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1. 太原理工大学 材料科学与工程学院,山西 太原,030024
2. 太原理工大学 新材料界面科学与工程教育部重点实验室,山西 太原,030024
3. 太原理工大学 化学化工学院,山西 太原,030024
纸质出版日期:2015-6-3,
收稿日期:2015-3-11,
修回日期:2015-4-7,
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武聪伶, 陈柳青, 景姝等. 非掺杂式电荷生成层的结构设计及其在叠层OLED器件中的应用[J]. 发光学报, 2015,36(6): 679-684
WU Cong-ling, CHEN Liu-qing, JING Shu etc. Structure Design of Charge Generation Layer Without Doping and Its Application in Tandem OLED Devices[J]. Chinese Journal of Luminescence, 2015,36(6): 679-684
武聪伶, 陈柳青, 景姝等. 非掺杂式电荷生成层的结构设计及其在叠层OLED器件中的应用[J]. 发光学报, 2015,36(6): 679-684 DOI: 10.3788/fgxb20153606.0679.
WU Cong-ling, CHEN Liu-qing, JING Shu etc. Structure Design of Charge Generation Layer Without Doping and Its Application in Tandem OLED Devices[J]. Chinese Journal of Luminescence, 2015,36(6): 679-684 DOI: 10.3788/fgxb20153606.0679.
提出了一种非掺杂式电荷生成层:LiF/Al/C
60
/
m
-MTDATA
以其制作的叠层有机电致发光器件的最大电流效率和功率效率达到48.4 cd/A和19.4 lm/W
分别是单层发光器件的2.95倍和1.65倍。通过设计一系列含不同电荷生成层的倒置型器件
证实了电荷的生成和分离作用均发生在C
60
/
m
-MTDATA界面
同时通过对C
60
和Al的厚度以及Al蒸镀速率的研究
揭示了电荷生成和分离机制。
A new kind of charge generation layer (CGL) without doping: LiF/Al/C
60
/
m
-MTDATA was reported in this work
and a series of tandem OLED(TOLED) were fabricated using this new CGL. The TOLED offered a max current-efficiency of 48.4 cd/A and a power-efficiency of 19.4 lm/W
respectively
which increased by 2.95 and 1.65 times compared with the reference device. We also constructed a series of reversed devices with several CGLs
and by exploring the effect of the thicknesses of C
60
and Al films and the evaporating ratio of Al on the new CGL
charge generation and dissociation mechanism in the CGL were made clear.
有机电致发光器件电荷生成层叠层
organic light-emitting devicecharge generation layertandem
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Liao L S, Slusarek W K, Hatwar T K, et al. Tandem organic light-emitting diode using hexaazatriphenylene hexacarbonitrile in the intermediate connector [J]. Adv. Mater., 2008, 20(2):324-329.
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Chen Y H, Chen J S, Ma D G, et al. High power efficiency tandem organic light-emitting diodes based on bulk heterojunction organic bipolar charge generation layer [J]. Appl. Phys. Lett., 2011, 98(24):243309-1-3.
Tian M M, Liu X Y. High efficiency tandem organic light-emitting diode based on a new charge connecting layer [J]. Chin. J. Lumin.(发光学报), 2010, 31(5):651-654 (in Chinese).
Cheng Y M, Lu H H, Jen T H, et al. Role of the charge generation layer in tandem organic light-emitting diodes investigated by time-resolved electroluminescence spectroscopy [J]. J. Phys. Chem. C, 2011, 115:582-588.
Tsutsui T, Terai M. Electric field-assisted bipolar charge spouting in organic thin-film diodes [J]. Appl. Phys. Lett., 2004, 84(3):440-442.
Guo F W, Ma D G. White organic light-emitting diodes based on tandem structures [J]. Appl. Phys. Lett., 2005, 87(17):173510-1-3.
Kanno H, Holmes R J, Sun Y, et al. White stacked electrophosphorescent organic light-emitting devices employing MoO3 as a charge-generation layer [J]. Adv. Mater., 2006, 18(3):339-342.
Fung M K, Lau K M, Lai S L, et al. Charge generation layer in stacked organic light-emitting devices [J]. J. Appl. Phys., 2008, 104(3):034509-1-3.
Xiao J, Wang X X, Zhu H, et al. Efficiency enhancement utilizing hybrid charge generation layer in tandem organic light-emitting diodes [J]. Appl. Phys. Lett., 2012, 101(1):013301-1-3.
Wu X M, Bi W T, Hua Y L, et al. C60/N,N'-bis(1-naphthyl)-N, N'-diphenyl-1,1'-biphenyl-4,4'-diamine:MoO3 as the interconnection layer for high efficient tandem blue fluorescent organic light-emitting diodes [J]. Appl. Phys. Lett., 2013, 102(24):243302-1-3.
Zhang H M, Dai Y F, Ma D G. Al/WO3/Au as the interconnecting layer for efficient tandem white organic light-emitting diodes [J]. J. Phys. D: Appl. Phys., 2008, 41(10):102006-1-5.
Jiao B, Wu Z X, Yang Z Y, et al. Tandem organic light-emitting diodes with an effective nondoped charge-generation unit [J]. Phys. Stat. Sol. (a), 2013, 210(12):2583-2587.
Chen Y H, Wang Q, Chen J S, et al. Organic semiconductor heterojunction as charge generation layer in tandem organic light-emitting diodes for high power efficiency [J]. Org. Electron., 2012, 13(7):1121-1128.
Liu J, Huang S J, Shi X D, et al. Charge separation process in an ultrathin electron-injecting bilayer-assisted charge generation unit for tandem organic light-emitting diodes [J]. J. Phys. Chem. C, 2013, 117(27):13887-13893.
Narayan K, Varadharajaperumal S, Rao G M, et al. Effect of thickness variation of hole injection and hole blocking layers on the performance of fluorescent green organic light emitting diodes [J]. Curr. Appl. Phys., 2013, 13(1):18-25.
Yang J J, Suman C K, Kim J, et al. Fabrication of transparent Al:LiF composite/MoO3 interconnecting layers for tandem white organic light emitting devices [J]. J. Nanosci. Nanotechnol., 2014, 14(8):5898-5902.
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