Solution-synthesized SnO2 nanorod arrays for highly stable and efficient perovskite solar cells

被引：17

作者：

Zhang, Chenxi ^{[1
]}

Deng, Xueshuang ^{[1
]}

Zheng, Jianfeng ^{[1
]}

Zhou, Xin ^{[1
]}

Shi, Jianhua ^{[2
]}

Chen, Xiaohong ^{[1
]}

Sun, Zhuo ^{[1
]}

Huang, Sumei ^{[1
]}

机构：

[1] East China Normal Univ, Sch Phys & Mat Sci, Minist Educ, Engn Res Ctr Nanophoton & Adv Instrument, North Zhongshan Rd 3663, Shanghai 200062, Peoples R China

[2] Shanghai Inst Microsyst & Informat Technol, New Energy Technol Ctr, 865 Chang Ning Rd, Shanghai 200050, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2018年 / 283卷

基金：

中国国家自然科学基金; 上海市自然科学基金;

关键词：

Perovskite solar cell; Spin-coating; Photovoltaics; SnO2 nanorod array; Stability; ELECTRON SELECTIVE CONTACT; ORGANOLEAD TRIHALIDE; INDUCED DEGRADATION; TIO2; NANOROD; ZINC-OXIDE; PERFORMANCE; STABILITY; HETEROJUNCTION; LAYERS; FILMS;

D O I：

10.1016/j.electacta.2018.07.028

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We report a simple and low-cost approach to enhance the longstanding stability of the perovskite solar cell (PSC) through the application of low-temperature grown SnO2 nanorod (NR) arrays. SnO2 NR arrays were fabricated by an aqueous synthesis method in the presence of hydrochloric acid and using thin compact SnO2 as seeds. The influence of HCI concentration on the photovoltaic (PV) performance of the SnO2 NR array based PSC device was investigated. The formed crystalline SnO2 nanorods with square transversal-sections were oriented on the FTO facets in a well-defined and perpendicular fashion at an optimal HC1 concentration. The optimized width and length for Sn(O2 )nanorods were 30 nm and 150 nm, respectively. Consequently, efficient and stable SnO2 nanorod based perovskite devices were obtained with an average power conversion efficiency (PCE) of 16.57%. The SnO2 nanorod array based PSCs demonstrated considerably better ultraviolet (UV) and ambient air stability than the planar SnO2 and notably mesoporous TiO2 solar cells. This paper provides a prospective scheme to grow high-quality three-dimensional SnO2 nanorod arrays for highly stable and efficient PSCs. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：1134 / 1145

页数：12

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