IEICE TRANSACTIONS on Electronics
Photoirradiation Effects on Light-Emitting Devices Based on Poly (p-phenylene vinylene) Derivative
Summary :
Photoirradiation effects on the polymer light-emitting devices (PLEDs) with a semitransparent-Al cathode have been studied. A light-emitting polymers, a poly (p-phenylene vinylene) derivative MDOPPV has been used in this study. Upon photoirradiation, the emission intensity at a constant voltage was rapidly decreased. However, the quantum efficiency of electroluminescence remained constant, indicating the spatial separation between recombination zone and photooxidized defects. On the other hand, the quantum efficiency of photoluminescence rapidly dropped upon similar photoirradation. These can be understood by taking the difference in the spatial distribution and the origin of excitons between electro- and photo-luminescence processes. It was also found that the photooxidation rate of the polymer film whose thickness is ca. 100 nm does not have thickness dependence, suggesting that the photooxidation of the polymer proceeds uniformly throughout the device.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E85-C No.6 pp.1227-1232
- Publication Date
- 2002/06/01
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- Special Section PAPER (Special Issue on Recent Progress in Organic Molecular Electronics)
- Category
- Electronic Devices
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Kazuya TADA, Mitsuyoshi ONODA, "Photoirradiation Effects on Light-Emitting Devices Based on Poly (p-phenylene vinylene) Derivative" in IEICE TRANSACTIONS on Electronics,
vol. E85-C, no. 6, pp. 1227-1232, June 2002, doi: .
Abstract: Photoirradiation effects on the polymer light-emitting devices (PLEDs) with a semitransparent-Al cathode have been studied. A light-emitting polymers, a poly (p-phenylene vinylene) derivative MDOPPV has been used in this study. Upon photoirradiation, the emission intensity at a constant voltage was rapidly decreased. However, the quantum efficiency of electroluminescence remained constant, indicating the spatial separation between recombination zone and photooxidized defects. On the other hand, the quantum efficiency of photoluminescence rapidly dropped upon similar photoirradation. These can be understood by taking the difference in the spatial distribution and the origin of excitons between electro- and photo-luminescence processes. It was also found that the photooxidation rate of the polymer film whose thickness is ca. 100 nm does not have thickness dependence, suggesting that the photooxidation of the polymer proceeds uniformly throughout the device.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e85-c_6_1227/_p
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@ARTICLE{e85-c_6_1227,
author={Kazuya TADA, Mitsuyoshi ONODA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Photoirradiation Effects on Light-Emitting Devices Based on Poly (p-phenylene vinylene) Derivative},
year={2002},
volume={E85-C},
number={6},
pages={1227-1232},
abstract={Photoirradiation effects on the polymer light-emitting devices (PLEDs) with a semitransparent-Al cathode have been studied. A light-emitting polymers, a poly (p-phenylene vinylene) derivative MDOPPV has been used in this study. Upon photoirradiation, the emission intensity at a constant voltage was rapidly decreased. However, the quantum efficiency of electroluminescence remained constant, indicating the spatial separation between recombination zone and photooxidized defects. On the other hand, the quantum efficiency of photoluminescence rapidly dropped upon similar photoirradation. These can be understood by taking the difference in the spatial distribution and the origin of excitons between electro- and photo-luminescence processes. It was also found that the photooxidation rate of the polymer film whose thickness is ca. 100 nm does not have thickness dependence, suggesting that the photooxidation of the polymer proceeds uniformly throughout the device.},
keywords={},
doi={},
ISSN={},
month={June},}
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TY - JOUR
TI - Photoirradiation Effects on Light-Emitting Devices Based on Poly (p-phenylene vinylene) Derivative
T2 - IEICE TRANSACTIONS on Electronics
SP - 1227
EP - 1232
AU - Kazuya TADA
AU - Mitsuyoshi ONODA
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E85-C
IS - 6
JA - IEICE TRANSACTIONS on Electronics
Y1 - June 2002
AB - Photoirradiation effects on the polymer light-emitting devices (PLEDs) with a semitransparent-Al cathode have been studied. A light-emitting polymers, a poly (p-phenylene vinylene) derivative MDOPPV has been used in this study. Upon photoirradiation, the emission intensity at a constant voltage was rapidly decreased. However, the quantum efficiency of electroluminescence remained constant, indicating the spatial separation between recombination zone and photooxidized defects. On the other hand, the quantum efficiency of photoluminescence rapidly dropped upon similar photoirradation. These can be understood by taking the difference in the spatial distribution and the origin of excitons between electro- and photo-luminescence processes. It was also found that the photooxidation rate of the polymer film whose thickness is ca. 100 nm does not have thickness dependence, suggesting that the photooxidation of the polymer proceeds uniformly throughout the device.
ER -
English
