期刊
ORGANIC ELECTRONICS
卷 13, 期 10, 页码 2042-2046出版社
ELSEVIER
DOI: 10.1016/j.orgel.2012.06.012
关键词
Organic optoelectronics; Interface electron transport materials; Titanium oxide; Solution-processed self-assembly method; Large-area applications; Highly uniform films
资金
- University Grant Council of the University of Hong Kong [10401466]
- General Research Fund (HKU) from the Research Grants Council of Hong Kong Special Administrative Region, China [712010]
We propose a self-assembly method for forming large-area high-quality solution-processed titanium oxide (TiO2) films as efficient electron transport layer for organic solar cells. The self-assembled solution-processed TiO2 layers are highly ordered and significantly improved in surface morphology over commonly-used spin-coating process resulting in better charge collection and significant material saving. When incorporated into polymer solar cells, the TiO2 device shows enhanced performance. Furthermore, we demonstrate the TiO2 can form large-area films, and achieve very uniform and improved device performances. Consequently, the self-assembled TiO2 films can be efficient and low-cost electron transport layer potentially for large-area organic optoelectronics. (c) 2012 Elsevier B.V. All rights reserved.
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