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005     20240708133713.0
037 _ _ |a FZJ-2021-00093
100 1 _ |a Rau, Uwe
|0 P:(DE-Juel1)130285
|b 0
|e Corresponding author
|u fzj
111 2 _ |a 2020 MRS Virtual Spring/Fall Meeting & Exhibit
|c virtual
|d 2020-11-27 - 2020-12-04
|w USA
245 _ _ |a Photovoltaic performance of metal-halide perovskites – what is general and what is special?
260 _ _ |c 2020
336 7 _ |a Conference Paper
|0 33
|2 EndNote
336 7 _ |a Other
|2 DataCite
336 7 _ |a INPROCEEDINGS
|2 BibTeX
336 7 _ |a conferenceObject
|2 DRIVER
336 7 _ |a LECTURE_SPEECH
|2 ORCID
336 7 _ |a Conference Presentation
|b conf
|m conf
|0 PUB:(DE-HGF)6
|s 1610213814_28620
|2 PUB:(DE-HGF)
|x Invited
520 _ _ |a After many decades of photovoltaic research we would expect that there should be a common scientific understanding on the necessary ingredients to make almost perfect solar cells. However, the unprecedented success of metal-halide perovskites (MHPs) stimulated discussions on whether there could be a certain, yet non-established secret that distinguishes this material from others. The present contribution compares the performance of MHPs to other photovoltaic materials in terms of a general top-down approach. This direct comparison allows one to judge the strengths and weaknesses of different technologies but also gives some insight on the specific achievements, e.g. that, on the one hand, the radiative yield of MHPs is second only to the best GaAs solar cells, which implies open circuit voltages that come close to the thermodynamic limits. On the other hand the relative contribution of fill factor losses to the overall efficiency losses in MHPs is relatively large compared to most other technologies. Fill factor issues can generally originate from recombination or voltage losses during charge carrier collection, both aspects playing a role for MHPs. This issue will be discussed in terms of new, general models for the charge carrier separation in solar cells. Finally, the question will be addressed whether specific bulk properties of MHPs, like the presence of an indirect band gap, the density of states, or small phonon energies could be of importance for their favorable photovoltaic behavior.
536 _ _ |a 121 - Solar cells of the next generation (POF3-121)
|0 G:(DE-HGF)POF3-121
|c POF3-121
|f POF III
|x 0
909 C O |o oai:juser.fz-juelich.de:889170
|p VDB
910 1 _ |a Forschungszentrum Jülich
|0 I:(DE-588b)5008462-8
|k FZJ
|b 0
|6 P:(DE-Juel1)130285
913 1 _ |a DE-HGF
|b Energie
|l Erneuerbare Energien
|1 G:(DE-HGF)POF3-120
|0 G:(DE-HGF)POF3-121
|3 G:(DE-HGF)POF3
|2 G:(DE-HGF)POF3-100
|4 G:(DE-HGF)POF
|v Solar cells of the next generation
|x 0
914 1 _ |y 2020
920 _ _ |l yes
920 1 _ |0 I:(DE-Juel1)IEK-5-20101013
|k IEK-5
|l Photovoltaik
|x 0
980 _ _ |a conf
980 _ _ |a VDB
980 _ _ |a I:(DE-Juel1)IEK-5-20101013
980 _ _ |a UNRESTRICTED
981 _ _ |a I:(DE-Juel1)IMD-3-20101013


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Marc 21