Surface treatment on polyethylenimine interlayer to improve inverted OLED performance

doi:10.1088/1674-1056/25/10/108505

Abstract Polyethylenimine (PEI) interlayer rinsing with different solvents for inverted organic light emitting diodes (OLEDs) is systematically studied in this paper. In comparison with the pristine one, the maximum current efficiency (CE_max) and power efficiency (PE_max) are enhanced by 21% and 22% for the device rinsing by ethylene glycol monomethyl ether (EEA). Little effect is found on the work function of the PEI interlayer rinsed by deionized water (DI), ethanol (EtOH), and EEA. On the other hand, the surface morphologies of PEI through different solvent treatments are quite different. Our results indicates that the surface morphology is the key to improving the device performance for IOLED as the work function of PEI keeps stable.

Keywords: inverted OLED surface treatment morphology polyethylenimine

Received: 11 March 2016
Revised: 12 June 2016
Accepted manuscript online:

PACS:	85.60.Jb	(Light-emitting devices)
	78.60.Fi	(Electroluminescence)
	72.80.Le	(Polymers; organic compounds (including organic semiconductors))

Fund: Project supported by the National Key Basic Research Project of China (Grant No. 2015CB351901), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDA09020201), the Youth Innovation Promotion Association of Chinese Academy of Sciences (Grant No. 2013206), the National Natural Science Foundation of China (Grant No. 21402233), and the Natural Science Foundation of Jiangsu Province, China (Grant Nos. BK2012631 and BK20140387).

Corresponding Authors: Ya-Li Chen, Dong-Yu Zhang
E-mail: ylchen@staff.shu.edu.cn;dyzhang2010@sinano.ac.cn

Cite this article:

Chang-Ting Wei(魏昌庭), Jin-Yong Zhuang(庄锦勇), Ya-Li Chen(陈雅丽), Dong-Yu Zhang(张东煜), Wen-Ming Su(苏文明), Zheng Cui(崔铮) Surface treatment on polyethylenimine interlayer to improve inverted OLED performance 2016 Chin. Phys. B 25 108505

[1]	Tang C W and VanSlyke S A 1987 Appl. Phys. Lett. 51 913
[2]	Burroughes J, Bradley D, Brown A, Marks R, Mackay K, Friend R, Burns P and Holmes A 1990 Nature 347 539
[3]	Baldo M A, O'brien D, You Y, Shoustikov A, Sibley S, Thompson M and Forrest S 1998 Nature 395 151
[4]	Friend R, Gymer R, Holmes A, Burroughes J, Marks R, Taliani C, Bradley D, Dos Santos D, Bredas J and Lögdlund M 1999 Nature 397 121
[5]	Müller C D, Falcou A, Reckefuss N, Rojahn M, Wiederhirn V, Rudati P, Frohne H, Nuyken O, Becker H and Meerholz K 2003 Nature 421 829
[6]	Sun Y, Giebink N C, Kanno H, Ma B, Thompson M E and Forrest S R 2006 Nature 440 908
[7]	Yu J N, Zhang M Y, Li C, Shang Y Z, Lv Y F Wei B and Huang W 2012 Chin. Phys. B 21 083303
[8]	Miao Y Q, Gao Z X, Zhang A Q, Li Y H, Wang H, Jia H S, Liu X G and Tsuboi T 2015 Chin. Phys. B 24 057802
[9]	Hsieh H H, Tsai T T, Chang C Y, Wang H H, Huang J Y, Hsu S F, Wu Y C, Tsai T C, Chuang C S and Chang L H 2010 SID Int. Symp. Dig. Tech. Pap. 41 140
[10]	Fan Y, Zhang H, Chen J and Ma D 2013 Org. Electron. 14 1898
[11]	Shih T H, Ting H C, Lin P L, Chen C L, Tsai L, Chen C Y, Lin L F, Liu C H, Chen C C and Lin H S 2014 SID Int. Symp. Dig. Tech. Pap. 45 766
[12]	Song E and Nam H 2014 Displays 35 118
[13]	Lee J H, Wang P S, Park H D, Wu C I and Kim J J 2011 Org. Electron. 12 1763
[14]	Lee H, Park I, Kwak J, Yoon D Y and Lee C 2010 Appl. Phys. Lett. 96 153306
[15]	Chen J, Shi C, Fu Q, Zhao F, Hu Y, Feng Y and Ma D 2012 J. Mater. Chem. 22 5164
[16]	Ding Z, Xing R, Fu Q, Ma D and Han Y 2011 Org. Electron. 12 703
[17]	Wilson P, Lekakou C and Watts J F 2012 Org. Electron. 13 409
[18]	Perelaer J, Abbel R, Wünscher S, Jani R, Van Lammeren T and Schubert U S 2012 Adv. Mater. 24 2620
[19]	Coenen M J, Slaats T M, Eggenhuisen T M and Groen P 2015 Thin Solid Films 583 194
[20]	Kabra D, Lu L P, Song M H, Snaith H J and Friend R H 2010 Adv. Mater. 22 3194
[21]	Zhou Y, Fuentes-Hernandez C, Shim J, Meyer J, Giordano A J, Li H, Winget P, Papadopoulos T, Cheun H and Kim J 2012 Science 336 327
[22]	Kim Y H, Han T H, Cho H, Min S Y, Lee C L and Lee T W 2014 Adv. Funct. Mater. 24 3808
[23]	Stolz S, Scherer M, Mankel E, Lovrincic R, Schinke J, Kowalsky W, Jaegermann W, Lemmer U, Mechau N and Hernandez-Sosa G 2014 ACS Appl. Mater. Interfaces 6 6616
[24]	Min X, Jiang F, Qin F, Li Z, Tong J, Xiong S, Meng W and Zhou Y 2014 ACS Appl. Mater. Interfaces 6 22628
[25]	Fan C, Lei Y, Liu Z, Wang R, Lei Y, Li G, Xiong Z and Yang X 2015 ACS Appl. Mater. Interfaces 7 20769
[26]	Yan L, Song Y, Zhou Y, Song B and Li Y 2015 Org. Electron. 17 94
[27]	Yang W, Liu Z, Chen J, Huang L, Zhang L, Pan H, Wu B and Lin Y 2015 Sci. Rep. 5
[28]	Höfle S, Schienle A, Bruns M, Lemmer U and Colsmann A 2014 Adv. Mater. 26 2750
[29]	Höfle S, Schienle A, Bernhard C, Bruns M, Lemmer U and Colsmann A 2014 Adv. Mater. 26 5155
[30]	Beek W J, Wienk M M, Kemerink M, Yang X and Janssen R A 2005 J. Phys. Chem. B 109 9505
[31]	West S D 1987 J. Chromatogr. Sci. 25 122
[32]	Liu S, Ho S, Chen Y and So F 2015 Chem. Mater. 27 2532
[33]	Dong W F, Liu S, Wan L, Mao G, Kurth D G and Möhwald H 2005 Chem. Mater. 17 4992
[34]	Staudigel J, Stößel M, Steuber F and Simmerer J 1999 J. Appl. Phys. 86 3895

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Surface treatment on polyethylenimine interlayer to improve inverted OLED performance

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