Ion-Dipole Interaction Enabling Highly Efficient CsPbI3 Perovskite Indoor Photovoltaics

被引：52

作者：

Wang, Kai-Li ^{[1
]}

Lu, Haizhou ^{[2
]}

Li, Meng ^{[3
]}

Chen, Chun-Hao ^{[1
]}

Zhang, Ding-Bo ^{[4
]}

Chen, Jing ^{[1
]}

Wu, Jun-Jie ^{[1
]}

Zhou, Yu-Hang ^{[1
]}

Wang, Xue-Qi ^{[1
]}

Su, Zhen-Huang ^{[5
]}

Shi, Yi-Ran ^{[1
]}

Tian, Qi-Sheng ^{[1
]}

Ni, Yu-Xiang ^{[4
]}

Gao, Xing-Yu ^{[5
]}

Zakeeruddin, Shaik M. ^{[2
]}

Gratzel, Michael ^{[2
]}

Wang, Zhao-Kui ^{[1
]}

Liao, Liang-Sheng ^{[1
,6
]}

机构：

[1] Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Adv Negat Carbon Technol, Suzhou 215123, Peoples R China

[2] Ecole Polytech Fed Lausanne EPFL, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland

[3] Henan Univ, Sch Mat Sci & Engn, Key Lab Special Funct Mat, Kaifeng 475004, Peoples R China

[4] Southwest Jiaotong Univ, Sch Phys Sci & Technol, Chengdu 610031, Peoples R China

[5] Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China

[6] Macau Univ Sci & Technol, Macao Inst Mat Sci & Engn, Taipa 999078, Macau, Peoples R China

来源：

ADVANCED MATERIALS | 2023年 / 35卷 / 31期

基金：

中国国家自然科学基金;

关键词：

crystallization; indoor photovoltaics; ion-dipole interaction; perovskites; SOLAR-CELLS; OPERATIONAL STABILITY; HYBRID PEROVSKITES; PERFORMANCE; IMPROVES; GROWTH;

D O I：

10.1002/adma.202210106

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Metal halide perovskites are ideal candidates for indoor photovoltaics (IPVs) because of their easy-to-adjust bandgaps, which can be designed to cover the spectrum of any artificial light source. However, the serious non-radiative carrier recombination under low light illumination restrains the application of perovskite-based IPVs (PIPVs). Herein, polar molecules of amino naphthalene sulfonates are employed to functionalize the TiO2 substrate, anchoring the CsPbI3 perovskite crystal grains with a strong ion-dipole interaction between the molecule-level polar interlayer and the ionic perovskite film. The resulting high-quality CsPbI3 films with the merit of defect-immunity and large shunt resistance under low light conditions enable the corresponding PIPVs with an indoor power conversion efficiency of up to 41.2% (P-in: 334.11 & mu;W cm(-2), P-out: 137.66 & mu;W cm(-2)) under illumination from a commonly used indoor light-emitting diode light source (2956 K, 1062 lux). Furthermore, the device also achieves efficiencies of 29.45% (P-out: 9.80 & mu;W cm(-2)) and 32.54% (P-out: 54.34 & mu;W cm(-2)) at 106 (P-in: 33.84 & mu;W cm(-2)) and 522 lux (P-in: 168.21 & mu;W cm(-2)), respectively.

引用

页数：10

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