Zobrazeno 1 - 10
of 175
pro vyhledávání: '"Wolfram Heimbrodt"'
Autor:
Martin Koch, Nico Hofeditz, Katharina Broch, Julian Hausch, Marina Gerhard, Christoph P. Theurer, Wolfram Heimbrodt
Publikováno v:
The Journal of Physical Chemistry C. 125:17194-17201
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7856b6a779b0050dba94f7ae48537454
https://doi.org/10.1021/acs.jpcc.1c04183
https://doi.org/10.1021/acs.jpcc.1c04183
Autor:
Raffael Ruess, Derck Schlettwein, Nico Hofeditz, Tsukasa Yoshida, Wolfram Heimbrodt, Andreas Ringleb
Publikováno v:
Physical Chemistry Chemical Physics. 23:8393-8402
Dye-sensitized solar cells (DSSCs) based on ZnO photoanodes have, despite extensive research, lagged behind cells based on TiO2, which is due to generally lower open-circuit voltages VOC and fill factors. Here, DSSCs have been prepared using Mg-doped
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7497b1270161b7f55d34a52b3074c769
https://doi.org/10.1039/d1cp00179e
https://doi.org/10.1039/d1cp00179e
Autor:
Lorenz Maximilian Schneider, Rui Guo, Young Duck Kim, Jan Kuhnert, Dylan Renaud, Sina Lippert, Obafunso Ajayi, Saleh Firoozabadi, James Hone, Quyet Ngo, Wolfram Heimbrodt, Arash Rahimi-Iman
Publikováno v:
Nano-Structures & Nano-Objects. 15:84-97
We report on a comprehensive experimental analysis of the influence of the environment on the optical properties of monolayer WSe2. Different dielectric-environmental configurations with hBN as buffer and encapsulant were studied at room temperature
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5c2686541dd0842f381cc9f86291a2b
https://doi.org/10.1016/j.nanoso.2017.08.009
https://doi.org/10.1016/j.nanoso.2017.08.009
Autor:
Saeideh Edalati-Boostan, Marc-Uwe Halbich, James Hone, Lorenz Maximilian Schneider, Xing Lin, Sina Lippert, Wolfram Heimbrodt, Eui-Hyeok Yang, Obafunso Ajayi, Jan Kuhnert, Oday Mazin Abdulmunem, Arash Rahimi-Iman, Young Duck Kim, Kyungnam Kang, Dylan Renaud, Khaleel I. Hassoon
Publikováno v:
Semiconductors. 52:565-571
2D-materials, especially transition metal dichalcogenides (TMDs) have drawn a lot of attention due to their remarkable characteristics rendering them a promising candidate for optical applications. While the basic properties are understood up to now,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fae9f84aa926827da0fcd0b3bebbc2b7
https://doi.org/10.1134/s1063782618050275
https://doi.org/10.1134/s1063782618050275
Autor:
Xiaotian Wang, Kyungnam Kang, Wolfram Heimbrodt, Lorenz Maximilian Schneider, Eui-Hyeok Yang, Simon Schmitt, Lars Meckbach, Stephan W. Koch, Jan Kuhnert, U. Huttner, Tineke Stroucken, Arash Rahimi-Iman, Shichen Fu
Publikováno v:
2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
The coupling of the spin and valley degrees of freedom and valley-selective optical selection rules in transition-metal dichalcogenides (TMDCs) monolayers (ML) has been a major research topic in recent years [1]. In contrast, valleytronic properties
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22e0ecb780c97e30f276909dfe21fde6
https://doi.org/10.1109/cleoe-eqec.2019.8873371
https://doi.org/10.1109/cleoe-eqec.2019.8873371
Correlation of optical properties and interface morphology in type-II semiconductor heterostructures
Autor:
Luise Rost, Kerstin Volz, Wolfgang Stolz, S. Nau, C. Fuchs, Martin Koch, P. Kükelhan, S. Gies, Wolfram Heimbrodt, Markus Stein
(Ga,In)As/GaAs/Ga(As,Sb) and (Ga,In)As/GaAs/Ga(N,As) type-II double quantum well heterostructures have been grown by metal-organic vapor phase epitaxy. A growth interruption procedure was used to intentionally modify the morphology of the internal in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c48281f41c8da2047e41e82f5d087eab
https://publica.fraunhofer.de/handle/publica/255381
https://publica.fraunhofer.de/handle/publica/255381
Autor:
Luise Rost, Wolfgang Stolz, Milan Maradiya, Jannik Lehr, Wolfram Heimbrodt, Florian Fillsack, Lukas Hellweg
Publikováno v:
Journal of Luminescence. 231:117817
The influence of growth interruption on the luminescence properties of the Ga(As,Sb)/GaAs interface have been studied by continous wave and time resolved photoluminescence spectrosocopy in type II Ga(As,Sb)/GaAs/(Ga,In)As double quantum well structur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9390db1d0c13f8851eacd588aa9eb06
https://doi.org/10.1016/j.jlumin.2020.117817
https://doi.org/10.1016/j.jlumin.2020.117817
Autor:
M. Wiemer, Kerstin Volz, M. Zimprich, Arash Rahimi-Iman, Martin Koch, Wolfgang Stolz, S. Reinhard, R. Woscholski, K. Jandieri, Mohammad Khaled Shakfa, S. Gies, S. D. Baranovskii, Wolfram Heimbrodt
Publikováno v:
Thin Solid Films. 613:55-58
Time-resolved photoluminescence (TR-PL) spectroscopy has been used to study the impact of rapid thermal annealing (RTA) on the optical properties and carrier dynamics in Ga(NAsP) multiple quantum well heterostructures (MQWHs) grown on silicon substra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ab5d9eb1ae4d227c5fda65c79e228cd
https://doi.org/10.1016/j.tsf.2015.10.062
https://doi.org/10.1016/j.tsf.2015.10.062
Autor:
M. Wiemer, K. Jandieri, Kerstin Volz, Wolfgang Stolz, P. Ludewig, S. D. Baranovskii, Martin Koch, Mohammad Khaled Shakfa, R. Woscholski, S. Gies, T. Wegele, Wolfram Heimbrodt
Publikováno v:
Superlattices and Microstructures. 93:67-72
Time-resolved photoluminescence (TR-PL) measurements have been performed in Ga(NAsP)/(BGa)(AsP) multi-quantum well heterostructures (MQWHs) with different well thicknesses. The studied structures have been pseudomorphically grown on Si substrates by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3507e0a18f59ff35403e79c13f7d6f4f
https://doi.org/10.1016/j.spmi.2016.03.002
https://doi.org/10.1016/j.spmi.2016.03.002
Autor:
Benjamin Heidelmeier, Andreas Dipl.-Chem. Jacob, Ingo Meyenburg, Christian Prinzisky, Fabian G. Schröder, Wolfram Heimbrodt, Jörg Sundermeyer
Publikováno v:
European Journal of Organic Chemistry. 2016:756-767
A number of anthraquinone imines (1–3, 5–8) and an anthrone diamine (4) have been synthesized by the condensation of 9,9-dimethoxy-10-anthrone derivatives (13, 18, and 23) with different primary aromatic amines and, in the case of benzoacridinone
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efc58a4021c7d96edadbb4394faf05cc
https://doi.org/10.1002/ejoc.201501309
https://doi.org/10.1002/ejoc.201501309