Journal
ORGANIC LETTERS
Volume 14, Issue 14, Pages 3612-3615Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ol301374c
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- Academia Sinica (AC)
- NSC (Taiwan)
- Instrumental Center of Institute of Chemistry (AC)
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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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