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Observation of hole hopping via dopant in MoOx-doped organic semiconductors: Mechanism analysis and application for high performance organic light-emitting devices
Qiao, Xianfeng1; Chen, Jiangshan1; Li, Xinglin2; Ma, Dongge1
2010-05-15
Source PublicationJOURNAL OF APPLIED PHYSICS
ISSN0021-8979
Volume107Issue:10
AbstractConduction mechanism in molybdenum trioxide (MoOx)-doped hole- and electron-type organic semiconductors is investigated. The used hole-transporting materials are N, N'-diphenyl-N, N'-bis (1-naphthylphenyl)-1, 1'-biphen4, 4'-diamine, 4',4"-tri(N-carbazolyl)triphenylamine, 4, 4'-N, N-dicarbazole-biphenyl, and pentacene and the used electron-transporting material is (8-quinolinolato) aluminum (Alq(3)). It can be seen that the hole conductivity is significantly enhanced upon MoOx doping, and more importantly, dominant hole current could be realized in a typical electron-transport material Alq(3) by doping MoOx. Hence, high efficiency organic light-emitting devices can also be achieved even using MoOx-doped Alq3 film as hole transporting layer. The mechanism investigation indicates that the MoOx plays an important role in the hole transport. It is showed that the MoOx serves as the hole hopping sites, whereas the used organic materials serve as the transport medium and determine the magnitude of transport current. Furthermore, it is found that doping MoOx into the organic materials also reduces the energy and position disorders of the doped organic films, which are well demonstrated by the study on transport characteristics of the doped films at various temperatures. (C) 2010 American Institute of Physics. [doi:10.1063/1.3428374]
DOI10.1063/1.3428374
Indexed BySCI
Language英语
WOS IDWOS:000278182400171
PublisherAMER INST PHYSICS
Citation statistics
Cited Times:33[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/69226
Collection中国科学院化学研究所
Corresponding AuthorQiao, Xianfeng
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Grad Sch, Changchun 130022, Peoples R China
2.Chinese Acad Sci, Changchun Inst Appl Chem, Natl Analyt Res Ctr Electrochem & Spect, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Qiao, Xianfeng,Chen, Jiangshan,Li, Xinglin,et al. Observation of hole hopping via dopant in MoOx-doped organic semiconductors: Mechanism analysis and application for high performance organic light-emitting devices[J]. JOURNAL OF APPLIED PHYSICS,2010,107(10).
APA Qiao, Xianfeng,Chen, Jiangshan,Li, Xinglin,&Ma, Dongge.(2010).Observation of hole hopping via dopant in MoOx-doped organic semiconductors: Mechanism analysis and application for high performance organic light-emitting devices.JOURNAL OF APPLIED PHYSICS,107(10).
MLA Qiao, Xianfeng,et al."Observation of hole hopping via dopant in MoOx-doped organic semiconductors: Mechanism analysis and application for high performance organic light-emitting devices".JOURNAL OF APPLIED PHYSICS 107.10(2010).
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