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Molecular Engineering of Zinc Phthalocyanines with Phosphinic Acid Anchoring Groups
Author(s) -
LópezDuarte Ismael,
Wang Mingkui,
HumphryBaker Robin,
Ince Mine,
MartínezDíaz M. Victoria,
Nazeeruddin Mohammad K.,
Torres Tomás,
Grätzel Michael
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201105950
Subject(s) - photocurrent , anchoring , zinc , open circuit voltage , scheme (mathematics) , voltage , chemistry , optoelectronics , computer science , materials science , electrical engineering , combinatorial chemistry , organic chemistry , engineering , psychology , mathematics , cognitive science , mathematical analysis
Anchors away! Two zinc phthalocyanine photosensitizers with different phosphinic acid anchor groups were synthesized (see scheme). Solar cells sensitized with these compounds have a short‐circuit photocurrent density of 7.6±0.2 mA cm −2 , an open‐circuit voltage of 559±30 mV, and a fill factor of 0.76±0.03, which corresponds to an overall conversion efficiency of 3.24 % under 1 sun.