Group Devi

Welcome!

Welcome to the homepage of the research Group “Inorganic Materials Chemistry” IMC of Prof. Dr. Anjana Devi. Our group focuses on the development, synthesis and evaluation of high-performance precursors for vapor phase deposition processes namely chemical vapor deposition (CVD), atomic layer deposition (ALD) and molecular layer deposition (MLD).
We collaborate with scientists from various disciplines (Physics, Chemistry and Engineers) and our goal is to develop nanostructured materials for different applications ranging from microelectronics, sensors, dielectrics, barrier coatings, spintronics, optics, catalysis etc.

NEWS:

New publication

10. January 2019

Low-Temperature Plasma-Enhanced Atomic Layer Deposition of Tin(IV) Oxide from a Functionalized Alkyl Precursor: Fabrication and Evaluation of SnO₂-Based Thin-Film Transistor Devices

L. Mai, D. Zanders, E. Subaşı, E. Ciftyurek, C. Hoppe, D. Rogalla, W. Gilbert, T. de los Arcos, K. Schierbaum, G. Grundmeier, C. Bock, A. Devi,
Appl. Mater. Interfaces, 2019, Accepted Manuscript, DOI: 10.1021/acsami.8b16443
Read the full article...

17. December 2018

Master graduation 2018

On friday, the 14^th of december the official graduation ceremony for the master studies in chemistry took place. We congratulate our three master students Jan-Lucas Wree, Nils Boysen and David Zanders (from left to right) to their academic degree “Master of Science – Chemistry”. All three will continue their work as PhD students in 2019. Keep up the good work!

New publication

14. December 2018

Luminescent Nd₂S₃ thin films: A new chemical vapour deposition route towards rare-earth sulphides

S. Cwik, S. M. J. Beer, M. Schmidt, N. C. Gerhardt, T. de los Arcos, D. Rogalla, J. Weßling, I. Giner, M. R. Hofmann, G. Grundmeier, A. D. Wieck, A. Devi
Dalton Trans., 2019, Accepted Manuscript, DOI: 10.1039/C8DT04317E
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New publication

13. December 2018

Electrical Performance and Stability of ZnO Thin-Film Transistors Incorporating Gadolinium Oxide High-k Dielectrics

D. K. Ngwashi, S. Paul, A. Devi, R. B. M. Cross,

Advances in Materials, 2018, 7(4), 137-143
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12. December 2018

nanoGE Fall Meeting

Our group, represented by Alexander Sadlo, Dennis Zywitzki and Anjana Devi, attended the nanoGE Fall Meeting that was held in Torremolinos (Spain) in October 2018. Within the framework of this conference, a symposium was held that covered the topics on the various aspects of (photo)electrochemical systems . This research topic is funded by the German Research Foundation within the Priority Research Programme Solar H₂ (DFG-SPP-1613).
Alexander and Dennis presented posters at this symposium describing their research work on new material systems for water splitting applications.
From left to right: Alexander Sadlo, Prof. Anjana Devi and Dennis Zywitzki.

New publication

13. November 2018

Atomic Layer Deposition of Molybdenum and Tungsten Oxide Thin Films Using Heteroleptic Imido-Amidinato precursors: Process Development, Film Characterization, and Gas Sensing Properties

M. Mattinen, J.-L. Wree, N. Stegmann, E. Ciftyurek, M. E. Achhab, P. J. King, K. Mizohata, J. Räisänen, K. D. Schierbaum, A. Devi, M. Ritala, M. Leskelä
Chem. Mater., 2018, 30, 23 , 8690-8701
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12. November 2018

Ultra-thin transparent silver films for solar cells

Recently, our research was featured on the RUB-homepage!
Excerpt:
A new fabrication process for transparent ultra-thin silver films has been developed by researchers at Ruhr-Universität Bochum and the University of Wuppertal. The material may help build highly efficient solar cells and light-emitting diodes. However, traditional chemical methods have not been able to produce ultra-thin and pure silver films. A team headed by Professor Anjana Devi and Nils Boysen from the Bochum-based research group Inorganic Materials Chemistry, in collaboration with the group of Professor Thomas Riedl from the Chair of Electronic Devices in Wuppertal, published an article on a new synthesis method in the journal “Angewandte Chemie”.
Check out the article here.

Featured paper:
An N-heterocyclic carbene based silver precursor for plasma-enhanced spatial atomic layer deposition of silver thin films at atmospheric pressure, N. Boysen, T. Hasselmann, S. Karle, D. Rogalla, D. Theirich, M. Winter, T. Riedl, A. Devi, Angew. Chem. Int. Ed., 2018, Accepted Author Manuscript, DOI: 10.1002/anie.201808586

Anjana Devi and Nils Boysen.

New publication

10. November 2018

Validation of a terminally amino functionalized tetra alkyl Sn(IV) precursor in metalorganic chemical vapor deposition of SnO₂ thin films: Study of film growth characteristics, optical and electrical properties

D. Zanders, E. Ciftyurek, C. Hoppe, A. Kostka, D. Rogalla, T. de los Arcos, G. Grundmeier, K. D. Schierbaum, A. Devi
Adv. Mater. Interfaces, 2019, 6, 1801540
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28. September 2018

Short Term Scientific Mission (STSM) Award for RUB and Aalto University

The two collaborating research groups from the Ruhr University Bochum – (IMC Group, Prof Anjana Devi) and Aalto University, Finland (Department of Chemistry and Materials Science, Prof. Maarit Karppinen) were awarded the best Short Term Scientific Mission (STSM) at the HERALD SUMMIT 2018. Lukas Mai (RUB, IMC) and Zivile Giedraityte (Aalto University) successfully performed a short research stay at the respective collaborating university.
The outcome of these studies were considered as a highly productive and constructive international cooperation and resulted in a publication (Link to publication). Lukas Mai presented these results at the HERALD SUMMIT 2018 conference and was awarded with the “Best HERALD Publication prize”.
Congratulations!
From left to right: Prof. Anjana Devi (RUB), Lukas Mai (RUB) and Prof Maarit Karppinen (Aalto University).

27. September 2018

HERALD SUMMIT 2018

The HERALD Summit 2018 (Hooking together European Research in Atomic Layer Deposition) took place in Braga, Portugal between 25-28^th September. Lukas Mai, Martin Wilken, Dennis Zywitzki, David Zanders and Anjana Devi successfully contributed talks (Lukas and David) and Posters (Martin and Dennis) in the research area of ALD and atomic level processing.
The Summit is part of the COST Action MP1402 (European Cooperation in Science and Technology) and shows the results of projects and research achievements within the european and international collaborations of HERALD.
From left to right: Lukas Mai, Martin Wilken, Anjana Devi, Dennis Zywitzki and David Zanders.