Zobrazeno 1 - 10
of 126
pro vyhledávání: '"Stähler, Julia"'
Autor:
Gierster, Lukas, Turkina, Olga, Deinert, Jan-Christoph, Vempati, Sesha, Baeta, Elsie, Garmshausen, Yves, Hecht, Stefan, Draxl, Claudia, Stähler, Julia
Organic/inorganic hybrid systems offer great potential for novel solar cell design combining the tunability of organic chromophore absorption properties with high charge carrier mobilities of inorganic semiconductors. However, often such material com
Externí odkaz:
http://arxiv.org/abs/2307.05257
Publikováno v:
J. Phys. Chem C, 2023
In order to develop a better understanding of electrochemical $\mathrm{O_2}$ reduction in non-aqueous solvents, we apply two-photon photoelectron spectroscopy to probe the dynamics of $\mathrm{O_2}$ reduction at a DMSO/Cu(111) model battery interface
Externí odkaz:
http://arxiv.org/abs/2210.13528
Publikováno v:
Progress in Surface Science, 2022, 100679
An excitonic insulator phase is expected to arise from the spontaneous formation of electron-hole pairs (excitons) in semiconductors where the exciton binding energy exceeds the size of the electronic band gap. At low temperature, these ground state
Externí odkaz:
http://arxiv.org/abs/2208.14574
We unravel the influence of quasiparticle screening in the non-equilibrium exciton dynamics of monolayer WS$_2$. We report pump photon energy-dependent exciton blue and red-shifts from time-resolved-reflectance contrast measurements. Based on a pheno
Externí odkaz:
http://arxiv.org/abs/2204.02125
Publikováno v:
Nat. Commun. 12, 978 (2021)
Band bending at semiconductor surfaces induced by chemical doping or electric fields can create metallic surfaces with properties not found in the bulk, such as high electron mobility, magnetism or superconductivity. Optical generation of such metall
Externí odkaz:
http://arxiv.org/abs/2005.13424
Autor:
Vempati, Sesha, Bogner, Lea, Richter, Clemens, Deinert, Jan-Christoph, Foglia, Laura, Gierster, Lukas, Stähler, Julia
The conversion of optical and electrical energy in novel materials is key to modern optoelectronic and light-harvesting applications. Here, we investigate the equilibration dynamics of photoexcited 2,7-bis(biphenyl-4-yl)-2,7-ditertbutyl-9,9-spirobiuo
Externí odkaz:
http://arxiv.org/abs/1911.04333
Autor:
Bertram, Cord, Auburger, Philipp, Bockstedte, Michel, Stähler, Julia, Bovensiepen, Uwe, Morgenstern, Karina
Publikováno v:
J. Phys. Chem. Lett. 2020, 11, 1310-1316
We determine the impact of electron solvation on D$_2$O structures adsorbed on Cu(111) with low temperature scanning tunneling microscopy, two-photon photoemission, and ab initio theory. UV photons generating solvated electrons lead not only to trans
Externí odkaz:
http://arxiv.org/abs/1909.03844
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Autor:
Foglia, Laura, Vempati, Sesha, Bonkano, Boubacar Tanda, Gierster, Lukas, Wolf, Martin, Sadofev, Sergey, Stähler, Julia
Due to its wide band gap and high carrier mobility, ZnO is an attractive material for light-harvesting and optoelectronic applications. Its functional efficiency, however, is strongly affected by defect-related in-gap states that open up extrinsic de
Externí odkaz:
http://arxiv.org/abs/1811.04499
Inhibition of the photoinduced structural phase transition in the excitonic insulator Ta$_2$NiSe$_5$
Autor:
Mor, Selene, Herzog, Marc, Noack, Johannes, Katayama, Naoyuki, Nohara, Minoru, Takagi, Hide, Trunschke, Annette, Mizokawa, Takashi, Monney, Claude, Stähler, Julia
Femtosecond time-resolved mid-infrared reflectivity is used to investigate the electron and phonon dynamics occurring at the direct band gap of the excitonic insulator Ta$_2$NiSe$_5$ below the critical temperature of its structural phase transition.
Externí odkaz:
http://arxiv.org/abs/1804.00882