Zobrazeno 1 - 10
of 125
pro vyhledávání: '"Stephan, Buecheler"'
Autor:
Thomas Paul Weiss, Romain Carron, Max H. Wolter, Johannes Löckinger, Enrico Avancini, Susanne Siebentritt, Stephan Buecheler, Ayodhya N. Tiwari
Publikováno v:
Science and Technology of Advanced Materials, Vol 20, Iss 1, Pp 313-323 (2019)
Time-resolved photoluminescence (TRPL) is applied to determine an effective lifetime of minority charge carriers in semiconductors. Such effective lifetimes include recombination channels in the bulk as well as at the surfaces and interfaces of the d
Externí odkaz:
https://doaj.org/article/7c95c994ac9c4e2b9b0abd279befb94b
Autor:
Stefano Pisoni, Martin Stolterfoht, Johannes Löckinger, Thierry Moser, Yan Jiang, Pietro Caprioglio, Dieter Neher, Stephan Buecheler, Ayodhya N. Tiwari
Publikováno v:
Science and Technology of Advanced Materials, Vol 20, Iss 1, Pp 786-795 (2019)
The possibility to manufacture perovskite solar cells (PSCs) at low temperatures paves the way to flexible and lightweight photovoltaic (PV) devices manufactured via high-throughput roll-to-roll processes. In order to achieve higher power conversion
Externí odkaz:
https://doaj.org/article/f5767d04d6c043d8ab9b4b295792d7b8
Autor:
Thomas P. Weiss, Benjamin Bissig, Thomas Feurer, Romain Carron, Stephan Buecheler, Ayodhya N. Tiwari
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-13 (2019)
Abstract The knowledge of minority carrier lifetime of a semiconductor is important for the assessment of its quality and design of electronic devices. Time-resolved photoluminescence (TRPL) measurements offer the possibility to extract effective lif
Externí odkaz:
https://doaj.org/article/8f0e996071044b29b6f00ee7686f0bd8
Autor:
Thomas Feurer, Benjamin Bissig, Thomas P. Weiss, Romain Carron, Enrico Avancini, Johannes Löckinger, Stephan Buecheler, Ayodhya N. Tiwari
Publikováno v:
Science and Technology of Advanced Materials, Vol 19, Iss 1, Pp 263-270 (2018)
Multi-junction solar cells show the highest photovoltaic energy conversion efficiencies, but the current technologies based on wafers and epitaxial growth of multiple layers are very costly. Therefore, there is a high interest in realizing multi-junc
Externí odkaz:
https://doaj.org/article/4a0638fcd5674ed4aa9773fd8dd313d2
Autor:
Enrico Avancini, Debora Keller, Romain Carron, Yadira Arroyo-Rojas Dasilva, Rolf Erni, Agnieszka Priebe, Simone Di Napoli, Martina Carrisi, Giovanna Sozzi, Roberto Menozzi, Fan Fu, Stephan Buecheler, Ayodhya N. Tiwari
Publikováno v:
Science and Technology of Advanced Materials, Vol 19, Iss 1, Pp 871-882 (2018)
Structural defects such as voids and compositional inhomogeneities may affect the performance of Cu(In,Ga)Se2 (CIGS) solar cells. We analyzed the morphology and elemental distributions in co-evaporated CIGS thin films at the different stages of the C
Externí odkaz:
https://doaj.org/article/f484a08e9aa84819a78e079b3d60334f
Autor:
Martina Lingg, Annina Spescha, Stefan G. Haass, Romain Carron, Stephan Buecheler, Ayodhya N. Tiwari
Publikováno v:
Science and Technology of Advanced Materials, Vol 19, Iss 1, Pp 683-692 (2018)
The performance improvement of conventional CdTe solar cells is mainly limited by doping concentration and minority carrier life time. Alloying CdTe with an isovalent element changes its properties, for example its band gap and behaviour of dopants,
Externí odkaz:
https://doaj.org/article/aec48db831654d4e92e910abc5da59f4
Autor:
Romain Carron, Enrico Avancini, Thomas Feurer, Benjamin Bissig, Paolo A. Losio, Renato Figi, Claudia Schreiner, Melanie Bürki, Emilie Bourgeois, Zdenek Remes, Milos Nesladek, Stephan Buecheler, Ayodhya N. Tiwari
Publikováno v:
Science and Technology of Advanced Materials, Vol 19, Iss 1, Pp 396-410 (2018)
Cu(In,Ga)Se2 -based solar cells have reached efficiencies close to 23%. Further knowledge-driven improvements require accurate determination of the material properties. Here, we present refractive indices for all layers in Cu(In,Ga)Se2 solar cells wi
Externí odkaz:
https://doaj.org/article/ab7e9cc8e2d84dc78f6d6304652e923e
Autor:
Fan Fu, Stefano Pisoni, Thomas P. Weiss, Thomas Feurer, Aneliia Wäckerlin, Peter Fuchs, Shiro Nishiwaki, Lukas Zortea, Ayodhya N. Tiwari, Stephan Buecheler
Publikováno v:
Advanced Science, Vol 5, Iss 3, Pp n/a-n/a (2018)
Abstract Compositional grading has been widely exploited in highly efficient Cu(In,Ga)Se2, CdTe, GaAs, quantum dot solar cells, and this strategy has the potential to improve the performance of emerging perovskite solar cells. However, realizing and
Externí odkaz:
https://doaj.org/article/31a936a84244468a8e179939444d8715
Autor:
Max Hilaire Wolter, Romain Carron, Thomas Feurer, Susanne Siebentritt, Stephan Buecheler, Thomas Paul Weiss, Wolfram Witte, Shiro Nishiwaki, Philip L. Jackson, Enrico Avancini, Benjamin Bissig
Publikováno v:
Progress in Photovoltaics: Research and Applications
Autor:
Shih-Chi Yang, Quentin Jeangros, Stephan Buecheler, Stefano Pisoni, Fan Fu, Yan Jiang, Ayodhya N. Tiwari, Thierry Moser
Publikováno v:
Joule. 4:1087-1103
y High specific power, high stowed packing efficiency, low processing cost, and high tolerance against environmental threats (high energy and charged particle radiation) make perovskite solar cell (PSC) a promising candidate for power generation in s