SQUARYLIUM DYE, PHOTOELECTRIC CONVERSION ELEMENT USING SAME, AND DYE-SENSITIZED SOLAR CELL USING SAME

WIPO Patent Application WO/2011/108432

A1

Disclosed are: a dye for a photoelectric conversion element or solar cell, which is capable of improving the photoelectric conversion efficiency in the near infrared region; and a photoelectric conversion element and a dye-sensitized solar cell, each using the dye. The dye is a squarylium compound or squarylium dye represented by formula (1). In formula (1), Y and Z each independently represents an atomic group forming a ring structure containing a five- or six-membered ring together with a carbon atom; A1 and A2 each independently represents a hydrogen atom or a carboxyl group, and at least either A1 or A2 is a carboxyl group that is bonded to the five- or six-membered ring; X represents C(CH3)2, S, Se or NR3, and R3 represents a hydrogen atom or a C1-C15 alkyl group; R1 represents a C5-C20 alkyl group or a fluorine-substituted alkyl group that is expressed as CF3(CF2)m(CH2)n; m and n each independently represents an integer of 0-14, while satisfying 2 ≤ m + n < 15; and R2 represents a C1-C15 alkyl group or a phenyl group.

YOSHINO HIDEAKI (JP)
YOSHIDA KEITA (JP)
YAMAGUCHI YOSHIHIRO (JP)

PCT/JP2011/054107

September 09, 2011

February 24, 2011

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NIPPON STEEL CHEMICAL CO (JP)
YOSHINO HIDEAKI (JP)
YOSHIDA KEITA (JP)
YAMAGUCHI YOSHIHIRO (JP)

C09B23/00; H01L31/04; H01M14/00

JP2006265549A	2006-10-05
JP2010027281A	2010-02-04

SASAKI Kazuya et al. (JP)
Kazuya Sasaki (JP)

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