Zobrazeno 1 - 10
of 492
pro vyhledávání: '"Thomas Frauenheim"'
Autor:
Zhen Tong, Yatian Zhang, Alessandro Pecchia, ChiYung Yam, Liujiang Zhou, Traian Dumitrică, Thomas Frauenheim
Publikováno v:
Advanced Science, Vol 10, Iss 9, Pp n/a-n/a (2023)
Abstract Using a density functional theory‐based thermal transport model, which includes the effects of temperature (T)‐dependent potential energy surface, lattice thermal expansion, force constant renormalization, and higher‐order quartic phon
Externí odkaz:
https://doaj.org/article/caaf17d2128a4124a7be8facfa6f6873
Publikováno v:
Advanced Science, Vol 9, Iss 31, Pp n/a-n/a (2022)
Abstract Carrier multiplication (CM), multiexciton generation by absorbing a single photon, enables disruptive improvements in photovoltaic conversion efficiency. However, energy conservation constrains the threshold energy to at least twice bandgap
Externí odkaz:
https://doaj.org/article/7a92b0f35d1a4f51b64e508419213363
Autor:
Vladimir Lipp, Victor Tkachenko, Michal Stransky, Bálint Aradi, Thomas Frauenheim, Beata Ziaja
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-10 (2022)
Abstract Intense X-ray pulses from free-electron lasers can trigger ultrafast electronic, structural and magnetic transitions in solid materials, within a material volume which can be precisely shaped through adjustment of X-ray beam parameters. This
Externí odkaz:
https://doaj.org/article/b594d2e9608940c98c1a4e3054623561
Autor:
Ji-Hee Kim, Matthew R. Bergren, Jin Cheol Park, Subash Adhikari, Michael Lorke, Thomas Frauenheim, Duk-Hyun Choe, Beom Kim, Hyunyong Choi, Tom Gregorkiewicz, Young Hee Lee
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-9 (2019)
During carrier multiplication, high-energy free carriers in a given material relax by generation of additional electron-hole pairs. Here, the authors report evidence of carrier multiplication in multilayer MoTe2 and WSe2 films with up to 99% conversa
Externí odkaz:
https://doaj.org/article/0aa0200a81034578b05965a772f1e877
Publikováno v:
Advanced Science, Vol 8, Iss 18, Pp n/a-n/a (2021)
Abstract While graphene grain boundaries (GBs) are well characterized experimentally, their influence on transport properties is less understood. As revealed here, phononic thermal transport is vulnerable to GBs even when they are ultra‐narrow and
Externí odkaz:
https://doaj.org/article/8f41715f2fb245879869a98625f41954
Publikováno v:
npj Quantum Materials, Vol 2, Iss 1, Pp 1-6 (2017)
THERMOELECTRICS: Observe and control The presence of a quantum observer, acting locally in a thermoelectric nanodevice, is shown to be enough to change its heat and electronic transport path. In quantum mechanics the observation of a phenomenon can a
Externí odkaz:
https://doaj.org/article/6d4959c4bbf04123b14deb814354c7dd
Publikováno v:
International Journal of Molecular Sciences, Vol 4, Iss 10, Pp 537-547 (2003)
Abstract: The structure of two isomeric stacked dimers of Watson-Crick 9-methyladenine-1-methylthymine pairs was fully optimized using an approximate density functional theory (DFT) method augmented with an empirical dispersion interaction. The resul
Externí odkaz:
https://doaj.org/article/ebae61ecb10f4b289d5bb7c70fc7b90d
Autor:
Xiaoxi Zhang, Yunbin Hu, Carlos R. Lien-Medrano, Juan Li, Jinping Shi, Xinshun Qin, Zhenxing Liao, Yan Wang, Zishu Wang, Jiawei Li, Jianing Chen, Guangyu Zhang, Johannes V. Barth, Thomas Frauenheim, Willi Auwärter, Akimitsu Narita, Klaus Müllen, Carlos-Andres Palma
Publikováno v:
Journal of the American Chemical Society. 145:8757-8763
Publikováno v:
The Journal of Physical Chemistry Letters. 13:11059-11064
Publikováno v:
The Journal of Physical Chemistry Letters. 13:11051-11058
Although photocatalytic decomposition of NO (deNO) into N