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Preparation and optical properties of amorphous silica doped with porphins, TCPP

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Title: Preparation and optical properties of amorphous silica doped with porphins, TCPP
Authors: Uo, Motohiro Browse this author →KAKEN DB
Yamana, Mitsuharu Browse this author
Soga, Kohei Browse this author
Inoue, Hiroyuki Browse this author
Makishima, Akio Browse this author
Keywords: TCPP
sol-gel process
photochemical hole burning(PHB)
hole width
quantum efficiency
irreversible broadening
Issue Date: Oct-1997
Publisher: SPIE-The International Society for Optical Engineering
Journal Title: Proceedings of SPIE
Volume: 3136
Start Page: 2
End Page: 9
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.
Description: Sol-Gel Optics IV
Type: article (author version)
Appears in Collections:歯学院・歯学研究院 (Graduate School of Dental Medicine / Faculty of Dental Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 宇尾 基弘

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