水溶性CuPc旋涂转速及退火方式对蓝色有机电致发光器件性能的影响

高利岩; 赵谡玲; 徐征; 张福俊; 孙钦军; 张天慧; 闫光; 徐叙瑢

doi:10.7498/aps.60.037203

摘要

本文以Be(PP)2为发光层、水溶性酞菁铜(WS-CuPc)为空穴注入层、NPB为空穴传输层,制备了结构为ITO/WS-CuPc/NPB/Be(PP)2/LiF/Al的蓝色有机发光二极管(OLEDs).研究了WS-CuPc不同旋涂转速对器件性能的影响.并在WS-CuPc最佳旋涂转速的基础上,进一步研究了WS-CuPc薄膜不同退火方式对器件性能的影响.实验中,对WS-CuPc层采用了一种新的退火方式,即对ITO玻璃衬底先加热后旋涂WS-CuPc层,并与传统退火方式

关键词:

Abstract

Investigated in this work are the effects of the spin-coating rate of water-soluble copper phthalocyanine (WS-CuPc) and the annealing method of WS-CuPc films obtained at the optimal spin-coating rate on the performances of blue organic light-emitting devices (OLEDs). The OLEDs, eack with a configuration of ITO/WS-CuPc/NPB/Be(PP)2/LiF/Al, are fabricated by using WS-CuPc as hole injection layer, NPB as hole transport layer and Be(PP)2 as emission layer separately. In our experiments, a new annealing method of WS-CuPc is used first for heating the ITO glass, and then for spin-coating the WS-CuPc. The performances of the device prepared with the new annealing method are compared with those of the devices prepared with the traditional annealing method or no annealing treatment. And the effects of different annealing treatments on the surface topography are analyzed by atomic force microscope (AFM). The experimental results demonstrate that there exists an optimal spin-coating rate of WS-CuPc, about 3000 r/min. Based on the optimal spin-coating rate of WS-CuPc, the roughness of the film prepared with the new annealing method is lowest and the performances of the device are best.

Keywords:

作者及机构信息

1.
北京交通大学光电子技术研究所,北京交通大学发光与光信息技术教育部重点实验室,北京 100044

基金项目: 国家自然科学基金(批准号:10974013,10804006,10774013),教育部博士点基金(批准号:20090009110027,20070004024),北京市自然科学基金(批准号:1102028),国家杰出青年科学基金(批准号:60825407),国家重点基础研究发展计划(批准号:2010CB327705),优秀博士生科技创新基金(批准号:141106522)资助的课题.

Authors and contacts

1.
Institude of Optoelectronics Technology, Beijing Jiaotong University, Key Laboratory of Luminescence and Optical Information (Beijing Jiaotong University), Ministry of Education, Beijing 100044,China

参考文献

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施引文献

[1]	Chu T Y, Chen J F, Chen S Y, Chen C J, Chen C H 2006 Appl. Phys. Lett. 89 053503
[2]	Zou J H, Lan L F, Xu R X, Yang W, Peng J B 2010 Acta Phys. Sin. 59 1275 (in Chinese) [邹建华、兰林锋、徐瑞霞、杨伟、彭俊彪 2010 物理学报 59 1275]
[3]	Chen F P, Xu B, Zhao Z J, Tian W J, Lu P 2010 Chin. Phys. B 19 037801
[4]	Wang B Z, Zhang A Q, Wu H B, Yang W, Wen S S 2010 Acta Phys. Sin. 59 4240 (in Chinese) [王保争、张安琪、吴宏滨、杨伟、文尚胜 2010 物理学报 59 4240]
[5]	Liu S W, Huang C A, Lee J H, Yang K H , Chen C C, Chang Y 2004 Thin Solid Films 453-454 312
[6]	Yan G, Zhao S L, Xu Z, Zhang F J, Kong C, Zhu H N, Song D D, Xu X R 2010 Chin. Phys. B 19 037804
[7]	Joo C W, Jeon S O, Yook S K, Lee J Y 2009 J. Phys. D: Appl. Phys. 42 105115
[8]	Wei B, Liao Y J, Liu J Z, Lu L, Cao J, Wang J, Zhang J H 2010 Chin. Phys. B 19 037105
[9]	Wang J, Yu J S, Li L, Wang T, Yuan K, Jiang Y D 2008 Appl. Phys. Lett. 92 133308
[10]	Sedat N, Hilmi V D 2009 Appl. Phys. Lett. 95 151111
[11]	Li Y F, Li F, Zhang J H, Wang C L, Zhu S J, Yu H J, Wang Z H, Yang B 2010 Appl. Phys. Lett. 96 153305
[12]	Niu L B, Guan Y X 2009 Acta Phys. Sin. 58 4931 (in Chinese) [牛连斌、关云霞 2009 物理学报 58 4931]
[13]	Lee J H, Lee J I, Lee J Y, Chu H Y 2009 Appl. Phys. Lett. 95 253304
[14]	Liu D A, Fina M, Guo J H, Chen X B, Liu G, Johnson S G, Mao S S 2009 Appl. Phys. Lett. 95 013110
[15]	Ou E C, Hu L B, Raymond G C R, Soo O K, Pan J S, Zheng Z, Park Y B, Hecht D, Irvin G, Drzaic P, Gruner G 2009 ACS Nano 3 2258
[16]	Zhang W, Yu J S, Huang J, Jiang Y D, Zhang Q, Cao K L 2010 Chin. Phys. B 19 047802
[17]	Jin J K, Kwon S K, Kim Y H, Shin D C, You H, Jung H T 2009 Macromolecules 42 6339
[18]	Zou Y, Deng Z B, Lv Z Y, Chen Z, Xu D H, Chen Y L, Yin Y H, Du H L, Wang Y S 2010 J. Lumin. 130 959
[19]	Yang S Y, Du W S, Qi J R, Lou Z D 2009 Acta Phys. Sin. 58 3427 (in Chinese) [杨盛谊、杜文树、齐洁茹、娄志东 2009 物理学报 58 3427]
[20]	Kim J S, Cacialli F, Cola A, Gigli G, Cingolani R 1999 Appl. Phys. Lett. 75 19
[21]	Tadayyon S M, Grandin H M, Gri?ths K, Norton P R, Aziz H, Popovic Z D 2004 Org. Electron. 5 157
[22]	Van Slyke S A, Chen C H, Tang C W 1996 Appl. Phys. Lett. 69 2160
[23]	Yamashita K, Mori T, Mizutani T, Miyazaki H, Takeda T 2000 Thin Solid Films 363 33
[24]	Scott J C, Kaufman J H, Brock P J, DiPietro R, Salem J, Goitia J A 1996 J. Appl. Phys. 79 2745
[25]	Wang Y, Chang C P, Tian H 2002 Dyes and Pigments 54 265

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