ICCAS OpenIR
High power efficiency tandem organic light-emitting diodes based on bulk heterojunction organic bipolar charge generation layer
Chen, Yonghua1; Chen, Jiangshan1; Ma, Dongge1; Yan, Donghang1; Wang, Lixiang1; Zhu, Furong2
2011-06-13
Source PublicationAPPLIED PHYSICS LETTERS
ISSN0003-6951
Volume98Issue:24
AbstractThe significant enhancement in power efficiency of tandem organic light-emitting diodes (OLEDs) was achieved using bulk heterojunction organic bipolar charge generation layer (CGL), consisted of zinc phthalocyanine (ZnPc): fullerene (C(60)) blend. In addition to a significant enhancement in luminance and current efficiency this work yielded a maximum power efficiency of 21 lm W(-1) for a tandem OLED, notably almost two times higher than that of a single-unit device, with a maximum power efficiency of 10.1 lm W(-1). The enhancement in power efficiency at higher luminance is also over 50%. The remarkable enhancement in power efficiency has been attributed to the effective charge generation, transport and extraction due to the presence of interface-modified ZnPc:C(60) CGL in tandem OLEDs. Our results demonstrate that the bulk heterojunction, consisting of two matched n- and p-type organic semiconductors, is a promising bipolar CGL for high power efficiency tandem OLEDs. (C) 2011 American Institute of Physics. [doi:10.1063/1.3599557]
DOI10.1063/1.3599557
Indexed BySCI
Language英语
WOS IDWOS:000291803600097
PublisherAMER INST PHYSICS
Citation statistics
Cited Times:66[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/73650
Collection中国科学院化学研究所
Corresponding AuthorChen, Yonghua
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, Grad Sch, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Hong Kong Baptist Univ, Dept Phys, Ctr Adv Luminescence Mat, Kowloon Tong, Hong Kong, Peoples R China
Recommended Citation
GB/T 7714
Chen, Yonghua,Chen, Jiangshan,Ma, Dongge,et al. High power efficiency tandem organic light-emitting diodes based on bulk heterojunction organic bipolar charge generation layer[J]. APPLIED PHYSICS LETTERS,2011,98(24).
APA Chen, Yonghua,Chen, Jiangshan,Ma, Dongge,Yan, Donghang,Wang, Lixiang,&Zhu, Furong.(2011).High power efficiency tandem organic light-emitting diodes based on bulk heterojunction organic bipolar charge generation layer.APPLIED PHYSICS LETTERS,98(24).
MLA Chen, Yonghua,et al."High power efficiency tandem organic light-emitting diodes based on bulk heterojunction organic bipolar charge generation layer".APPLIED PHYSICS LETTERS 98.24(2011).
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