Tuning and enhancing photoluminescence of light-emitting polymer nanotubes through electron-beam irradiation

Young Ki Hong; Dong Hyuk Park; Soung Kyu Park; Hugeun Song; Dae Chul Kim; Jeongyong Kim; Young Hwan Han; Ok Kyung Park; Byung Cheol Lee; Jinsoo Joo

doi:10.1002/adfm.200801088

Tuning and enhancing photoluminescence of light-emitting polymer nanotubes through electron-beam irradiation

Young Ki Hong, Dong Hyuk Park, Soung Kyu Park, Hugeun Song, Dae Chul Kim, Jeongyong Kim, Young Hwan Han, Ok Kyung Park, Byung Cheol Lee, Jinsoo Joo

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

28 Citations (Scopus)

Abstract

A new method for the tuning and enhancing photoluminescence (PL) characteristics of light emitting poly (3-methyhhiopnehe) (P3MT) nanotubes through E-beam irradiation under atmospheric environments is reported. An E-beam generated from a linear electron accelerator (1 MeV, 1.6 × 10 ¹³-8.0 10¹⁶ electrons cm^-2) is irradiated onto P3MT nanotubes including an Al₂O₃ template. From laser confocal microscope (LCM) PL experiments, significant enhancements in the PL intensity - up to about 90 times of an isolated single strand of the E-beam irradiated P3MT nanotubes - are observed. The luminescent color of the P3MT nanotubes changes from green to red color depending on the variation of E-beam dosage. These results might originate from the de-doping effect and the conformational modification through E-beam irradiations. Conformational changes of the E-beam irradiated P3MT nanotubes are confirmed by LCM single Raman and ultraviolet-visible (UV/Vis) absorption spectra. From UV/Vis absorption spectra, it is observed that the π-π transition peak and the doping induced bipolaren peaks of the P3MT nanotubes dramatically vary with E-beam irradiating conditions.

Original language	English
Pages (from-to)	567-572
Number of pages	6
Journal	Advanced Functional Materials
Volume	19
Issue number	4
DOIs	https://doi.org/10.1002/adfm.200801088
Publication status	Published - 2009 Feb 24

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics

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title = "Tuning and enhancing photoluminescence of light-emitting polymer nanotubes through electron-beam irradiation",

abstract = "A new method for the tuning and enhancing photoluminescence (PL) characteristics of light emitting poly (3-methyhhiopnehe) (P3MT) nanotubes through E-beam irradiation under atmospheric environments is reported. An E-beam generated from a linear electron accelerator (1 MeV, 1.6 × 10 13-8.0 1016 electrons cm-2) is irradiated onto P3MT nanotubes including an Al2O3 template. From laser confocal microscope (LCM) PL experiments, significant enhancements in the PL intensity - up to about 90 times of an isolated single strand of the E-beam irradiated P3MT nanotubes - are observed. The luminescent color of the P3MT nanotubes changes from green to red color depending on the variation of E-beam dosage. These results might originate from the de-doping effect and the conformational modification through E-beam irradiations. Conformational changes of the E-beam irradiated P3MT nanotubes are confirmed by LCM single Raman and ultraviolet-visible (UV/Vis) absorption spectra. From UV/Vis absorption spectra, it is observed that the π-π transition peak and the doping induced bipolaren peaks of the P3MT nanotubes dramatically vary with E-beam irradiating conditions.",

author = "Hong, {Young Ki} and Park, {Dong Hyuk} and Park, {Soung Kyu} and Hugeun Song and Kim, {Dae Chul} and Jeongyong Kim and Han, {Young Hwan} and Park, {Ok Kyung} and Lee, {Byung Cheol} and Jinsoo Joo",

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AU - Kim, Jeongyong

AU - Han, Young Hwan

AU - Park, Ok Kyung

AU - Lee, Byung Cheol

AU - Joo, Jinsoo

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N2 - A new method for the tuning and enhancing photoluminescence (PL) characteristics of light emitting poly (3-methyhhiopnehe) (P3MT) nanotubes through E-beam irradiation under atmospheric environments is reported. An E-beam generated from a linear electron accelerator (1 MeV, 1.6 × 10 13-8.0 1016 electrons cm-2) is irradiated onto P3MT nanotubes including an Al2O3 template. From laser confocal microscope (LCM) PL experiments, significant enhancements in the PL intensity - up to about 90 times of an isolated single strand of the E-beam irradiated P3MT nanotubes - are observed. The luminescent color of the P3MT nanotubes changes from green to red color depending on the variation of E-beam dosage. These results might originate from the de-doping effect and the conformational modification through E-beam irradiations. Conformational changes of the E-beam irradiated P3MT nanotubes are confirmed by LCM single Raman and ultraviolet-visible (UV/Vis) absorption spectra. From UV/Vis absorption spectra, it is observed that the π-π transition peak and the doping induced bipolaren peaks of the P3MT nanotubes dramatically vary with E-beam irradiating conditions.

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Tuning and enhancing photoluminescence of light-emitting polymer nanotubes through electron-beam irradiation

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