1-Adamantanamine Hydrochloride Resists Environmental Corrosion to Obtain Highly Efficient and Stable Perovskite Solar Cells

Baibai Liu; Dongmei He; Qian Zhou; Yu Chen; Peng He; Xiao Han; Danqing Ma; Yong He; Yuelong Li; Pengjun Zhao; Zong-Xiang Xu; Shirong Lu; Zhigang Zang; Jiangzhao Chen

doi:10.1021/acs.jpclett.3c00298

1-Adamantanamine Hydrochloride Resists Environmental Corrosion to Obtain Highly Efficient and Stable Perovskite Solar Cells

J Phys Chem Lett. 2023 Mar 16;14(10):2501-2508. doi: 10.1021/acs.jpclett.3c00298. Epub 2023 Mar 3.

Authors

Baibai Liu¹, Dongmei He¹, Qian Zhou¹, Yu Chen¹, Peng He¹, Xiao Han¹, Danqing Ma¹, Yong He¹, Yuelong Li², Pengjun Zhao³, Zong-Xiang Xu⁴, Shirong Lu⁵, Zhigang Zang¹, Jiangzhao Chen¹

Affiliations

¹ Key Laboratory of Optoelectronic Technology & Systems (Ministry of Education), College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China.
² Institute of Photoelectronic Thin Film Devices and Technology of Nankai University, Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin, Solar Energy Research Center of Nankai University, Tianjin 300350, China.
³ Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China.
⁴ Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.
⁵ Department of Material Science and Technology, Taizhou University, Taizhou 318000, China.

PMID: 36867844
DOI: 10.1021/acs.jpclett.3c00298

Abstract

Passivating the defective surface of perovskite film is a promising strategy to improve the stability and efficiency of perovskite solar cells (PSCs). Herein, 1-adamantanamine hydrochloride (ATH) is introduced to the upper surface of the perovskite film to heal the defects of the perovskite surface. The best-performance ATH-modified device has a higher efficiency (23.45%) than the champion control device (21.53%). The defects are passivated, interfacial nonradiative recombination is suppressed, and interface stress is released by the ATH deposited on the perovskite film, leading to longer carrier lifetimes and enhancement in open-circuit voltage (V_OC) and fill factor (FF) of the PSCs. With obvious improvement, V_OC and FF of 1.159 V and 0.796 for the control device are raised to 1.178 V and 0.826 for the ATH-modified device, respectively. Finally, during an operational stability measurement of more than 1000 h, the ATH-treated PSC exhibited better moisture resistance, thermal persistence, and light stability.