Optically induced anisotropy in photoresponsive sol-gel matrix bearing a silylated disperse red 1

Hoon Choi Dong Hoon Choi, Jin Cho Kang Jin Cho, Kwan Cha Young Kwan Cha, Joon Oh Sang Joon Oh

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We synthesized the simple triethoxysilanes (SGDR1) bearing a disperse red 1 for thin film fabrication. The thin films were prepared using the solution of SGDR1 after hydrolysis and condensation. The films were annealed at two different temperatures such as 150°C and 200°C. Trans-to-cis photoisomerization was observed under the exposure of 532 nm light with UV-Vis absorption spectroscopy. The kinetic study of photoisomerization was performed in the film. Reorientation of the polar azobenzene molecules induced optical anisotropy under a linearly polarized light at 532 nm. The effect of aggregation of the chromophores and annealing of the silicon oxide in the matrix were studied on the dynamic properties of isomerization and induced birefringence.

Original languageEnglish
Pages (from-to)1222-1226
Number of pages5
JournalBulletin of the Korean Chemical Society
Volume21
Issue number12
Publication statusPublished - 2000 Dec 20
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)

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