A New Diarylethene with Donor-acceptor Group for Reversible Photo-induced Electrochemical Switching

Bulletin of the Korean chemical society

Eunkyoung Kim¹  Miyoung Kim¹  Kyongtae Kim¢Ó¹ 

关键词: Photochromism;    Diarylethene;    Ring cyclization;    Ring opening;    Photo-electrical switching;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

A new diarylethene compound with donor and acceptor substituent was synthesized from 2,3-bis(2-methylbenzo[ b]thiophene-3-yl)hexafluorocyclopentene (BTF) over 5 steps. The donor-acceptor structured BTF compound (TBTFE) showed spectral change to a longer wavelength through photochromism with a high cyclization quantum yield (0.56). The 3,4-ethylenedioxythiophene (T) and carboethoxy (E) groups directly connected to BTF unit promoted electrical change accompanied with the photoisomerization of the BTF unit. Photo-induced electrical switching was achieved from a photocell containing TBTFE doped polymer film, which showed reversible and stable current change over repeated cycles by the alternative UV/Vis irradiation, as estimated by the I-V plot.

【 授权许可】

Unknown