This title appears in the Scientific Report :
2018
Please use the identifier:
http://dx.doi.org/10.1039/C7SE00603A in citations.
Quantitative analysis of the transient photoluminescence of CH$_{\text{3}}$NH$_{\text{3}}$PbI$_{\text{3}}$/PC$_{\text{61}}$BM heterojunctions by numerical simulations
Quantitative analysis of the transient photoluminescence of CH$_{\text{3}}$NH$_{\text{3}}$PbI$_{\text{3}}$/PC$_{\text{61}}$BM heterojunctions by numerical simulations
Transient photoluminescence measurements of lead-halide perovskite layers with electron or hole transport layers provide insights into the interfacial charge transfer and recombination processes. However, analytically describing these measurements over a wide range of timescales is complicated by th...
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Personal Name(s): | Krogmeier, Benedikt |
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Staub, Florian / Grabowski, David / Rau, Uwe / Kirchartz, Thomas (Corresponding author) | |
Contributing Institute: |
Photovoltaik; IEK-5 |
Published in: | Sustainable energy & fuels, 2 (2018) 5, S. 1027 - 1034 |
Imprint: |
Cambridge
Royal Society of Chemistry
2018
|
DOI: |
10.1039/C7SE00603A |
Document Type: |
Journal Article |
Research Program: |
Solar cells of the next generation |
Publikationsportal JuSER |
Transient photoluminescence measurements of lead-halide perovskite layers with electron or hole transport layers provide insights into the interfacial charge transfer and recombination processes. However, analytically describing these measurements over a wide range of timescales is complicated by the combination of different physical effects such as transport within the perovskite, transfer to the transport layer, accumulation of charges and recombination at the interface. Therefore, numerical drift-diffusion simulations of photoluminescence transients as a function of laser fluence and interface properties are used to obtain a quantitative understanding of experimental results. Comparison between experiment and simulation combined with an analysis of the uniqueness of the result yields an interface-recombination velocity that has to be around ∼200 cm s−1 for the perovskite–PC61BM interface in order to be consistent with data obtained at several laser fluences |