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Proceedings Paper

Preparation and optical properties of amorphous silica doped with porphins (TCPP)
Author(s): Motohiro Uo; Mitsuharu Yamana; Kohei Soga; Hiroyuki Inoue; Akio Makishima
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Paper Abstract

Tetrakis(4-carboxyphenyl)porphine (TCPP), which is well known as a photochemical hole burning (PHB) dye, was incorporated in amorphous silica materials (a-SiO2) by a sol-gel process with using tetramethoxysilane (TMOS) and aminopropyltriethoxysilane (APTES). With using APTES as precursor of silica gel, TCPP was cross-linked to a-SiO2 matrix through aminopropyl group of APTES. The cross-linkage of TCPP and APTES was confirmed by the FT-IR measurement. The TCPP incorporated in a-SiO2 matrices showed activity in PHB. In the TCPP cross-linked a-SiO2, properties of photochemical hole, such as hole width, quantum efficiency and irreversible broadening under cycle annealing experiment, were improved. A burnt hole at 3.6 K was observed after cycle annealing experiment up to 80 K in the TCPP cross-linked a- SiO2.

Paper Details

Date Published: 2 October 1997
PDF: 8 pages
Proc. SPIE 3136, Sol-Gel Optics IV, (2 October 1997); doi: 10.1117/12.279151
Show Author Affiliations
Motohiro Uo, Hokkaido Univ. (Japan)
Mitsuharu Yamana, NEC Corp. (Japan)
Kohei Soga, Univ. of Tokyo (Japan)
Hiroyuki Inoue, Univ. of Tokyo (Japan)
Akio Makishima, Univ. of Tokyo (Japan)

Published in SPIE Proceedings Vol. 3136:
Sol-Gel Optics IV
Bruce S. Dunn; John D. Mackenzie; Edward J. A. Pope; Helmut K. Schmidt; Masayuki Yamane, Editor(s)

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