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The photovoltaic stability of, bis(isothiocyanato)rlutheniurn(II)‐bis‐2, 2′bipyridine‐4, 4′‐dicarboxylic acid and related sensitizers
Author(s) -
Kohle Oliver,
Grätzel Michael,
Meyer Andreas F.,
Meyer Tobias B.
Publication year - 1997
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.19970091111
Subject(s) - dicarboxylic acid , materials science , photovoltaic system , degradation (telecommunications) , bipyridine , anatase , ligand (biochemistry) , 2,2' bipyridine , photochemistry , polymer chemistry , organic chemistry , catalysis , chemistry , receptor , photocatalysis , biochemistry , ecology , telecommunications , computer science , crystal structure , biology
The photovoltaic stability of Ru II (LH 2 ) 2 (NCS) 2 (where LH 2 = 2,2′‐bipyridyl‐4,4′‐dicarboxylic acid), a potential sensitizer for solar cells based on anatase, is examined. Its suitability for this role is demonstrated by a 7000 h endurance test, at the end of which no discernible signs of degradation can be detected. An explanation for its remarkable stability of provided by an investigation of its photo‐ and thermally induced reactions in alcoholic solution. Recommendations as to how to avoid ligand substitution reactions that may be undesirable for certain applications are also made.