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Proceedings Paper

Impact of PL reabsorption and surface passivation on the internal quantum efficiency of perovskite solar cells (Conference Presentation)

Paper 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.

Paper Details

Date Published: 10 March 2020
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Proc. SPIE 11275, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IX, 112750E (10 March 2020); doi: 10.1117/12.2544139
Show Author Affiliations
Mingcong Wang, King Abdullah Univ. of Science and Technology (Saudi Arabia)
Kai Wang, King Abdullah Univ. of Science and Technology (Saudi Arabia)
Yajun Gao, King Abdullah Univ. of Science and Technology (Saudi Arabia)
Jafar I. Khan, King Abdullah Univ. of Science and Technology (Saudi Arabia)
Dalia Al Nakdali, King Abdullah Univ. of Science and Technology (Saudi Arabia)
Erkki Alarousu, King Abdullah Univ. of Science and Technology (Saudi Arabia)
Stefaan De Wolf, King Abdullah Univ. of Science and Technology (Saudi Arabia)
Denis Andrienko, Max-Planck-Institut für Polymerforschung (Germany)
Frederic Laquai, King Abdullah Univ. of Science and Technology (Saudi Arabia)


Published in SPIE Proceedings Vol. 11275:
Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IX
Alexandre Freundlich; Masakazu Sugiyama; Stéphane Collin, Editor(s)

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