Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Guy Brammertz"'
Autor:
Kristi Timmo, Bart Vermang, Mati Danilson, Guy Brammertz, Maarja Grossberg, Maris Pilvet, Jüri Krustok, Katri Muska, Marit Kauk-Kuusik, R. Josepson
Publikováno v:
ACS Applied Energy Materials. 4:12374-12382
Relatively fast achievements in the kesterite solar cell technology have been made over the last decade, but the experimental efficiency is still ∼13%. One proposed reason is an inappropriate band alignment with Cu2ZnSnS4 (CZTS) and CdS that result
Autor:
Marc Meuris, Gizem Birant, Guy Brammertz, Thierry Kohl, Dilara Gokcen Buldu, Jozef Poortmans, Bart Vermang, Jessica de Wild
Publikováno v:
IEEE Journal of Photovoltaics
In the present contribution, we have measured and simulated room temperature bias- and frequency-dependent capacitances of thin-film solar cell devices. The results of both the simulations and experimental measurements are represented as 2-D contour
Autor:
Nicolas Barreau, Léo Choubrac, Sergiu Levcenko, Bart Vermang, Xeniya Kozina, Marcus Bär, Regan G. Wilks, Roberto Félix, Guy Brammertz, Sylvie Harel, Ludovic Arzel, Marc Meuris
Publikováno v:
ACS Applied Energy Materials
ACS Applied Energy Materials, ACS, 2020, 3 (6), pp.5830-5839. ⟨10.1021/acsaem.0c00763⟩
ACS Applied Energy Materials, ACS, 2020, 3 (6), pp.5830-5839. ⟨10.1021/acsaem.0c00763⟩
Current state-of-the-art Cu2ZnSn(S,Se)(4) kesterite solar cells are limited by low open-circuit voltages (V-OC). In order to evaluate to what extent the substitution of Sn by Ge is able to result in higher V oc values, this article focuses on Cu2ZnGe
Autor:
Guy Brammertz, Souhaib Oueslati, Valdek Mikli, Maarja Grossberg, Bart Vermang, Dieter Meissner, Christian Neubauer, Marit Kauk-Kuusik, Jüri Krustok
Publikováno v:
Solar Energy. 198:586-595
The open circuit voltage (VOC) deficit of Cu2ZnSn(S,Se)4 (CZTSSe) kesterite solar cells is higher than that of the closely related Cu(InGa)Se2 solar cells. One of the most promising strategies to overcome the large VOC deficit of kesterite solar cell
Autor:
Jef Poortmans, Marc Meuris, Jessica de Wild, David Mate Parragh, Bart Vermang, Dilara Gokcen Buldu, Gizem Birant, Guy Brammertz, Thierry Kohl
Publikováno v:
IEEE Journal of Photovoltaics
Thin (640 mV were achieved after the KF treatment. From SCAPS simulations and temperature dependent current voltage-measurements, it is concluded that the V-oc of these cells are limited by backcontact surface recombination and, thus, further improve
Publikováno v:
Energies, Vol 14, Iss 4737, p 4737 (2021)
Energies
Volume 14
Issue 16
Energies
Volume 14
Issue 16
Pure sulfide CIGS solar cells are interesting candidates for standalone solar cells or top cells in a tandem configuration. To understand the limits and improve the power conversion efficiency of these devices, a comprehensive approach aimed at compo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ab126b0b04a2f9bd34d88f8341d8949
https://lirias.kuleuven.be/handle/20.500.12942/696888
https://lirias.kuleuven.be/handle/20.500.12942/696888
Publikováno v:
Energies
Volume 14
Issue 14
Energies, Vol 14, Iss 4268, p 4268 (2021)
Volume 14
Issue 14
Energies, Vol 14, Iss 4268, p 4268 (2021)
Ultrathin Cu(In,Ga)Se-2 (CIGS) absorber layers of 550 nm were grown on Ag/AlOx stacks. The addition of the stack resulted in solar cells with improved fill factor, open circuit voltage and short circuit current density. The efficiency was increased f
Autor:
Nelson Y. Dzade, Thomas E. Davies, Dilara Gokcen Buldu, Guy Brammertz, Sachin R. Rondiya, Russell W. Cross, Bart Vermang, Sandesh Jadkar, Hirendra N. Ghosh, Yogesh Jadhav
Cu2ZnGeSe4 (CZGSe) is a promising earth-abundant and non-toxic semiconductor material for large-scale thin-film solar cell applications. Herein, we have employed a joint computational and experimental approach to characterize and assess the structura
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c0ba2d157cd2863193d483141db94c9
Autor:
Jef Poortmans, Marcel Simor, Thierry Kohl, Bart Vermang, Thomas Schnabel, Dilara Gokcen Buldu, Gizem Birant, Guy Brammertz, Jessica de Wild, Marc Meuris
Publikováno v:
ACS Applied Energy Materials
A simplified Cu(In, Ga)Se-2 (CIGS) solar cell structure based on a 500 nm thin CIGS layer is presented. The absorber layers are grown with a single-stage coevaporation process, and various KF post-deposition treatments (KF-PDT) are performed. The KF-
Autor:
Ludovic Arzel, Marc Meuris, Christophe Cardinaud, Léo Choubrac, Roberto Félix, Regan G. Wilks, Marcus Bär, Patrice Bras, P. J. Bolt, Xeniya Kozina, Bart Vermang, Claudia Hartmann, Nicolas Barreau, Yufeng Zhang, Samira Khelifi, D. Gerlach, Evelyn Handick, Yi Ren, Joke Hadermann, Maria Batuk, Toyohiro Chikyow, Sylvie Harel, Thomas Schnabel, Johan Lauwaert, Eric Jaremalm, Erik Ahlswede, Guy Brammertz, Joop van Deelen, Asahiko Matsuda, Sheng Yang, Shigenori Ueda
Publikováno v:
SUSTAINABLE ENERGY & FUELS
Sustainable Energy & Fuels
Sustainable Energy & Fuels, Royal Society of Chemistry, 2019, 3 (9), pp.2246-2259. ⟨10.1039/c9se00266a⟩
Sustainable Energy & Fuels
Sustainable Energy & Fuels, Royal Society of Chemistry, 2019, 3 (9), pp.2246-2259. ⟨10.1039/c9se00266a⟩
This work reports on developments in the field of wide band gap Cu2ZnXY4 (with X = Sn, Si or Ge, and Y = S, Se) kesterite thin film solar cells. An overview on recent developments and the current understanding of wide band gap kesterite absorber laye