Press Releases / Pressemitteilungen

Fluctuation-induced Distributed Resonances in Oscillatory Networks and Power Grids

Press Release - cfaed, 31 July, 2019

Published on Wed, 31 Jul 2019 in PRESS RELEASES

[Deutsche Version unter "read more"]

Scientists from the Center for Advancing Electronics Dresden (cfaed) at TU Dresden, together with partners from other German universities and research institutions, have investigated how highly complex dynamical systems react to external influences using the example of power grids. The results contribute to an understanding of the processes that take place, for example, during the feeding of weather-dependent and thus strongly fluctuating renewable energies into the power grids. However, they can be transferred to various types of dynamical networks. The study has been published in the journal "Science Advances" on 31 July, 2019.

Tuning the Energy Levels of Organic Semiconductors

Press Release from 04 July, 2019

Published on Thu, 04 Jul 2019 in PRESS RELEASES

[Deutsche Version unter "read more"]

Physicists from the Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and the Center for Advancing Electronics Dresden (cfaed) at the TU Dresden, together with researchers from Tübingen, Potsdam and Mainz were able to demonstrate how electronic energies in organic semiconductor films can be tuned by electrostatic forces. A diverse set of experiments supported by simulations were able to rationalize the effect of specific electrostatic forces exerted by the molecular building blocks on charge carriers. The study was published recently in Nature Communications.

Shell Increases Versatility of Nanowires

Laboratory experiments show that semiconductor nanowires can be tuned over wide energy ranges

Published on Wed, 26 Jun 2019 in PRESS RELEASES

Press release by Helmholtz Center Dresden Rossendorf (HZDR) of June 26, 2019

[Deutsche Version unter "read more"]

Nanowires promise to make LEDs more colorful and solar cells more efficient, in addition to speeding up computers. That is, provided that the tiny semiconductors convert electric energy into light, and vice versa, at the right wavelengths. A research team at Helmholtz-Zentrum Dresden-Rossendorf (HZDR) has managed to produce nanowires with operating wavelengths that can be freely selected over a wide range – simply by altering the shell structure. Fine-tuned nanowires could take on several roles in an optoelectronic component, without having to resort to different materials. That would make the components more powerful, more cost-effective, and easier to integrate, as the team reports in Nature Communications (doi: 10.1038/s41467-019-10654-7).

Marcus Regime in Organic Devices: Interfacial Charge Transfer Mechanism Verified

Published on Thu, 09 May 2019 in PRESS RELEASES

[Deutsche Version unter "read more"]

Physicists from the Research Cluster Center for Advancing Electronics Dresden (cfaed) of the TU Dresden, together with researchers from Spain, Belgium and Germany, were able to show in a study how electrons behave in their injection into organic semiconductor films. Simulations and experiments clearly identified different transport regimes. The study was published now in Nature Communications.

Organic Solar Cells and Light-emitting Diodes United: TUD Physicists Enlighten Us

Published on Fri, 05 Apr 2019 in PRESS RELEASES

(Press release from TU Dresden; Deutsche Version unter "read more")

In the past 25 years of research on organic semiconductors, it was thought that organic solar cells and organic light-emitting diodes (OLEDs) could not be combined in a single device. A team of physicists headed by Prof. Koen Vandewal from Technische Universität Dresden has now succeeded in manufacturing an organic solar cell that simultaneously functions as an efficient OLED. Their findings were recently published in the internationally renowned journal Nature Materials.