ICCAS OpenIR
On the origin of efficient electron injection at phosphonate-functionalized polyfluorene/aluminum interface in efficient polymer light-emitting diodes
Zhang, Baohua1; Qin, Chuanjiang1; Niu, Xiaodi1; Xie, Zhiyuan1; Cheng, Yanxiang1; Wang, Lixiang1; Li, Xinglin2
2010-07-26
Source PublicationAPPLIED PHYSICS LETTERS
ISSN0003-6951
Volume97Issue:4
AbstractUltraviolet and x-ray photoelectron spectroscopy are used to explore the underlying mechanism of efficient electron injection at phosphonate-functionalized polyfluorene (PF-EP)/Al interface in polymer light-emitting diodes (PLEDs). It is proposed that both the favorable interfacial dipoles of phosphonate groups and intense coordination interaction between the phosphonate groups and Al at PF-EP/Al interface are responsible for the efficient electron injection. As a result, the PLEDs with PF-EP/Al cathode demonstrate superior performance compared to the PLEDs with Ba or Ca cathode due to efficient electron injection and suppressed exciton-quenching at cathode interface. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3475021]
KeywordAluminium Cathodes Excitons Organic Light Emitting Diodes Polymers Quenching (Thermal) Ultraviolet Spectra X-ray Photoelectron Spectra
DOI10.1063/1.3475021
Indexed BySCI
Language英语
WOS IDWOS:000281059200098
PublisherAMER INST PHYSICS
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/69772
Collection中国科学院化学研究所
Corresponding AuthorZhang, Baohua
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Chinese Acad Sci, Changchun Inst Appl Chem, Natl Analyt Ctr Electrochem & Spect, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Baohua,Qin, Chuanjiang,Niu, Xiaodi,et al. On the origin of efficient electron injection at phosphonate-functionalized polyfluorene/aluminum interface in efficient polymer light-emitting diodes[J]. APPLIED PHYSICS LETTERS,2010,97(4).
APA Zhang, Baohua.,Qin, Chuanjiang.,Niu, Xiaodi.,Xie, Zhiyuan.,Cheng, Yanxiang.,...&Li, Xinglin.(2010).On the origin of efficient electron injection at phosphonate-functionalized polyfluorene/aluminum interface in efficient polymer light-emitting diodes.APPLIED PHYSICS LETTERS,97(4).
MLA Zhang, Baohua,et al."On the origin of efficient electron injection at phosphonate-functionalized polyfluorene/aluminum interface in efficient polymer light-emitting diodes".APPLIED PHYSICS LETTERS 97.4(2010).
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