Low-Temperature Solution-Processed Perovskite Solar Cells with High Efficiency and Flexibility

被引：1295

作者：

You, Jingbi ^{[1
]}

Hong, Ziruo ^{[1
]}

Yang, Yang ^{[1
]}

Chen, Qi ^{[1
]}

Cai, Min ^{[1
]}

Song, Tze-Bin ^{[1
]}

Chen, Chun-Chao ^{[1
]}

Lu, Shirong ^{[1
]}

Liu, Yongsheng ^{[1
]}

Zhou, Huanping ^{[1
]}

Yang, Yang ^{[1
,2
]}

机构：

[1] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA

[2] Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USA

来源：

ACS NANO | 2014年 / 8卷 / 02期

基金：

美国国家科学基金会;

关键词：

perovskite solar cells; low temperature; planar structure; flexible solar cells; HIGH-PERFORMANCE; LOW-COST; LENGTHS;

D O I：

10.1021/nn406020d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Perovskite compounds have attracted recently great attention in photovoltaic research. The devices are typically fabricated using condensed or mesoporous TiO2 as the electron transport layer and 2,2'7,7'-tetrakis-(N,N-dip-methoxyphenylamine)9,9'-spirobifluorene as the hole transport layer. However, the high-temperature processing (450 degrees C) requirement of the TiO2 layer could hinder the widespread adoption of the technology. In this report, we adopted a low-temperature processing technique to attain high-efficiency devices in both rigid and flexible substrates, using device structure substrate/ITO/PEDOT:PSS/CH(3)NH(3)Pbl(3-x)Cl(x)/PCBM/Al, where PEDOT:PSS and PCBM are used as hole and electron transport layers, respectively. Mixed halide perovskite, CH(3)NH(3)Pbl(3-x)Cl(x) was used due to its long carrier lifetime and good electrical properties. All of these layers are solution-processed under 120 degrees C. Based on the proposed device structure, power conversion efficiency (PCE) of 11.5% is obtained in rigid substrates (glass/ITO), and a 9.2% PCE is achieved for a polyethylene terephthalate/ITO flexible substrate.

引用

页码：1674 / 1680

页数：7

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