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10 March 2020 Impact of PL reabsorption and surface passivation on the internal quantum efficiency of perovskite solar cells (Conference Presentation)
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Abstract
Internal quantum efficiency (IQE) is a key parameter determining solar cell power conversion efficiency. While reported IQEs of metal-halide perovskite solar cells are often close to one, the contributions of photoluminescence reabsorption (PLr) and surface recombination (SR) to IQE has not been elucidated. In this work, both effects are examined by photoluminescence spectroscopies and time-resolved terahertz spectroscopy (TRTS). Then PLr rate and SR velocity are extracted from TRTS kinetics by diffusion theory. At last a model is proposed to calculate the carrier-collection probability and discuss contributions of PLr and SR on the IQE.
Conference Presentation
© (2020) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mingcong Wang, Kai Wang, Yajun Gao, Jafar I. Khan, Dalia Al Nakdali, Erkki Alarousu, Stefaan De Wolf, Denis Andrienko, and Frederic Laquai "Impact of PL reabsorption and surface passivation on the internal quantum efficiency of perovskite solar cells (Conference Presentation)", Proc. SPIE 11275, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IX, 112750E (10 March 2020); https://doi.org/10.1117/12.2544139
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