Preparation and optical properties of amorphous silica doped with porphins (TCPP)

Motohiro Uo; Mitsuharu Yamana; Kohei Soga; Hiroyuki Inoue; Akio Makishima

doi:10.1117/12.279151

2 October 1997 Preparation and optical properties of amorphous silica doped with porphins (TCPP)

Motohiro Uo, Mitsuharu Yamana, Kohei Soga, Hiroyuki Inoue, Akio Makishima

Proceedings Volume 3136, Sol-Gel Optics IV; (1997) https://doi.org/10.1117/12.279151
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

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.

Citation Download Citation

Motohiro Uo, Mitsuharu Yamana, Kohei Soga, Hiroyuki Inoue, and Akio Makishima "Preparation and optical properties of amorphous silica doped with porphins (TCPP)", Proc. SPIE 3136, Sol-Gel Optics IV, (2 October 1997); https://doi.org/10.1117/12.279151

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