Efficient and Low-voltage Phosphorescent Organic Light-emitting Devices Based on Blue Iridium Complex Host

doi:10.1007/s40242-015-5243-7

Chemical Research in Chinese Universities ›› 2015, Vol. 31 ›› Issue (4): 569-572.doi: 10.1007/s40242-015-5243-7

• Articles • Previous Articles Next Articles

Efficient and Low-voltage Phosphorescent Organic Light-emitting Devices Based on Blue Iridium Complex Host

YU Jing, YIN Yongming, XIE Wenfa, ZHANG Letian

State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, P. R. China

Received:2015-06-18 Revised:2015-06-30 Online:2015-08-01 Published:2015-07-06
Contact: ZHANG Letian E-mail:zlt@jlu.edu.cn
Supported by:
Supported by the National Natural Science Foundation of China(Nos.61474054, 61475060, 61177026)

Abstract

Abstract:

By adopting a phosphorescent host/guest system consisting of blue iridium complex as host and a series of phosphorescent dyes as guest, efficient and low-voltage monochromic organic light-emitting devices(OLEDs) were fabricated. The devices with blue iridium host have higher power efficiency than the device with the conventional host 4,4'-N,N'-dicarbazole-biphenyl. The enhancement of the maximum power efficiency in green phosphorescent device can reach 37.2%. Dichromatic white OLED could be achieved by simply adjusting the concentration of the orange dyes. At a brightness of 1000 cd/m², the power efficiency of the white device is 8.4 lm/W with a color rendering index of 76.

Key words: Organic light-emitting device, Blue iridium complex host, Low-voltage

YU Jing, YIN Yongming, XIE Wenfa, ZHANG Letian. Efficient and Low-voltage Phosphorescent Organic Light-emitting Devices Based on Blue Iridium Complex Host[J]. Chemical Research in Chinese Universities, 2015, 31(4): 569-572.

References

[1] Baldo M. A., O'Brien D. F., You Y., Shoustikov A., Sibley S., Thompson M. E., Forrest S. R., Nature, 1998, 395, 151
[2] O'Brien D. F., Baldo M. A., Thompson M. E., Forrest S. R., Appl. Phys. Lett., 1998, 74, 442
[3] Yuan W., Ren Q. J., Sun H. D., Li H., Cheng Y. X., Ma D. G., Chem. J. Chinese Universities, 2014, 35(6), 1229
[4] Baldo M. A., Thompson M. E., Forrest S. R., Nature, 2000, 403, 750
[5] Dai G. Z., Li H. J., Pan Y. Z., Dai X. Y., Xie Q., Chin. Phys. B, 2005,14, 02590
[6] Baldo M. A., Lamansky S., Burrows P. E., Thompson M. E., Forrest S. R., Appl. Phys. Lett., 1999, 75, 4
[7] Liu J., Chen H. B., Liu S. G., Chem. Res. Chinese Universities, 2012, 28(4), 572
[8] Tsuboyama A., Iwasaki H., Furugori M., Mukaide T., Kamatani J., Igawa S., Moriyama T., Miura S., Takiguchi T., Okada S., Hoshino M., Ueno K., J. Am. Chem. Soc., 2004, 125, 12971
[9] Tsuzuki T., Shirasawa N., Suzuki T., Tokito S., Adv. Mater., 2003, 15, 1455
[10] Wang B. Z., Liu J., Zhang B., Wu H. B., Wen S. S., Yang W., Chin. Phys. B, 2011, 20, 088502
[11] Baldo M. A., Forrest S. R., Phys. Rev. B, 2000, 62, 10958
[12] Baldo M. A., Adachi C., Forrest S. R., Phys. Rev. B, 2000, 62, 10967
[13] Tsuzuki T., Tokito S. Z., Adv. Mater., 2007, 19, 276
[14] Koga Y. J., Matsubara K. K., J. Polym. Sci. Pol. Chem., 2009, 47, 4358
[15] Liu Z. W., Bian Z. Q., Hao F., Nie D. B., Ding F., Chen Z. Q., Huang C. H., Org. Electron., 2009, 10, 247
[16] Tsuzuki T., Nakayama Y. J., Nakamura J. J., Iwata T. S., Tokito S. Z., Appl. Phys. Lett., 2006, 88, 243511
[17] Matsusue N., Suzuki Y., Naito H., Jpn. J. Appl. Phys., 2005, 44, 3691
[18] Tsai M. H., Lin H. W., Su H. C., Ke T. H., Wu C., Fang F. C., Liao Y. L., Wong K. T., Wu C. I., Adv. Mater., 2006, 18, 1216
[19] Holmes R. J., Forrest S. R., Tung Y. J., Kwong R. C., Brown J. J., Garon S., Thompson M. E., Appl. Phys. Lett., 2003, 82, 2422
[20] Baldo M. A., Forrest S. R., Phys. Rev. B, 2000, 62, 10958
[21] Yin Y. M., Yu J., Cao H. T., Zhang L. T., Sun H. Z., Xie W. F., Sci. Rep., 2014, 4, 6754
[22] Simone H., Furno M., Lüssem B., Leo K., Gather M. C., Phys. Status. Solidi. A, 2013, 210, 1467
[23] Hung W. Y., Fang G. C., Chang Y. C., Kuo T. Y., Chou P. T., Lin S. W., Wong K. T., ACS Appl. Mater. Interfaces, 2013, 5, 6826
[24] Commission Internationale de L'éclairage(CIE), Method of Measuring and Specifying Colour Rendering Properties of Light Sources, Paris, 1974

Efficient and Low-voltage Phosphorescent Organic Light-emitting Devices Based on Blue Iridium Complex Host

Knowledge

Cited

Abstract

Cite this article

share this article

References

Related Articles 2

Recommended Articles

Metrics

Comments

[1]	ZHANG Tianyu, ZHENG Yu, WANG Chengming, ZHANG Yixin, LIU Shihao, MA Jian, ZHANG Letian, XIE Wenfa, CHEN Ping, LIN Jun, LIU Yujuan. Highly Efficient White Organic Light-emitting Devices with Optimized Electron Transporting Layers [J]. Chemical Research in Chinese Universities, 2017, 33(2): 227-230.
[2]	ZHOU Liang, ZHANG Hong-jie, YU Jiang-bo, MENG Qing-guo, PENG Chun-yun, LIU Feng-yi, DENG Rui-ping, PENG Ze-ping, LI Zhe-feng. Dependence of Performance of Organic Light-emitting Devices on Sheet Resistance of Indium-tin-oxide Anodes [J]. Chemical Research in Chinese Universities, 2006, 22(4): 427-431.