Visible luminescence of nanosized polysilane photoconductors, incorporated into mesoporous silica

N. Ostapenko; N. Kotova; V. Lukashenko; G. Telbiz; S. Suto; A. Watanabe

doi:10.1080/15421400590891047

Visible luminescence of nanosized polysilane photoconductors, incorporated into mesoporous silica

N. Ostapenko, N. Kotova, V. Lukashenko, G. Telbiz, S. Suto, A. Watanabe

研究成果: Article › 査読

1 被引用数 (Scopus)

抄録

The dependence of the low-temperature (5-150 K) photoluminescence spectra of poly(di-n-hexylsilane) (PDHS) incorporated into mesoporous silicas on sizes and a geometry of pores was investigated. It was shown that visible luminescence in nanosized PDHS is observed only when the polymer is incorporated into the hexagonal pores of 2.8 nm in diameter, but it is absent for the bulk film, dissolved polymer, and polymer incorporated into cubic pores of 2.8 nm in diameter or into hexagonal pores of 5.8 nm in diameter. We suggest that the appearance of visible luminescence in nanosized PDHS is connected with the transition from electronic states localized on the conformational defect of the polymer chain.

本文言語	English
ページ（範囲）	149-156
ページ数	8
ジャーナル	Molecular crystals and liquid crystals
巻	426
DOI	https://doi.org/10.1080/15421400590891047
出版ステータス	Published - 2005

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

文献へのアクセス

10.1080/15421400590891047

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引用スタイル

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abstract = "The dependence of the low-temperature (5-150 K) photoluminescence spectra of poly(di-n-hexylsilane) (PDHS) incorporated into mesoporous silicas on sizes and a geometry of pores was investigated. It was shown that visible luminescence in nanosized PDHS is observed only when the polymer is incorporated into the hexagonal pores of 2.8 nm in diameter, but it is absent for the bulk film, dissolved polymer, and polymer incorporated into cubic pores of 2.8 nm in diameter or into hexagonal pores of 5.8 nm in diameter. We suggest that the appearance of visible luminescence in nanosized PDHS is connected with the transition from electronic states localized on the conformational defect of the polymer chain.",

keywords = "Conformational defects, Mesoporous silica, Nanosized composites, Photoluminescence, Poly(di-n-hexylsilane), Size and geometry of the pore, X-ray diffraction",

author = "N. Ostapenko and N. Kotova and V. Lukashenko and G. Telbiz and S. Suto and A. Watanabe",

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T1 - Visible luminescence of nanosized polysilane photoconductors, incorporated into mesoporous silica

AU - Ostapenko, N.

AU - Kotova, N.

AU - Lukashenko, V.

AU - Telbiz, G.

AU - Suto, S.

AU - Watanabe, A.

PY - 2005

Y1 - 2005

N2 - The dependence of the low-temperature (5-150 K) photoluminescence spectra of poly(di-n-hexylsilane) (PDHS) incorporated into mesoporous silicas on sizes and a geometry of pores was investigated. It was shown that visible luminescence in nanosized PDHS is observed only when the polymer is incorporated into the hexagonal pores of 2.8 nm in diameter, but it is absent for the bulk film, dissolved polymer, and polymer incorporated into cubic pores of 2.8 nm in diameter or into hexagonal pores of 5.8 nm in diameter. We suggest that the appearance of visible luminescence in nanosized PDHS is connected with the transition from electronic states localized on the conformational defect of the polymer chain.

AB - The dependence of the low-temperature (5-150 K) photoluminescence spectra of poly(di-n-hexylsilane) (PDHS) incorporated into mesoporous silicas on sizes and a geometry of pores was investigated. It was shown that visible luminescence in nanosized PDHS is observed only when the polymer is incorporated into the hexagonal pores of 2.8 nm in diameter, but it is absent for the bulk film, dissolved polymer, and polymer incorporated into cubic pores of 2.8 nm in diameter or into hexagonal pores of 5.8 nm in diameter. We suggest that the appearance of visible luminescence in nanosized PDHS is connected with the transition from electronic states localized on the conformational defect of the polymer chain.

KW - Conformational defects

KW - Mesoporous silica

KW - Nanosized composites

KW - Photoluminescence

KW - Poly(di-n-hexylsilane)

KW - Size and geometry of the pore

KW - X-ray diffraction

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