SENSITIVE DETECTION OF PHOTOINDUCED ELECTROCHROMISM IN ULTRA-THIN ORGANIC FILMS

Abstract

Polymer films of tetrahydrofuran containing 4, 4′-bipyridinium-tetrakis[3, 5- bis(trifluoromethyl)phenyl]borate as part of the main chain were cast on the surface of an optical waveguide (OWG) glass and were irradiated in degassed atmosphere. Colour changes due to photoinduced electron transfer in ultra-thin polymer films were sensitively detected by the OWG technique.