Control of the photorefractive effect using a low Tg sol-gel glass

Dong Hoon Choi, Woongi Jun, Kwang Yong Oh, Jae Hong Kim

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We prepared the photorefractive sol-gel glass based on organic-inorganic hybrid materials containing a charge transporting molecule, second-order nonlinear optical chromophore, photosensitizer, and plasticizer. Carbazole and 2-{4-[(2-hydroxyethyl) methylamino] benzylidene}malononitrile were reacted with 3-isocyanatopropyl triethoxysilane and the functionalized silanes were employed to fabricate the efficient photorefractive media including 2,4,7-trinitrofluorenone (TNF) to form a charge transfer complex. The simplest way to vary the composition in the matrix was to mix the desired amount of the functionalized alkoxysilane. The prepared sol-gel glass samples contained a large amount of nonlinear optical (NLO) chromophore compared to that of the charge transporting molecules. They showed a large net gain coefficient and high diffraction efficiency at certain conditions.

Original languageEnglish
Pages (from-to)173-180
Number of pages8
JournalPolymer Bulletin
Volume49
Issue number2-3
DOIs
Publication statusPublished - 2002 Dec 1
Externally publishedYes

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Chromophores
chromophores
Sol-gels
gels
malononitrile
Silanes
Plasticizers
Glass
Molecules
Photosensitizing Agents
Photosensitizers
Diffraction efficiency
plasticizers
glass
carbazoles
Hybrid materials
silanes
Charge transfer
molecules
charge transfer

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics

Cite this

Control of the photorefractive effect using a low Tg sol-gel glass. / Choi, Dong Hoon; Jun, Woongi; Oh, Kwang Yong; Kim, Jae Hong.

In: Polymer Bulletin, Vol. 49, No. 2-3, 01.12.2002, p. 173-180.

Research output: Contribution to journalArticle

Choi, Dong Hoon ; Jun, Woongi ; Oh, Kwang Yong ; Kim, Jae Hong. / Control of the photorefractive effect using a low Tg sol-gel glass. In: Polymer Bulletin. 2002 ; Vol. 49, No. 2-3. pp. 173-180.
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