钙钛矿(结构)
材料科学
光电子学
带隙
光致发光
傅里叶变换红外光谱
磁滞
化学工程
化学
有机化学
物理
量子力学
工程类
作者
Francesco Bisconti,Mauro Leoncini,Salvatore Gambino,Nadir Vanni,Sonia Carallo,Francesca Russo,Vincenza Armenise,Andrea Listorti,Silvia Colella,Salvatore Valastro,Alessandra Alberti,Giovanni Mannino,Aurora Rizzo
出处
期刊:ACS Nano
[American Chemical Society]
日期:2023-12-29
卷期号:18 (2): 1573-1581
被引量:1
标识
DOI:10.1021/acsnano.3c09437
摘要
Fostered by the top power conversion efficiencies (PCEs) of lab-scale devices, industrialization of perovskite solar cells is underway. Nevertheless, the intrinsically poor stability of these materials still represents a major concern. Herein, inspired by Nature, the use of β-carotene in perovskite solar cells is proposed to mimic its role as a protective pigment, as occurs in natural photosynthesis. Laser-mediated photostability (LMPS) assessment, Fourier-transform infrared spectra analysis acquired in attenuate total reflectance (ATR-FTIR), spectroscopy ellipsometry (SE), and time-resolved photoluminescence (TRPL) measurements under stress conditions prove that the inclusion of a thin β-carotene interlayer promotes a high improvement in the photostability of the perovskite films against photooxidation. Importantly, this is accompanied by an improvement of the solar cell PCE that approaches 20% efficiency with no hysteresis, which is among the highest values reported for a mixed halide (I-Br) perovskite with a band gap of 1.74 eV, relevant for coupling with silicon in tandem cells.
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