Facile preparation of TiOX film as an interface material for efficient inverted polymer solar cells

被引：44

作者：

Bao, Xichang ^{[1
]}

Sun, Liang ^{[1
,2
]}

Shen, Wenfei ^{[1
,3
]}

Yang, Chunpeng ^{[1
]}

Chen, Weichao ^{[1
]}

Yang, Renqiang ^{[1
]}

机构：

[1] Chinese Acad Sci, CAS Key Lab Biobased Mat, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Qingdao Univ, Inst Hybrid Mat, Lab New Fiber Mat & Modern Text, Growing Base State Key Lab, Qingdao 266071, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2014年 / 2卷 / 06期

基金：

中国国家自然科学基金;

关键词：

ATOMIC LAYER DEPOSITION; OXIDE THIN-FILM; HIGH-PERFORMANCE; CONVERSION;

D O I：

10.1039/c3ta13275g

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：

Titanium oxide (TiOX) is an effective electron transport layer in polymer solar cells (PSCs). Here, we report an efficient inverted polymer solar cell based on P3HT and fullerenes using a high density, single-step solution processed amorphous TiOX (alpha-TiOX) film as an electron transport layer. The alpha-TiOX film was prepared by spin coating tetrabutyl titanate (TBT) isopropanol solution onto ITO coated glass in a glovebox filled with N-2 and then annealing at different temperatures in air. The films with high light transmittance are very smooth. The PSCs with the alpha-TiOX electron transport layer showed enhanced photovoltaic performance in comparison with the device using PEDOT:PSS as the anode buffer layer. The optimized power conversion efficiency (PCE) of the PSCs based on P3HT/PC61BM and P3HT/PC71BM with the alpha-TiOX electron transport layer reached 4.25% and 4.65%, respectively, under AM1.5G illumination (100 mW cm(-2)). In addition, the PSCs with the alpha-TiOX electron transport layer exhibited good stability. The results indicate that facile preparation of alpha-TiOX films using cheap TBT is promising for high-efficiency PSCs and large-scale fabrication of flexible electronics.

引用

页码：1732 / 1737

页数：6

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