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 language | English |
|---|---|
| Article number | 58881C |
| Pages (from-to) | 1-9 |
| Number of pages | 9 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 5888 |
| DOIs | |
| Publication status | Published - 2005 Dec 29 |
| Event | Polarization Science and Remote Sensing II - San Diego, CA, United States Duration: 2005 Aug 2 → 2005 Aug 4 |
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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
}
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 journal › Conference 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.
UR - http://www.scopus.com/inward/record.url?scp=29244475369&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=29244475369&partnerID=8YFLogxK
U2 - 10.1117/12.614657
DO - 10.1117/12.614657
M3 - Conference article
AN - SCOPUS:29244475369
VL - 5888
SP - 1
EP - 9
JO - Proceedings of SPIE - The International Society for Optical Engineering
JF - Proceedings of SPIE - The International Society for Optical Engineering
SN - 0277-786X
M1 - 58881C
ER -