Zobrazeno 1 - 10
of 274
pro vyhledávání: '"Ortmann, Frank"'
Autor:
Panhans, Michel, Ortmann, Frank
We establish a universal theory to understand quasiparticle Hall effects and transverse charge-carrier transport in organic semiconductors. The simulations are applied to organic crystals inspired by rubrene and cover multiple transport regimes. This
Externí odkaz:
http://arxiv.org/abs/2408.10412
Autor:
Wang, Shu-Jen, Hutsch, Sebastian, Talnack, Felix, Deconinck, Marielle, Huang, Shiyu, Zhang, Zongbao, Kleemann, Hans, Vaynzof, Yana, Mannsfeld, Stefan C. B., Ortmann, Frank, Leo, Karl
Blending of semiconductors for controlling the energy levels (band structure engineering) is an important technique, in particular, for optoelectronic applications. The underlying physics is the delocalized Bloch states, which average over the potent
Externí odkaz:
http://arxiv.org/abs/2404.13086
Autor:
Merkel, Konrad, Ortmann, Frank
We present a theoretical method for calculating optical absorption spectra based on maximally localized Wannier functions, which is suitable for large periodic systems. For this purpose, we calculate the exciton Hamiltonian, which determines the Beth
Externí odkaz:
http://arxiv.org/abs/2309.06834
Autor:
Richter, Marcus, Schellhammer, Karl Sebastian, Machata, Peter, Cuniberti, Gianaurelio, Popov, Alexey, Ortmann, Frank, Berger, Reinhard, Müllen, Klaus, Feng, Xinliang
By the combination of 9a-azaphenalene and a perpendicularly oriented acene, we have synthesized three derivatives of a series of novel, fully-conjugated nitrogen-containing polycyclic aromatic hydrocarbons (PAHs), namely [7,8]naphtho[2′,3′:1,2]in
Externí odkaz:
https://tud.qucosa.de/id/qucosa%3A36567
https://tud.qucosa.de/api/qucosa%3A36567/attachment/ATT-0/
https://tud.qucosa.de/api/qucosa%3A36567/attachment/ATT-0/
Autor:
Panhans, Michel, Ortmann, Frank
Publikováno v:
Phys. Rev. Lett. 127, 016601 (2021)
We derive the general Kubo formula in a form that solely utilizes the time evolution of displacement operators. The derivation is based on the decomposition of the linear response function into its time symmetric and time anti-symmetric part. We rela
Externí odkaz:
http://arxiv.org/abs/2104.08608
Autor:
Bairagi, Kaushik, Zuccatti, Elisabetta, Calavalle, Francesco, Catalano, Sara, Parui, Subir, Llopis, Roger, Ortmann, Frank, Casanova, Fèlix, Hueso, Luis E.
Publikováno v:
J. Mater. Chem. C, 2019,7, 10389-10393 J. Mater. Chem. C, 2019,7, 10389-10393 J. Mater. Chem. C, 2019,7, 10389-10393
The realization of both p-type and n-type operations in a single organic field effect transistor (OFET) is critical for simplifying the design of complex organic circuits. Typically, only p-type or n-type operation is realized in an OFET, while the r
Externí odkaz:
http://arxiv.org/abs/2005.02672
Akademický článek
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Akademický článek
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Autor:
Fan, Zheyong, Garcia, Jose Hugo, Cummings, Aron W., Barrios-Vargas, Jose Eduardo, Panhans, Michel, Harju, Ari, Ortmann, Frank, Roche, Stephan
In recent years, predictive computational modeling has become a cornerstone for the study of fundamental electronic, optical, and thermal properties in complex forms of condensed matter, including Dirac and topological materials. The simulation of qu
Externí odkaz:
http://arxiv.org/abs/1811.07387