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| Study on Blue Dopant Ratio on the Performance of TOP-Emitting White OLED Microdisplays |
| DUAN Liang-fei1, WANG Guang-hua1, 2, QIAN Fu-li1, GAO Si-bo1, DUAN Yu1, 2*, JI Hua-xia1, FAN Heng1 |
1. Yunnan Olightek Opto-Electronic Technology Co., Ltd., Kunming 650223, China
2. Kunming Institute of Physics, Kunming 650223, China |
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Abstract White OLED microdisplays have an important application in the field of information display. In this paper, The vacuum coating system is used to sequentially deposit an Ag/ITO composite film as the anode structure and Mg: Ag composite film is co-distilled to form a translucent cathode structure. NPB is used to hole transport material and yellow light host material, rubrene as yellow light dopant, AND as blue host material, DSA-Ph as blue light dopant and Alq3 as electron transport material. The white OLED microdisplay structure with blue and yellow complementary colors prepared by co-evaporation is Ag/ITO/NPB/NPB∶rubrene (1.5%)/ADN∶DSA-Ph(x%/x=2, 5, 8)/Alq3/Mg∶Ag. The photoelectric performance of the device was characterized by a spectral testing system consisting of Photo Research PR655 spectrometer and Keithley 2400 program-controlled power supply. The effect of blue light doping ratio on the performance of white OLED microdisplay was studied. The result shows that with the increase of blue doping ratio, the brightness of white OLED microdisplay increases first and then decreases, the blue and yellow peaks shift to a certain extent, the color coordinates have a certain drift aod the blue color purity increases. The performances of white OLED microdisplays can be controlled by doping material ratio. The optimized emitting structure of white OLED microdisplay is NPB: rubrene (1.5%) /ADN: DSA-Ph (5%), The device brightness is 3 679 cd·m-2 and the CIE coordinates is (0.263, 0.355) with the driving voltage being 5.0 V.
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Received: 2018-07-25
Accepted: 2018-11-09
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Corresponding Authors:
DUAN Yu
E-mail: duanyu@oleid.com
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[1] WANG Xu-peng, MI Bao-xiu, GAO Zhi-qiang(王旭鹏，密保秀，高志强). Acta Physica Sinica(物理学报)，2011，60(8): 843.
[2] LIU Bai-quan, GAO Dong-yu, WANG Jian-bin(刘佰全，高栋雨，王剑斌). Acta Physico-Chimica Sinica(物理化学学报)，2015，31（10）：1823.
[3] Xie Guohua，Zhang Zhensong，Xue Qin. Organic Electronics, 2010, 11(12): 2055.
[4] Richter B, Vogel U, Wartenberg P. OLED-on-CMOS Based Bidirectional Microdisplay for Near-to-Eye and Sensor Applications. Semiconductor Conference Dresden IEEE, 2011. 1.
[5] Chang C H, Tien K C, Chen C C. Organic Electronics, 2010, 11(3): 412.
[6] Zhou J, Ai N, Wang L. Organic Electronics, 2011, 12(4): 648.
[7] Chang C H, Ho C L, Chang Y S. Journal of Materials Chemistry C, 2013, 1(15): 2639.
[8] Niu X D, Zhang B H, Xie Z Y, et al. Appl. Phys. Lett., 2010, 96(7): 073303.
[9] MA Ying, HAN Wei, ZHANG Fang-hui, et al(马 颖, 韩 薇, 张方辉, 等). Chin. J. Lig. Crys. Disp.(液晶与显示)，2011，26(1)：40.
[10] Chang Chih-Hao, Cheng Hsing-Chieh, Lu Yin-Jui. Organic Electronics, 2010, 11(02)：247.
[11] Jou Jwo-Huei, Chou Yi-Chieh, Shen Shih-Ming. Journal of Materials Chemistry, 2011, 21(46): 18523.
[12] Kalinowski J, Cocchi M, Virgili D, et al. Advanced Materials, 2007, 19(22): 4000. |
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