Dihydrophenanthrene-Based Metal-Free Dyes for Highly Efficient Cosensitized Solar Cells
Organic Letters2012Vol. 14(14), pp. 3612–3615
Citations Over TimeTop 13% of 2012 papers
Ryan Yeh‐Yung Lin, Yung‐Sheng Yen, Yung-Tse Cheng, Chuan‐Pei Lee, Ying‐Chan Hsu, Hsien‐Hsin Chou, Chih‐Yu Hsu, Yung‐Chung Chen, Jiann T. Lin, Kuo–Chuan Ho, Chiitang Tsai
Abstract
Metal-free dyes (BP-1 to BP-3) containing a 9,10-dihydrophenanthrene unit in the spacer have been synthesized. The dye with the highest cell efficiency, BP-2, was used in combination with SQ2 for cosensitized DSSCs. The cosensitized DSSC in which the ratio of BP-2 and SQ2 is 8:2 (v/v) has a record high efficiency of 8.14% among cosensitized systems using all metal-free sensitizers. Dye distribution along the TiO2 film depth was analyzed by an Auger electron spectroscopy technique.
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