Title :
Dye molecule/viologen system for a novel photoelectrochromism
Author :
Li, Yongxiang ; Hagen, Jürgen ; Haarer, Dietrich
Author_Institution :
Lehrstuhl fur Experimental Phys. IV, Bayreuth Univ., Germany
Abstract :
Ruthenium (II) tri-(bipyridyl) dye molecules (Ru(II)(bipy)·2Cl2) were used as a sensitiser which absorbs the visible light in the region of 360-500 nm. The photoexcited sensitiser can transfer charge carriers to an electron acceptor (benzyl-viologen) and lead to redox reactions. Along with these redox reactions the solution changes its color, while LiI or triethylamine (TEA) are added in the solution as electron delays. The coloring and bleaching processes of a test cell filled with the solution were examined exposing to different light intensities
Keywords :
colour; dyes; electrochromism; optical saturable absorption; photochromism; 360 to 500 nm; bleaching; coloring; dye molecule/viologen system; electron acceptor; light intensity; photoelectrochromism; photoexcited sensitiser; redox reactions; visible light absorption; Absorption; Bleaching; Charge carriers; Circuits; Delay; Electrodes; Electrons; Glass; Photochromism; Testing;
Conference_Titel :
Optoelectronic and Microelectronic Materials Devices, 1998. Proceedings. 1998 Conference on
Conference_Location :
Perth, WA
Print_ISBN :
0-7803-4513-4
DOI :
10.1109/COMMAD.1998.791686
