Premium
Photochromism: All‐Optical Fine‐Tuning of Absorption Band of Diarylethene with Photochromic Acid‐Generating Spiropyran (Advanced Optical Materials 9/2016)
Author(s) -
Kusumoto Sara,
Nakagawa Tetsuya,
Yokoyama Yasushi
Publication year - 2016
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201670049
Subject(s) - photochromism , diarylethene , spiropyran , materials science , irradiation , absorption (acoustics) , photochemistry , absorption band , optoelectronics , optics , chemistry , nanotechnology , physics , nuclear physics , composite material
Y. Yokoyama and co‐workers demonstrate that upon irradiation with blue light, the spiropyran MC‐isomer (bottom/right) is changed to the SP‐isomer (top/right), on page 1350. During this process, protons are transferred from SP to the blue diarylethene (DAE)‐C (bottom/left) for conversion to DAE‐C(H + ) 2 (top/left). While SP reverts to MC thermally, protons return from DAE‐C(H + ) 2 to MC. Thus, the absorption band position of DAE‐C is continuously controlled only by light irradiation of the MC–SP conjugate.