Quadruple-Cation Wide-Bandgap Mixed-Halide Tin Perovskite Solar Cells

被引：3

作者：

Kuan, Chun-Hsiao ^{[1
,2
]}

Chen, Yu-Cheng ^{[1
,2
]}

Narra, Sudhakar ^{[1
,2
]}

Chang, Chun-Fu ^{[1
,2
]}

Tsai, Yi-Wei ^{[3
]}

Lin, Jhih-Min ^{[3
]}

Chen, Guan-Ruei ^{[3
]}

Diau, Eric Wei-Guang ^{[1
,2
,4
]}

机构：

[1] Natl Yang Ming Chiao Tung Univ, Dept Appl Chem, Hsinchu 300093, Taiwan

[2] Natl Yang Ming Chiao Tung Univ, Inst Mol Sci, Hsinchu 300093, Taiwan

[3] Natl Synchrotron Radiat Res Ctr, Hsinchu 30076, Taiwan

[4] Natl Yang Ming Chiao Tung Univ, Ctr Emergent Funct Matter Sci, Hsinchu 300093, Taiwan

来源：

ACS ENERGY LETTERS | 2024年 / 9卷 / 05期

关键词：

PERFORMANCE; EFFICIENT;

D O I：

10.1021/acsenergylett.4c00796

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Tin-based perovskite solar cells (TPSCs) are a promising alternative to the traditional lead-based PSCs for lead-free photovoltaic applications. To further promote the performance and stability, a tandem type of TPSC is an attractive direction to pursue. To serve as a low-bandgap TPSC with the bandgap (E-g) of around 1.4 eV, searching for a high-bandgap TPSC with an E-g in the range 1.8-2.0 eV is an important task to build a lead-free tandem TPSC. Herein, we report the first quadruple-cation wide-bandgap TPSC with the perovskite structure of FA(0.55)MA(0.25)Cs(0.1)PMA(0.1)SnBr(2)I (FA, formamidinium; MA, methylammonium; PMA, phenylmethylammonium) and an E-g of 1.93 eV to give the efficiency of power conversion of 6.2%. We found that PMA plays a key role in passivating the grain surface of perovskites and the interface between the perovskite and the hole-transport layer to give high performance and great stability for a wide-bandgap TPSC with a quadruple-cation configuration.

引用

页码：2351 / 2357

页数：7

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