Blue polarized luminescence from organic material aligned by ion-beam-processed poly(3,4-ethylenedioxythiophene)

Wei Yang Chou, Shih Ting Lin, Horng Long Cheng, Fu Ching Tang, Kai Yun Chang, S. K. Hsu, Yu Shen Mai, Chia Wei Kuo, Chia Rong Sheu, Chi Chang Liao, Ten Chin Wen

Research output: Contribution to journalConference article

Abstract

We first demonstrated that an organic electroluminescence (EL) device based on conjugated polymers, which emitted polarized light, aligned by ion beam processed films of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS). Such devices would be particularly useful as backlights for conventional LCDs. Homogenous alignment of 4,4′-Bis[2-9(-ethyl-3- carbazoyl)vinylenyl]-1,1′-biphenyl (BECVB) films on thin layers of ion-beam-processed or rubbed PEDOT:PSS allows the construction of light-emitting diodes that emit polarized blue light (λem = 455 nm). The ion-beam-processed or rubbed PEDOT:PSS acts as an effective hole-injecting alignment layer. Polarized photoluminescence spectra demonstrated that the long axis of BECVB molecule was oriented along the ion-beam or rubbing direction. Owing to the orientation of BECVB molecules, polarized EL in the rubbing or ion-beam direction was observed in the device. The maximum photoluminescence polarization ratios of 5.6:1 and 3.2:1 were achieved for the devices aligned by rubbing and ion-beam methods, respectively.

Original languageEnglish
Article number58881C
Pages (from-to)1-9
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5888
DOIs
Publication statusPublished - 2005 Dec 29
EventPolarization Science and Remote Sensing II - San Diego, CA, United States
Duration: 2005 Aug 22005 Aug 4

Fingerprint

Luminescence
organic materials
Ion beams
ion beams
luminescence
Electroluminescence
Photoluminescence
electroluminescence
Alignment
alignment
Molecules
Conjugated Polymers
photoluminescence
Blue Light
Conjugated polymers
Thin Layer
Light polarization
Liquid crystal displays
Diode
polarized light

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

@article{f54cf13bb710481a8e21a19d058e25fd,
title = "Blue polarized luminescence from organic material aligned by ion-beam-processed poly(3,4-ethylenedioxythiophene)",
abstract = "We first demonstrated that an organic electroluminescence (EL) device based on conjugated polymers, which emitted polarized light, aligned by ion beam processed films of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS). Such devices would be particularly useful as backlights for conventional LCDs. Homogenous alignment of 4,4′-Bis[2-9(-ethyl-3- carbazoyl)vinylenyl]-1,1′-biphenyl (BECVB) films on thin layers of ion-beam-processed or rubbed PEDOT:PSS allows the construction of light-emitting diodes that emit polarized blue light (λem = 455 nm). The ion-beam-processed or rubbed PEDOT:PSS acts as an effective hole-injecting alignment layer. Polarized photoluminescence spectra demonstrated that the long axis of BECVB molecule was oriented along the ion-beam or rubbing direction. Owing to the orientation of BECVB molecules, polarized EL in the rubbing or ion-beam direction was observed in the device. The maximum photoluminescence polarization ratios of 5.6:1 and 3.2:1 were achieved for the devices aligned by rubbing and ion-beam methods, respectively.",
author = "Chou, {Wei Yang} and Lin, {Shih Ting} and Cheng, {Horng Long} and Tang, {Fu Ching} and Chang, {Kai Yun} and Hsu, {S. K.} and Mai, {Yu Shen} and Kuo, {Chia Wei} and Sheu, {Chia Rong} and Liao, {Chi Chang} and Wen, {Ten Chin}",
year = "2005",
month = "12",
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language = "English",
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pages = "1--9",
journal = "Proceedings of SPIE - The International Society for Optical Engineering",
issn = "0277-786X",
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}

Blue polarized luminescence from organic material aligned by ion-beam-processed poly(3,4-ethylenedioxythiophene). / Chou, Wei Yang; Lin, Shih Ting; Cheng, Horng Long; Tang, Fu Ching; Chang, Kai Yun; Hsu, S. K.; Mai, Yu Shen; Kuo, Chia Wei; Sheu, Chia Rong; Liao, Chi Chang; Wen, Ten Chin.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 5888, 58881C, 29.12.2005, p. 1-9.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Blue polarized luminescence from organic material aligned by ion-beam-processed poly(3,4-ethylenedioxythiophene)

AU - Chou, Wei Yang

AU - Lin, Shih Ting

AU - Cheng, Horng Long

AU - Tang, Fu Ching

AU - Chang, Kai Yun

AU - Hsu, S. K.

AU - Mai, Yu Shen

AU - Kuo, Chia Wei

AU - Sheu, Chia Rong

AU - Liao, Chi Chang

AU - Wen, Ten Chin

PY - 2005/12/29

Y1 - 2005/12/29

N2 - We first demonstrated that an organic electroluminescence (EL) device based on conjugated polymers, which emitted polarized light, aligned by ion beam processed films of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS). Such devices would be particularly useful as backlights for conventional LCDs. Homogenous alignment of 4,4′-Bis[2-9(-ethyl-3- carbazoyl)vinylenyl]-1,1′-biphenyl (BECVB) films on thin layers of ion-beam-processed or rubbed PEDOT:PSS allows the construction of light-emitting diodes that emit polarized blue light (λem = 455 nm). The ion-beam-processed or rubbed PEDOT:PSS acts as an effective hole-injecting alignment layer. Polarized photoluminescence spectra demonstrated that the long axis of BECVB molecule was oriented along the ion-beam or rubbing direction. Owing to the orientation of BECVB molecules, polarized EL in the rubbing or ion-beam direction was observed in the device. The maximum photoluminescence polarization ratios of 5.6:1 and 3.2:1 were achieved for the devices aligned by rubbing and ion-beam methods, respectively.

AB - We first demonstrated that an organic electroluminescence (EL) device based on conjugated polymers, which emitted polarized light, aligned by ion beam processed films of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS). Such devices would be particularly useful as backlights for conventional LCDs. Homogenous alignment of 4,4′-Bis[2-9(-ethyl-3- carbazoyl)vinylenyl]-1,1′-biphenyl (BECVB) films on thin layers of ion-beam-processed or rubbed PEDOT:PSS allows the construction of light-emitting diodes that emit polarized blue light (λem = 455 nm). The ion-beam-processed or rubbed PEDOT:PSS acts as an effective hole-injecting alignment layer. Polarized photoluminescence spectra demonstrated that the long axis of BECVB molecule was oriented along the ion-beam or rubbing direction. Owing to the orientation of BECVB molecules, polarized EL in the rubbing or ion-beam direction was observed in the device. The maximum photoluminescence polarization ratios of 5.6:1 and 3.2:1 were achieved for the devices aligned by rubbing and ion-beam methods, respectively.

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