ICCAS OpenIR
High efficient light-emitting diodes using polystyrene as matrix
He, GF; Liu, J; Yang, Y; Li, YF
2003-05-01
Source PublicationCHINESE SCIENCE BULLETIN
ISSN1001-6538
Volume48Issue:9Pages:853-855
AbstractHigh efficient polymer light-emitting diodes (PLEDs) were obtained by using a blend of conjugated polymer G-PF, a copolymer of fluorene and thiophene, and polystyrene (PS). The maximum electroluminescent (EL) efficiency of the device is 12 cd/A when G-PF/PS weight ratio is at 80/20, while that of pure G-PF device is 6.5 cd/A. Studies on photoluminescence and electroluminescence of the blends indicate that inter-chain interactions were tremendously suppressed due to the dilution effect. However, after PS concentration exceeds 20% the EL efficiency of the devices decreases with further increase of PS concentration. This may be due to the decrease of the recombination probability of electrons and holes with the excessive addition of PS insulator.
KeywordPolymer Light-emitting Diodes Quantum Efficiency Polystyrene Photoluminescence Electroluminescence
DOI10.1360/02wb0027
Indexed BySCI
Language英语
WOS IDWOS:000183995400003
PublisherSCIENCE CHINA PRESS
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Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/80084
Collection中国科学院化学研究所
Corresponding AuthorLi, YF
Affiliation1.Chinese Acad Sci, Ctr Mol Sci, Inst Chem, Beijing 100080, Peoples R China
2.Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Recommended Citation
GB/T 7714
He, GF,Liu, J,Yang, Y,et al. High efficient light-emitting diodes using polystyrene as matrix[J]. CHINESE SCIENCE BULLETIN,2003,48(9):853-855.
APA He, GF,Liu, J,Yang, Y,&Li, YF.(2003).High efficient light-emitting diodes using polystyrene as matrix.CHINESE SCIENCE BULLETIN,48(9),853-855.
MLA He, GF,et al."High efficient light-emitting diodes using polystyrene as matrix".CHINESE SCIENCE BULLETIN 48.9(2003):853-855.
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