeit aufrechterhalten", so Julia Maibach. Maßgebend war der stabilisierende Umgebungsdruck des Lösemittels in Gasform.

nature communications
Electron beam evaporation of NiOx films.Adv.En.Mat: Förderschicht optimiert Solarzelle

Energieeffizient, stabil, skalierbar und dazu kostengünstig – eine neuartige Lochleiterschicht für Perowskit-Solarzellen macht es möglich. Das verwendete Nickeloxid hält im Gegensatz zu üblichen organischen Materialien Temperaturen von über 70°C aus und lässt sich mit gängigen Druckverfahren per Tintenstrahl auch großflächig auftragen. Die dabei erzielten Wirkungsgrade erreichen bis zu 18,5 Prozent. „Wir arbeiten gezielt daran, die Perowskit-Photovoltaik in die Fabrik zu bringen“, so Gruppenleiter Ulrich Paetzold.
SWR Aktuell berichtet ab Minute 07:00.

Advanced Energy Materials
Jubel nach der Entscheidung: Das KIT ist Exzellenzuniversität!University of Excellence with perspective

Excellent research, dialog with society, and reliable academic careers are the main aspects with which KIT successfully asserted itself in the funding line “university of excellence” in the excellence strategy of the federal and the state governments. YIN members were actively involved with the application process and the on-site appraisal. Junior research group leaders will benefit from a KIT-wide tenure track system, from amplified participation, as well as an extended qualification, support, and cooperation program. The excellence commission chose eleven out of 19 applicant universities.

Presseinfo
Science Walk Strickland69. Nobelpreisträgertagung in Lindau mit Anna Böhmer

Auf der 69. Lindauer Nobelpreisträgertagung war Anna Böhmer eine von 580 ausgewählten Nachwuchs-Wissenschaftlern aus 89 Ländern. Im Jahr der Physik diskutierten 39 Nobelpreisträger über die Themen Kosmologie, Laserphysik und Gravitations-wellen: „Zu meinen Highlights zählten der Science-Walk mit Donna Strickland (2018), die Lebensgeschichte von Claude Cohen Tannoudji (1997) sowie ein Blick hinter die Kulissen der Reform des internationalen Systems der physikalischen Einheiten mit William Philipps (1997) und Klaus von Klitzig (1985),“ so die Helmholtz-Nachwuchsgruppenleiterin.  

www.lindau-nobel.org
YIN candidatesYIN members up for KIT Senate election on July 18

We want to bring the experience and perspective of junior researchers into the KIT-Senate and, thus, participate in shaping the future at KIT. Please, support the candidacy of junior research group leaders in the election on July 18th with your vote! As YIN members, Hartwig Anzt (l.) and Karsten Woll (r.) stand for plannable career paths and transparent communication on every level; strengthened collaboration between the large-scale research sector and the university sector; Internationalization and diversity; Work-life balance as well as the compatibility of family and career.

KIT Senate election
doi: 10.1029/2018MS001592Wolken beeinflussen Jet-Streams im Klimawandel

Jet-Streams geben die Zugbahnen außertropischer Stürme vor und bestimmen damit das regionale Klima und Wettergeschehen maßgeblich. Der Klimawandel wird die Position und Intensität der Jet-Streams verändern und so auch die Häufigkeit starker Stürme außertropischen Ursprungs. Wie die BMBF-Nachwuchsgruppe „Wolken und Sturmzugbahnen“ um Aiko Voigt nun herausfand, hängt die Reaktion der Jet-Streams auf den Klimawandel zu einem Großteil von Wolken ab: Ein bis zwei Drittel der polwärtigen Verschiebung sowie die Verstärkung im Nordatlantik und im südlichen Ozean gehen auf Wolken zurück.

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HAnzt and KWollTwo YIN members elected for the Convention at KIT

YIN members Hartwig Anzt (l.) and Karsten Woll (r.) are part of the newly elected Convention for academic and scientific employees at KIT. As a representative organ, the Conventions bundles opinions and concerns, seeks dialog with the management at KIT, and makes recommendations. YIN acknowledges the Steinbuch Centre for Computing and the Institute for Applied Materials for trusting junior research group leaders to represent them in the Convention. They will also speak for the minority of young investigators at KIT working on temporary contracts.

Convention at KIT
Gabriel Rau erfasst am Brunnen Daten über die Eigenschaften des Untergrunds. Die Erkenntnisse können die nachhaltige Nutzung von Grundwasserressourcen ermöglichen. (Foto: Ian Acworth)Rev.o.Geophy.: Effiziente Grundwassermessung

Weltweit fallen die Grundwasserpegel und die Qualität verschlechtert sich. Um Grundwasserressourcen kostengünstig und flächen- deckend zu untersuchen, hat Gabriel Rau gemeinsam mit australischen Kollegen eine neue Methode entwickelt: Ein Drucksensor erfasst gezeiten- abhängigen Schwankungen des Grundwasserpegels, denn die sich ändernde Gravitation wirkt auch im Boden. Anhand der Messungen berechnen die Forscher etwa Porösität, hydraulische Leitfähigkeit und Kompressibilität des Untergrunds. Auf klassische Pumpversuche und angelegte Brunnen können sie verzichten.

Reviews of Geophysics
Perowskit-TandemsolarzellenAdv.En.Mat: Perowskit für hocheffiziente Solarzellen

Perowskit-Tandem-Solarzellen versprechen effiziente Wirkungsgrade oberhalb von 35 Prozent. Dies entspricht einem Anstieg um 10 Prozent gegenüber marktüblichen Silizium-Solarzellen. Die größte Herausforderung besteht darin, metallorganische Perowskit-Materialien mit passgenauem Absorptionsspektrum herzustellen: Ulrich W. Paetzold und sein Team entwickelten nun eine neuartige Kombination aus 2D- und 3D-Perowskit-Materialien mit stark gesteigerte Photospannung und einen Rekord-Wirkungsgrad im gewünschten Spektralbereich. Sie berichten im Fachmagazin Advaned Energy Materials.

KickOff YIGPrepProYIN at the kickoff of the YIG Preparation Program

In April 2019, YIN was among the first to welcome the candidates for the first round of the new Young Investigator Group Preparation Program at KIT. The idea is to provide funding and mentorship for outstanding postdocs to prepare a proposal for third-party funded junior research groups. As part of the CRYS council, YIN members were involved in the election process. They will also be among the mentors sharing their experience on how to successfully move on to the next career step. The program aims to increase the number of YIGs at KIT and also to attract more international and female scientists.

Granular aluminium as a superconducting material for high-impedance quantum circuitsNature.Mat.: Supraleiter Alu für Quantencomputer

Quantencomputer rechnen parallel und können große Datenmengen effizient verarbeiten. Ihre Informations- träger, die Qubits, nehmen nicht nur die Werte „0“ und „1“ an, sondern auch Überlagerungszustände dazwischen. Je mehr Qubites im Einsatz sind, desto schwieriger ist es, solche Quantenzustände aufrechtzuerhalten. Ein Forscherteam um Nachwuchsgruppenleiter Ioan Pop hat nun erstmals supraleitendes granulares Aluminium eingesetzt und eine damit Kohärenzzeit von bis zu 30 Mikrosekunden erreicht. Sie berichten in der Fachzeitschrift

Nature Materials
CELEST LogoLaunch of center f electro- chemical energy storage

The Center for Electrochemical Energy Storage Ulm & Karlsruhe CELEST reinforces joint research on high-performance and environmentally friendly energy storage systems. The activities will range from fundamental research toward the development of new battery technologies and technical applications with a particular focus on training early career researchers.The platform was co-founded by KIT, Ulm University, and the Center for Solar Energy and Hydrogen Research Baden-Württemberg. YIN members Julia Maibach and Dominic Bresser are among the (co-)spokespersons.

YIN Insight 2017/18YIN Insight 2017/18 online with new insights

100 Million euro initial third-party funding, 4,000 weekly teaching hours per semester, and 2,800 peer-reviewed articles – the 10-year statistic speaks for itself. The jubilee edition of the annual magazine YIN Insight further presents the hot topic “The what and why of young investigator programs” with interviews of six funding agencies. The scientific highlights include a recent ERC starting grant, the inauguration of the KATRIN neutrino experiment, and the excellence cluster POLiS. The YIN grants showcase exciting collabo- rations within the network.

YIN Insight 2017/18
Inkjet-Printed Perovskite PhotovoltaicsPerovskite photovoltaics – flexible in shape and color

In the project PRINTPERO, German and Greek researchers have teamed up with industrial partners to develop printed perovskite semi-conductors for building integrated photovoltaics. In ACS Applied Energy Materials, they report how a strong color perception can be achieved by inkjet-printing luminescent layers on top of the Perovskite solar cells at a relatively small (∼17%) reduction of power conversion efficiency. Gerardo Hernandez-Sosa and Ulrich Paetzold, both YIN members, added their know-how in electronic printing and photovoltaics respectively.

ACS Applied Energy Materials
HEiKATwo new HEiKA projects for YIN members in 2019

Frank Biedermann and Ulrich Paetzold each run a collaborative project supported by the Heidelberg Karlsruhe Strategic Partnership (HEiKA). Frank Biedermann and Prof. Thomas Kuner plan to apply artificial neurotransmitter receptors  for the monitoring of dopamine levels in neuronal tissues as well as in prefrontal cortex and basal nuclei of intact mice. Ulrich Paetzold and JProf. Yana Vaynzof aim to utilize the inkjet printing deposition method for fabrication of high yield and high performance perovskite solar cells. Since 2013, YIN members have been involved in 11 HEiKA projects.

HEiKA projects
.YIN record: Five new Professors in six months

Five YIN members have taken on new positions as professors within the last six months. Anne Koziolek has just been announced professor for software engineering at KIT. Petra Schwer is now professor for geometry at the University Magdeburg. Bastian Rapp relocated to Freiburg University starting as professor for Process Technology. Frank Schröder has become assistant professor at the University of Delaware. And Cornelia Lee-Thedieck was welcomed as professor for cell biology at the University Hannover. Congratulations! As of now, there are 50 professors among YIN alumni (49%).

YIN workshopsYIN Continuing Education 2019 with new workshop

"Negotiating with Confidence", "Challenging Leadership Situations", and "Mastering Conflicts" are three new topics addressed by the YIN continuing education program 2019 - now online. Scheduled are also well-established workshops like "Leadership Excellence" or "Appointment Procedures". YIN continuing education is specially tailored for early-stage academic leaders including leadership skills, project and personnel management, as well as personal development. Small sized groups and expert consultants stand for the high quality of the program.

Overview