Two-/Three-Dimensional Perovskite Bilayer Thin Films Post-Treated with Solvent Vapor for High-Performance Perovskite Photovoltaics

被引：18

作者：

Chen, Rui ^{[1
]}

Shen, Lening ^{[1
]}

Zheng, Luyao ^{[1
]}

Zhu, Tao ^{[1
]}

Liu, Yanghe ^{[1
]}

Liu, Lei ^{[1
]}

Zheng, Jie ^{[2
]}

Gong, Xiong ^{[1
]}

机构：

[1] Univ Akron, Sch Polymer Sci & Polymer Engn, Akron, OH 44325 USA

[2] Univ Akron, Coll Engn & Polymer Sci, Dept Chem Biomol & Corros Engn, Akron, OH 44325 USA

来源：

ACS APPLIED MATERIALS & INTERFACES | 2021年 / 13卷 / 41期

基金：

美国国家科学基金会;

关键词：

perovskite photovoltaics; 2D/3D perovskite bilayer thin film; power conversion efficiency; photodetectivity; stability; SOLAR-CELLS; HIGH-DETECTIVITY; PHOTODETECTORS; LIGHT; IODIDE;

D O I：

10.1021/acsami.1c15735

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Perovskite photovoltaics (PPVs) using three-dimensional (3D) perovskites incorporated with two-dimensional (2D) perovskites have drawn great concentration in both academic and industrial sectors. Here, we report high performance of PPVs based on the 2D/3D perovskite bilayer thin film post-annealed with solvent vapor. The 2D/3D perovskite bilayer thin film post-annealed with solvent vapor possesses enlarged crystal size and crystallinity and blue-shifted photoluminescence compared to a 3D MAPbI(3) thin film. Moreover, compared to the PPVs based on a 3D perovskite thin film, enlarged built-in potential, suppressed charge carrier recombination, boosted charge transport, and reduced charge carrier extraction time are observed from the PPVs based on the 2D/3D perovskite bilayer thin film post-annealed with solvent vapor. As a result, perovskite solar cells exhibit a power conversion efficiency of 22.13% and dramatically enhanced stability, and perovskite photodetectors show a photoresponsivity of 1.38 AW(-1), detectivity of 6.52 x 10(14) cm Hz(1/2) W-1, and linear dynamic range of over 167 dB at room temperature. These results demonstrate that we develop a simple method to approach high-performance PPVs by the 2D/3D perovskite bilayer thin film.

引用

页码：49104 / 49113

页数：10

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