Simple Organic Light-Emitting Devices with a Charge Carrier Modulation Layer Towards Lower Driving Voltage and Higher Electroluminescent Efficiency

doi:10.21127/yaoyigc20160005

General Chemistry ›› 2016, Vol. 2 ›› Issue (4): 107-110.DOI: 10.21127/yaoyigc20160005

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Simple Organic Light-Emitting Devices with a Charge Carrier Modulation Layer Towards Lower Driving Voltage and Higher Electroluminescent Efficiency

Qin Xue,^a Yang Li,^a Xianchun Zhang,^a Yongxin Bian,^a Heng Hu,^a Guohua Xie*^,b()

^a Department of Physical Science and Technology, Central China Normal University, Wuhan, Hubei 430079, China
^b College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China

Received:2016-10-29 Accepted:2016-11-04 Online:2016-11-24 Published:2016-11-24
Contact: Guohua Xie

Abstract

Abstract:

We reported on simple but novel organic light-emitting devices with a thin electron transport layer inserted between a hole-injecting layer and a hole-transporting layer. Unexpectedly, it was observed that charge carriers could easily tunnel through the thin but high barrier and contribute to lower driving voltage and higher electroluminescent efficiency. When fixing the modulation layer for charge carrier tunneling at a thickness of 2.5 nm, we could achieve over 80% improvement in the power efficiency.

Key words: organic light-emitting devices, tunnels, barrier, trapping, reverse field

Qin Xue, Yang Li, Xianchun Zhang, Yongxin Bian, Heng Hu, Guohua Xie. Simple Organic Light-Emitting Devices with a Charge Carrier Modulation Layer Towards Lower Driving Voltage and Higher Electroluminescent Efficiency[J]. General Chemistry, 2016, 2(4): 107-110.

References

1	Tang C. W.;VanSlyke, S. A.Appl. Phys. Lett. 1987, 51, 913.
2	Baldo M. A.; O′Brien D. F.; You Y.; Shoustikov A.; Sibley S.; Thompson M. E.; Forrest S. R. Nature 1998, 395, 151.
3	Sun Y.; Giebink N. C.; Kanno H.; Ma B.; Thompson M. E.; Forrest S. R. Nature 2006,440, 908.
4	Reineke S.; Lindner F.; Schwartz G.; Seidler N.; Walzer K.; Lüssem B.; Leo K. Nature 2009,459, 234.
5	Uoyama H.; Goushi K.; Shizu K.; Nomura H.; Adachi C. Nature 2012, 492, 234.
6	Lee S. Y.; Yasuda T.; Nomura H.; Adachi C. Appl. Phys. Lett. 2012,101, 093306.
7	Zhang Q.; Li J.; Shizu K.; Huang S.; Hirata S.; Miyazaki H.; Adachi C. J. Am. Chem. Soc. 2012,134, 14706.
8	Lee S. Y.; Yasuda T.; Yang Y. S.; Zhang Q.; Adachi C. Angew. Chem., Int. Ed. 2014, 126, 6520.
9	Hirata S.; Sakai Y.; Masui K.; Tanaka H.; Lee S. Y.; Nomura H.; Nakamura N.; Yasumatsu M.; Nakanotani H.; Zhang Q.; Shizu K.; Miyazaki H.; Adachi C. Nat. Mater. 2015,14, 330.
10	www.universaldisplay.com
11	www.cdt.co.uk
12	Xie G.; Xue Q.; Chen P.; Tao C.; Zhao C.; Lu J.; Gong Z.; Zhang T.; Huang R.; Du H.; Xie W.; Hou J.; Zhao Y.; Liu S. Org. Electron.2010, 11, 407.
13	Xie G.; Zhang Z.; Xue Q.; Zhang S.; Zhao L.; Luo Y.; Chen P.; Quan B.; Zhao Y.; Liu S. Org. Electron. 2010, 11 2055.
14	Han C.; Xie G.; Xu H.; Zhang Z.; Xie L.; Zhao Y.; Liu S.; Huang W. Adv. Mater.2011, 23, 2491.
15	Xie G.; Zhang Z.; Xue Q.; Zhang S.; Luo Y.; Zhao L.; Chen P.; Quan B.; Zhao Y.; Liu, S. J. Phys. Chem. C 2011, 115, 264.
16	Fung M.; Li Y.; Liao L. Adv. Mater. 2016, DOI:
17	Sun M.; Zhu W.; Zhang Z.; Ou C.; Xie L.; Yang Y.; Qian Y.; Zhao Y.; Huang, W. J. Mater. Chem. C 2015, 3, 94.
18	Cao H.; Sun H.; Yin Y.; Wen X.; Shan G.; Su Z.; Zhong R.; Xie W.; Li P.; Zhu D. J. Mater. Chem. C 2014, 2, 2150.
19	Cao H.; Shan G.; Wen X.; Sun H.; Su Z.; Zhong R.; Xie W.; Li P.; Zhu, D. J. Mater. Chem. C 2013, 1, 7371.
20	Xie L.; Zhu R.; Qian Y.; Liu R.; Chen S.; Lin J.; Huang, W. J. Phys. Chem. Lett.2010, 1, 272.
21	Lu M.; Bruyn P.; Nicolai H. T.; Wetzelaer G. A. H.; Blom, P. W. M. Org. Electron.2012, 13, 1693.
22	Teramoto A.; Kobayashi K.; Ohno Y.; Shigetomi, A. IEEE T. Electron Dev.2001, 48, 868.
23	Xie G.; Fehse K.; Leo K.; Gather, M. C. Org. Electron.2013, 14. 2331.
24	Goushi K.; Yoshida K.; Sata K.; Adachi C. Nature Photon.2012, 6, 253.
25	Graves D.; Jankus V.; Dias F. B.; Monkman, A. Adv. Funct. Mater.2014, 24, 2343.
26	Zhu L.; Xu K.; Wang Y.; Chen J.; Ma D. Front. Optoelectron.2015, 8, 439.
27	Lin T.; Hsiao C.; Lee, J. Proc SPIE 2005, 5937, 59371Q.

Simple Organic Light-Emitting Devices with a Charge Carrier Modulation Layer Towards Lower Driving Voltage and Higher Electroluminescent Efficiency

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