This title appears in the Scientific Report :
2017
Please use the identifier:
http://hdl.handle.net/2128/15556 in citations.
Please use the identifier: http://dx.doi.org/10.1021/acs.jpclett.7b02224 in citations.
Manipulating the Net Radiative Recombination Rate in Lead Halide Perovskite Films by Modification of Light Outcoupling
Manipulating the Net Radiative Recombination Rate in Lead Halide Perovskite Films by Modification of Light Outcoupling
Photon recycling is a fundamental physical process that becomes especially important for photovoltaic devices that operate close to the radiative limit. This implies that the externally measured radiative decay rate deviates from the internal radiative recombination rate of the material. In the pres...
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Personal Name(s): | Staub, Florian |
---|---|
Kirchartz, Thomas (Corresponding author) / Bittkau, Karsten / Rau, Uwe | |
Contributing Institute: |
Photovoltaik; IEK-5 |
Published in: | The @journal of physical chemistry letters, 8 (2017) S. 5084 - 5090 |
Imprint: |
Washington, DC
ACS
2017
|
DOI: |
10.1021/acs.jpclett.7b02224 |
PubMed ID: |
28976758 |
Document Type: |
Journal Article |
Research Program: |
Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) Solar cells of the next generation |
Link: |
Restricted OpenAccess Restricted OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1021/acs.jpclett.7b02224 in citations.
Photon recycling is a fundamental physical process that becomes especially important for photovoltaic devices that operate close to the radiative limit. This implies that the externally measured radiative decay rate deviates from the internal radiative recombination rate of the material. In the present Letter, the probability of photon recycling in organic lead halide perovskite films is manipulated by modifying the underlying layer stacks. We observe recombination kinetics by time-resolved photoluminescence that is controlled by the optical design of the chosen layer structure. Quantitative simulations of decay rates and emission spectra show excellent agreement with experimental results if we assume that the internal bimolecular recombination coefficient is ~ 66 % radiative. |