A piperidinium salt stabilizes efficient metal-halide perovskite solar cells

被引：612

作者：

Lin, Yen-Hung ^{[1
]}

Sakai, Nobuya ^{[1
]}

Da, Peimei ^{[1
]}

Wu, Jiaying ^{[2
,3
]}

Sansom, Harry C. ^{[1
]}

Ramadan, Alexandra J. ^{[1
]}

Mahesh, Suhas ^{[1
]}

Liu, Junliang ^{[4
]}

Oliver, Robert D. J. ^{[1
]}

Lim, Jongchul ^{[1
,10
]}

Aspitarte, Lee ^{[5
]}

Sharma, Kshama ^{[6
]}

Madhu, P. K. ^{[6
]}

Morales-Vilches, Anna B. ^{[7
]}

Nayak, Pabitra K. ^{[1
,6
]}

Bai, Sai ^{[8
]}

Gao, Feng ^{[8
]}

Grovenor, Chris R. M. ^{[4
]}

Johnston, Michael B. ^{[1
]}

Labram, John G. ^{[5
]}

Durrant, James R. ^{[2
,3
,9
]}

Ball, James M. ^{[1
]}

Wenger, Bernard ^{[1
]}

Stannowski, Bernd ^{[7
]}

Snaith, Henry J. ^{[1
]}

机构：

[1] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England

[2] Imperial Coll London, Dept Chem, London W12 0BZ, England

[3] Imperial Coll London, Ctr Plast Elect, London W12 0BZ, England

[4] Univ Oxford, Dept Mat, Oxford OX1 3PH, England

[5] Oregon State Univ, Sch Elect Engn & Comp Sci, Corvallis, OR 97331 USA

[6] Tata Inst Fundamental Res, TIFR Ctr Interdisciplinary Sci, Hyderabad 500107, India

[7] Helmholtz Zentrum Berlin Mat & Energie GmbH, PVcomB, D-12489 Berlin, Germany

[8] Linkoping Univ, Dept Phys Chem & Biol IFM, S-58183 Linkoping, Sweden

[9] Swansea Univ, Coll Engn, Sustainable Prod Engn Ctr Innovat Funct Ind Coati, Bay Campus, Swansea SA1 8EN, W Glam, Wales

[10] Chungnam Natl Univ, Grad Sch Energy Sci & Technol, Daejeon 34134, South Korea

来源：

SCIENCE | 2020年 / 369卷 / 6499期

基金：

英国工程与自然科学研究理事会;

关键词：

CHARGE-DENSITY DEPENDENCE; OPEN-CIRCUIT VOLTAGE; CARRIER MOBILITY; INDUCED DEGRADATION; RECOMBINATION; FORMAMIDINIUM; PHOTOVOLTAICS; TRANSPORT; KINETICS; LIGHT;

D O I：

10.1126/science.aba1628

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Longevity has been a long-standing concern for hybrid perovskite photovoltaics. We demonstrate high-resilience positive-intrinsic-negative perovskite solar cells by incorporating a piperidinium-based ionic compound into the formamidinium-cesium lead-trihalide perovskite absorber. With the bandgap tuned to be well suited for perovskite-on-silicon tandem cells, this piperidinium additive enhances the open-circuit voltage and cell efficiency. This additive also retards compositional segregation into impurity phases and pinhole formation in the perovskite absorber layer during aggressive aging. Under full-spectrum simulated sunlight in ambient atmosphere, our unencapsulated and encapsulated cells retain 80 and 95% of their peak and post-burn-in efficiencies for 1010 and 1200 hours at 60 degrees and 85 degrees C, respectively. Our analysis reveals detailed degradation routes that contribute to the failure of aged cells.

引用

页码：96 / +

页数：64

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