Poly(4-vinyltriphenylamine): Optical, electrochemical properties and its new application as a host material of green phosphorescent Ir(ppy)3 dopant
Publication type: Journal Article
Publication date: 2008-08-01
scimago Q1
wos Q2
SJR: 0.787
CiteScore: 8.3
Impact factor: 4.6
ISSN: 03796779
Materials Chemistry
Metals and Alloys
Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanical Engineering
Mechanics of Materials
Abstract
Vinyl polymer PTPA containing pendant triphenylamine chromophore, which possesses hole-transport characteristics, was used as a host material in green phosphorescent light-emitting diodes. The PL spectrum of PTPA showed an intrinsic peak (375 nm) attributed to triphenylamine groups and an excimer emission (440 nm). The PL and EL spectra of the blends [PTPA:Ir( ppy ) 3 ] showed dominant green emission attributed to Ir( ppy ) 3 due to efficient energy transfer from PTPA to Ir( ppy ) 3 . The HOMO level of PTPA, estimated from cyclic voltammetric data, was −5.36 eV, which is higher than −5.8 eV of PVK owing to hole-affinity characteristics of the pendant triphenylamine groups. The best performance was obtained with the EL device (ITO/PEDOT:PSS/PTPA:Ir( ppy ) 3 (1 wt%):PBD (40 wt%)/Ca/Al), the maximal luminance and the maximal luminance efficiency were 8358 cd/m 2 and 4.5 cd/A, respectively. The present study suggests that the polymer PTPA is versatile host materials for green phosphorescent polymer light-emitting diodes applications.
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Total citations:
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Yeh K., Lee C., Chen Y. Poly(4-vinyltriphenylamine): Optical, electrochemical properties and its new application as a host material of green phosphorescent Ir(ppy)3 dopant // Synthetic Metals. 2008. Vol. 158. No. 14. pp. 565-571.
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Yeh K., Lee C., Chen Y. Poly(4-vinyltriphenylamine): Optical, electrochemical properties and its new application as a host material of green phosphorescent Ir(ppy)3 dopant // Synthetic Metals. 2008. Vol. 158. No. 14. pp. 565-571.
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RIS
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TY - JOUR
DO - 10.1016/j.synthmet.2008.04.001
UR - https://doi.org/10.1016/j.synthmet.2008.04.001
TI - Poly(4-vinyltriphenylamine): Optical, electrochemical properties and its new application as a host material of green phosphorescent Ir(ppy)3 dopant
T2 - Synthetic Metals
AU - Yeh, KT
AU - Lee, Chih-Hsin
AU - Chen, Yun
PY - 2008
DA - 2008/08/01
PB - Elsevier
SP - 565-571
IS - 14
VL - 158
SN - 0379-6779
ER -
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BibTex (up to 50 authors)
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@article{2008_Yeh,
author = {KT Yeh and Chih-Hsin Lee and Yun Chen},
title = {Poly(4-vinyltriphenylamine): Optical, electrochemical properties and its new application as a host material of green phosphorescent Ir(ppy)3 dopant},
journal = {Synthetic Metals},
year = {2008},
volume = {158},
publisher = {Elsevier},
month = {aug},
url = {https://doi.org/10.1016/j.synthmet.2008.04.001},
number = {14},
pages = {565--571},
doi = {10.1016/j.synthmet.2008.04.001}
}
Cite this
MLA
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Yeh, KT, et al. “Poly(4-vinyltriphenylamine): Optical, electrochemical properties and its new application as a host material of green phosphorescent Ir(ppy)3 dopant.” Synthetic Metals, vol. 158, no. 14, Aug. 2008, pp. 565-571. https://doi.org/10.1016/j.synthmet.2008.04.001.