Spectroscopic properties of poly(1,4-phenylenevinylene) and poly(2-methoxy-1,4-phenylenevinylene)

G. J. Lee; S. K. Yu; D. Kim; J. I. Lee; H. K. Shim

doi:10.1016/0379-6779(94)02516-2

Spectroscopic properties of poly(1,4-phenylenevinylene) and poly(2-methoxy-1,4-phenylenevinylene)

G. J. Lee, S. K. Yu, D. Kim, J. I. Lee, H. K. Shim

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

The spectroscopic properties of poly(1,4-phenylene vinylene) [PPV] and poly(2-methoxy -1,4-phenylene vinylene) [PMPV] in thin film were investigated with FT-IR, UV-VIS absorption, and photoluminescence. From FT-IR and polarized luminescence spectra of stretched films, we found that luminescences in PPV and PMPV were mainly due to the decay of an intra-chain exciton. Through the temperature dependent photoluminescence spectra, we found that the weakening f the exciton-phonon interaction on cooling results in the fluorescence linewidth narrowing, and there exists a thermally activated barrier in excited state potential well. The origins of the bathochromic shift of emission line on cooling are discussed.

Original language	English
Pages (from-to)	431-432
Number of pages	2
Journal	Synthetic Metals
Volume	69
Issue number	1-3
DOIs	https://doi.org/10.1016/0379-6779(94)02516-2
Publication status	Published - 1995 Mar 1

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/0379-6779(94)02516-2

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title = "Spectroscopic properties of poly(1,4-phenylenevinylene) and poly(2-methoxy-1,4-phenylenevinylene)",

abstract = "The spectroscopic properties of poly(1,4-phenylene vinylene) [PPV] and poly(2-methoxy -1,4-phenylene vinylene) [PMPV] in thin film were investigated with FT-IR, UV-VIS absorption, and photoluminescence. From FT-IR and polarized luminescence spectra of stretched films, we found that luminescences in PPV and PMPV were mainly due to the decay of an intra-chain exciton. Through the temperature dependent photoluminescence spectra, we found that the weakening f the exciton-phonon interaction on cooling results in the fluorescence linewidth narrowing, and there exists a thermally activated barrier in excited state potential well. The origins of the bathochromic shift of emission line on cooling are discussed.",

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T1 - Spectroscopic properties of poly(1,4-phenylenevinylene) and poly(2-methoxy-1,4-phenylenevinylene)

AU - Lee, G. J.

AU - Yu, S. K.

AU - Kim, D.

AU - Lee, J. I.

AU - Shim, H. K.

PY - 1995/3/1

Y1 - 1995/3/1

N2 - The spectroscopic properties of poly(1,4-phenylene vinylene) [PPV] and poly(2-methoxy -1,4-phenylene vinylene) [PMPV] in thin film were investigated with FT-IR, UV-VIS absorption, and photoluminescence. From FT-IR and polarized luminescence spectra of stretched films, we found that luminescences in PPV and PMPV were mainly due to the decay of an intra-chain exciton. Through the temperature dependent photoluminescence spectra, we found that the weakening f the exciton-phonon interaction on cooling results in the fluorescence linewidth narrowing, and there exists a thermally activated barrier in excited state potential well. The origins of the bathochromic shift of emission line on cooling are discussed.

AB - The spectroscopic properties of poly(1,4-phenylene vinylene) [PPV] and poly(2-methoxy -1,4-phenylene vinylene) [PMPV] in thin film were investigated with FT-IR, UV-VIS absorption, and photoluminescence. From FT-IR and polarized luminescence spectra of stretched films, we found that luminescences in PPV and PMPV were mainly due to the decay of an intra-chain exciton. Through the temperature dependent photoluminescence spectra, we found that the weakening f the exciton-phonon interaction on cooling results in the fluorescence linewidth narrowing, and there exists a thermally activated barrier in excited state potential well. The origins of the bathochromic shift of emission line on cooling are discussed.

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Spectroscopic properties of poly(1,4-phenylenevinylene) and poly(2-methoxy-1,4-phenylenevinylene)

Abstract

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