Energy transfer in polyfluorene copolymer used for white-light organic light emitting device

Hua Wang; Yang Xu; Taiju Tsuboi; Huixia Xu; Yuling Wu; Zhuxia Zhang; Yanqin Miao; Yuying Hao; Xuguang Liu; Bingshe Xu; Wei Huang

doi:10.1016/j.orgel.2012.12.039

Energy transfer in polyfluorene copolymer used for white-light organic light emitting device

Hua Wang, Yang Xu, Taiju Tsuboi, Huixia Xu, Yuling Wu, Zhuxia Zhang, Yanqin Miao, Yuying Hao, Xuguang Liu, Bingshe Xu, Wei Huang

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

38 Scopus citations

Abstract

Luminescence properties of a type of polyfluorene copolymer (PFO-DBT5) used for white-light organic light emitting device (OLED) were studied and discussed, in which a very low concentration of 0.05 mol% 4,7-bithienyl-2,1,3- benzothiadiazole (DBT) molecules were inserted in polyfluorene chain as orange-light unit. From the spectroscopic analysis of PFO-DBT5 in solution and nanoparticles, it is concluded that inter-chain Förster energy transfer from polyfluorene segments to DBT units play major role in process of white-light emission of PFO-DBT5. By measurement of electroluminescent properties, it is found that annealing of PFO-DBT5 film in vacuum is favorable for improving white-light emission owing to enhancement in inter-chain Förster energy transfer. CIE coordinates (0.38, 0.33) were obtained under the annealing temperature of 140°C. It was found that the annealing temperature affects the luminance and efficiency of white-light OLED. The optimum annealing temperature was 100°C.

Original language	English
Pages (from-to)	827-838
Number of pages	12
Journal	Organic Electronics
Volume	14
Issue number	3
DOIs	https://doi.org/10.1016/j.orgel.2012.12.039
State	Published - Mar 2013
Externally published	Yes

Keywords

Förster energy transfer
OLED
Polyfluorene
Vacuum healing
White-light

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10.1016/j.orgel.2012.12.039

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@article{486207b4255c4bfa904f58528cf35d48,

title = "Energy transfer in polyfluorene copolymer used for white-light organic light emitting device",

abstract = "Luminescence properties of a type of polyfluorene copolymer (PFO-DBT5) used for white-light organic light emitting device (OLED) were studied and discussed, in which a very low concentration of 0.05 mol% 4,7-bithienyl-2,1,3- benzothiadiazole (DBT) molecules were inserted in polyfluorene chain as orange-light unit. From the spectroscopic analysis of PFO-DBT5 in solution and nanoparticles, it is concluded that inter-chain F{\"o}rster energy transfer from polyfluorene segments to DBT units play major role in process of white-light emission of PFO-DBT5. By measurement of electroluminescent properties, it is found that annealing of PFO-DBT5 film in vacuum is favorable for improving white-light emission owing to enhancement in inter-chain F{\"o}rster energy transfer. CIE coordinates (0.38, 0.33) were obtained under the annealing temperature of 140°C. It was found that the annealing temperature affects the luminance and efficiency of white-light OLED. The optimum annealing temperature was 100°C.",

keywords = "F{\"o}rster energy transfer, OLED, Polyfluorene, Vacuum healing, White-light",

author = "Hua Wang and Yang Xu and Taiju Tsuboi and Huixia Xu and Yuling Wu and Zhuxia Zhang and Yanqin Miao and Yuying Hao and Xuguang Liu and Bingshe Xu and Wei Huang",

year = "2013",

month = mar,

doi = "10.1016/j.orgel.2012.12.039",

language = "英语",

volume = "14",

pages = "827--838",

journal = "Organic Electronics",

issn = "1566-1199",

publisher = "Elsevier B.V.",

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T1 - Energy transfer in polyfluorene copolymer used for white-light organic light emitting device

AU - Wang, Hua

AU - Xu, Yang

AU - Tsuboi, Taiju

AU - Xu, Huixia

AU - Wu, Yuling

AU - Zhang, Zhuxia

AU - Miao, Yanqin

AU - Hao, Yuying

AU - Liu, Xuguang

AU - Xu, Bingshe

AU - Huang, Wei

PY - 2013/3

Y1 - 2013/3

N2 - Luminescence properties of a type of polyfluorene copolymer (PFO-DBT5) used for white-light organic light emitting device (OLED) were studied and discussed, in which a very low concentration of 0.05 mol% 4,7-bithienyl-2,1,3- benzothiadiazole (DBT) molecules were inserted in polyfluorene chain as orange-light unit. From the spectroscopic analysis of PFO-DBT5 in solution and nanoparticles, it is concluded that inter-chain Förster energy transfer from polyfluorene segments to DBT units play major role in process of white-light emission of PFO-DBT5. By measurement of electroluminescent properties, it is found that annealing of PFO-DBT5 film in vacuum is favorable for improving white-light emission owing to enhancement in inter-chain Förster energy transfer. CIE coordinates (0.38, 0.33) were obtained under the annealing temperature of 140°C. It was found that the annealing temperature affects the luminance and efficiency of white-light OLED. The optimum annealing temperature was 100°C.

AB - Luminescence properties of a type of polyfluorene copolymer (PFO-DBT5) used for white-light organic light emitting device (OLED) were studied and discussed, in which a very low concentration of 0.05 mol% 4,7-bithienyl-2,1,3- benzothiadiazole (DBT) molecules were inserted in polyfluorene chain as orange-light unit. From the spectroscopic analysis of PFO-DBT5 in solution and nanoparticles, it is concluded that inter-chain Förster energy transfer from polyfluorene segments to DBT units play major role in process of white-light emission of PFO-DBT5. By measurement of electroluminescent properties, it is found that annealing of PFO-DBT5 film in vacuum is favorable for improving white-light emission owing to enhancement in inter-chain Förster energy transfer. CIE coordinates (0.38, 0.33) were obtained under the annealing temperature of 140°C. It was found that the annealing temperature affects the luminance and efficiency of white-light OLED. The optimum annealing temperature was 100°C.

KW - Förster energy transfer

KW - OLED

KW - Polyfluorene

KW - Vacuum healing

KW - White-light

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U2 - 10.1016/j.orgel.2012.12.039

DO - 10.1016/j.orgel.2012.12.039

M3 - 文章

AN - SCOPUS:84875175882

SN - 1566-1199

VL - 14

SP - 827

EP - 838

JO - Organic Electronics

JF - Organic Electronics

IS - 3

ER -

Energy transfer in polyfluorene copolymer used for white-light organic light emitting device

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