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arXiv · 2306.04194

Surface Saturation Current Densities of Perovskite Thin Films from Suns-Photoluminescence Quantum Yield Measurements

Robert Lee Chin·Arman Mahboubi Soufiani·Paul Fassl·Jianghui Zheng·Eunyoung Choi·Anita Ho-Baillie·Ulrich Paetzold·Thorsten Trupke·Ziv Hameiri
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Abstract

We present a simple, yet powerful analysis of Suns-photoluminescence quantum yield measurements that can be used to determine the surface saturation current densities of thin film semiconductors. We apply the method to state-of-the-art polycrystalline perovskite thin films of varying absorber thickness. We show that the non-radiative bimolecular recombination in these samples originates from the surfaces. To the best of our knowledge, this is the first study to demonstrate and quantify non-linear (bimolecular) surface recombination in perovskite thin films.

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Robert Lee Chin, Arman Mahboubi Soufiani, Paul Fassl, Jianghui Zheng, Eunyoung Choi, Anita Ho-Baillie, Ulrich Paetzold, Thorsten Trupke, Ziv Hameiri. 2023-06-07. Surface Saturation Current Densities of Perovskite Thin Films from Suns-Photoluminescence Quantum Yield Measurements. https://arxiv.org/abs/2306.04194

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