Natural material from carnauba wax to enhance the moisture stability for high-efficiency Perovskite solar cells

Xiangyu Kong; Lizhi Hou; Yingjun Qian; Haitao Wang; Zhengjie Xu

doi:10.1117/12.2628599

16 February 2022 Natural material from carnauba wax to enhance the moisture stability for high-efficiency Perovskite solar cells

Xiangyu Kong, Lizhi Hou, Yingjun Qian, Haitao Wang, Zhengjie Xu

Author Affiliations +

Proceedings Volume 12164, International Conference on Optoelectronic Materials and Devices (ICOMD 2021); 121640P (2022) https://doi.org/10.1117/12.2628599
Event: 2021 International Conference on Optoelectronic Materials and Devices, 2021, Guangzhou, China

Abstract

Organic-inorganic hybrid halide perovskites have great potential in solar cells, but they suffer from moisture-induced instability. In this study, we developed a natural material-- tetracosanoic acid (TA) to modify the surface of CH₃NH₃PbI₃ perovskite films to enhance the moisture stability. The power conversion efficiency (PCE) of the TA modified perovskite solar cells (PSCs) retained ~85% of their initial PCE when stored for 20 days at a relative humidity of 25% at 25°C, whereas a pristine cell only retained 54% of its initial value. Our findings demonstrated a simple, inexpensive, and environmentally friendly method to improve moisture stability of PSCs.

Citation Download Citation

Xiangyu Kong, Lizhi Hou, Yingjun Qian, Haitao Wang, and Zhengjie Xu "Natural material from carnauba wax to enhance the moisture stability for high-efficiency Perovskite solar cells", Proc. SPIE 12164, International Conference on Optoelectronic Materials and Devices (ICOMD 2021), 121640P (16 February 2022); https://doi.org/10.1117/12.2628599

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