ICCAS OpenIR
Charge carrier injection and transport in PVK: Alq(3) blend films
Zhang, YG; Hu, YF; Chen, JS; Zhou, QG; Ma, DG
2003-08-21
Source PublicationJOURNAL OF PHYSICS D-APPLIED PHYSICS
ISSN0022-3727
Volume36Issue:16Pages:2006-2009
AbstractWe have investigated the current-voltage and electroluminescent (EL) characteristics of single-layer organic devices based on poly(9-vinylcarbazole) (PVK) and tris(8-hydroxyquinoline)aluminium (Alq(3)) blend with different PVK : Alq(3) concentrations. The experimental results from the observed thickness and temperature dependence clearly demonstrate that the current at low voltage is due to the holes injected at the anode and is space-charge limited, whereas the current at the high voltage that steeply increases is explained as the electron tunnelling injection at the cathode. The hole mobility is directly determined by space-charge-limited current at the low voltage region and decreases with increasing Alq(3) content in the blend. The EL efficiency shows concentration dependence, which is attributed to the change of the transport of electrons and holes in the blend film.
Indexed BySCI
Language英语
WOS IDWOS:000185123700013
PublisherIOP PUBLISHING LTD
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Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/80780
Collection中国科学院化学研究所
Corresponding AuthorMa, DG
AffiliationChinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Zhang, YG,Hu, YF,Chen, JS,et al. Charge carrier injection and transport in PVK: Alq(3) blend films[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS,2003,36(16):2006-2009.
APA Zhang, YG,Hu, YF,Chen, JS,Zhou, QG,&Ma, DG.(2003).Charge carrier injection and transport in PVK: Alq(3) blend films.JOURNAL OF PHYSICS D-APPLIED PHYSICS,36(16),2006-2009.
MLA Zhang, YG,et al."Charge carrier injection and transport in PVK: Alq(3) blend films".JOURNAL OF PHYSICS D-APPLIED PHYSICS 36.16(2003):2006-2009.
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