Research project funded by the DFG for additional 3 years

[20.11.2015]  With a total volume of 320.000 EURO, the German Research Society supports the research project „Optical and electrical control of magnetism and magneto-optical functionality in semiconductor nanocrystals and nanocrystal devices“ for another 3 years. Goal of the project is to work out a fundamental understanding of magnetically doped semiconductor nanocrystals and to develop schemes for achieving electrical and optical control of magneto-optical functionality. Unique nanomaterials will be prepared by our key partners, Prof. Hyeon, U Seoul, and Prof. Gamelin, U Washington.

© ACS Nano

Collaboration between Uni-DuE and University of Washington awarded with CENIDE Best Paper Award

[17.11.2015] At the CENIDE (Center for Nanointegration Duisburg Essen) general meeting on 10th November 2015 the publication "Valence-Band Mixing Effects in the Upper-Excited-State Magneto-Optical Responses of Colloidal Mn2+-Doped CdSe Quantum Dots" was awarded with the CENIDE Best Paper Award 2015. In collaboration with Prof. Daniel Gamelin´s group (University of Washington, Seattle, USA), Rachel Fainblat and Franziska Muckel (Lehrstuhl für Werkstoffe der Elektrotechnik – Prof. Gerd Bacher) achieved the first experimental observation of a long known effect: the valence band mixing in quantum dots.

© Nano Letters - Bradshaw et al. Nano Lett., 2015, 15 (2), pp 1315–1323

Dr. rer. nat. Rachel Fainblat awarded with DAAD P.R.I.M.E.-fellowship for postdoc stay in USA

[0429.10.2015] In 2015, twenty-five recently graduated PhD students from diverse research fields were awarded under the Postdoctoral Researchers International Mobility Experience (P.R.I.M.E.) program from the German Academic Exchange Service (Deutscher Akademischer Austauschdienst - DAAD). Dr. rer. nat. Rachel Fainblat is one of the awarded fellows with her project entitled “Energy conversion in doped nanocrystals for solar concentrators and LEDs”.

Best poster award for ultrafast nanowire LED based on GaN

[30.09.2015] For his poster „Ultrafast GaN/GaInN nanowire array LED grown on Si(111) for short range optical data communication“, M.Sc. Wolf Quitsch was honored with the best poster award and a reward of 200 € on the young researchers symposium in the context of the theme-night “materials for photonics” in Essen.
In collaboration with his colleagues from the department for solid state electronics, M.Sc. Wolf Quitsch from the department for electronic materials and nanostructures is working on a novel device concept for communication on a short range via LEDs.
The results of the study can be found in Nano Letters 15, 2318 (2015).

© Journal of the American Chemical Society

Searching for the smallest (magnetically) doped semiconductor

[25.09.2015] Doping, i.e. the intentional incorporation of impurities in semiconductor host lattices, is the basis of electronic devices. In the effort towards a continuous device miniaturization, a major breakthrough was achieved by a collaboration between the University Duisburg Essen and the Seoul National University. Dr. Rachel Fainblat and M. Sc. Franziska Muckel (Lehrstuhl für Werkstoffe der Elektrotechnik, Prof. Gerd Bacher) developed together with M. Sc. Jiwoong Yang (Department of Materials Science and Engineering, Prof. Taeghwan Hyeon) magnetically doped semiconductor nanocrystals, which consist only of 26 atoms. These structures are the smallest doped semiconductors reported so far in the literature.