Bimolecular Additives Improve Wide-Band-Gap Perovskites for Efficient Tandem Solar Cells with CIGS

被引：289

作者：

Kim, Dong Hoe ^{[1
,2
]}

Muzzillo, Christopher P. ^{[3
]}

Tong, Jinhui ^{[1
]}

Palmstrom, Axel F. ^{[3
]}

Larson, Bryon W. ^{[1
]}

Choi, Chungseok ^{[4
,5
]}

Harvey, Steven P. ^{[3
]}

Glynn, Stephen ^{[3
]}

Whitaker, James B. ^{[3
]}

Zhang, Fei ^{[1
]}

Li, Zhen ^{[1
]}

Lu, Haipeng ^{[1
]}

van Hest, Maikel F. A. M. ^{[3
]}

Berry, Joseph J. ^{[3
]}

Mansfield, Lorelle M. ^{[3
]}

Huang, Yu ^{[4
,5
]}

Yan, Yanfa ^{[6
,7
]}

Zhu, Kai ^{[1
]}

机构：

[1] Natl Renewable Energy Lab, Chem & Nanosci Ctr, 15013 Denver West Pkwy, Golden, CO 80401 USA

[2] Sejong Univ, Dept Nanotechnol & Adv Mat Engn, 209 Neungdong Ro, Seoul 05006, South Korea

[3] Natl Renewable Energy Lab, Mat Sci Ctr, 15013 Denver West Pkwy, Golden, CO 80401 USA

[4] Univ Calif Los Angeles, Dept Mat Sci, Los Angeles, CA 90095 USA

[5] Univ Calif Los Angeles, Engn & Calif NanoSyst Inst, Los Angeles, CA 90095 USA

[6] Univ Toledo, Dept Phys & Astron, Toledo, OH 43606 USA

[7] Univ Toledo, Wright Ctr Photovolta Innovat & Commercializat, Toledo, OH 43606 USA

来源：

JOULE | 2019年 / 3卷 / 07期

基金：

新加坡国家研究基金会;

关键词：

PERFORMANCE; PASSIVATION; PLANAR; IODIDE; PHOTOVOLTAICS; HYSTERESIS;

D O I：

10.1016/j.joule.2019.04.012

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：

Tandem solar cells coupling narrow- and wide-band-gap thin-film polycrystalline absorbers are attractive for achieving ultrahigh efficiency with low manufacturing cost. For established narrow-band-gap CIGS thin-film bottom cells, a challenge is to develop highly efficient polycrystalline wide-band-gap top cells. Here, we demonstrate a 1.68-eV (FA(0.65)MA(0.20)Cs(0.15))Pb(I0.8Br0.2)(3) wide-band-gap perovskite solar cell with an efficiency of similar to 20% enabled by using PEAI and Pb(SCN)(2) complementary additives in the perovskite precursor. The coupling of PEA(+) and SCN- provides a synergistic effect that overcomes growth challenges with either additive individually and improves perovskite film quality with enhanced crystallinity, reduced formation of excess PbI2 (in comparison to using Pb(SCN)(2) additive alone), lower defect density and energetic disorder, and an improved carrier mobility (similar to 47 cm(2)V(-1)s(-1)) and lifetime (similar to 2.9 mu s). When coupling a semi-transparent 1.68-eV perovskite top cell fabricated by this approach with a 1 .1 2-eV CIGS bottom cell, we achieve 25.9%-efficient polycrystalline perovskite/CIGS 4-terminal thin-film tandem solar cells.

引用

页码：1734 / 1745

页数：12

共 59 条

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