Dihydrophenanthrene-based metal-free dyes for highly efficient cosensitized solar cells.
Org Lett
; 14(14): 3612-5, 2012 Jul 20.
Article
em En
| MEDLINE
| ID: mdl-22775301
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 82 (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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MEDLINE
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En
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2012
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Article