Premium
Functionalized Porphyrin Discotic Liquid Crystals: Photoinduced Charge Separation and Trapping
Author(s) -
Fox Marye Anne,
Bard Allen J.,
Pan HorngLong,
Liu ChongYang
Publication year - 1993
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.199300050
Subject(s) - chemistry , discotic liquid crystal , trapping , porphyrin , excitation , liquid crystal , phase (matter) , charge (physics) , photochemistry , layer (electronics) , side chain , liquid crystalline , chemical physics , optoelectronics , organic chemistry , molecule , polymer , ecology , physics , quantum mechanics , electrical engineering , biology , engineering
Individual members of a family of highly absorptive porphyrins bearing symmetrically positioned flexible side chains form discotic liquid crystalline mesophases at modest temperature ranges. The order of this phase is preserved when a thin layer of this self‐assembled material is cooled to room temperature. Exposure of such films to visible excitation, with or without an externally applied electrical field, produces photovoltaic effects and/or charge trapping. The latter effect constitutes the basis for optoelectronic information storage.