Efficient, air-stable quantum dots light-emitting devices with MoO3 modifying the anode

被引：10

作者：

Meng, Xiangdong ^{[1
,2
]}

Ji, Wenyu ^{[2
]}

Hua, Jie ^{[1
]}

Yu, Zhaoliang ^{[1
]}

Zhang, Yan ^{[1
]}

Li, Haibo ^{[1
]}

Zhao, Jialong ^{[2
]}

机构：

[1] Jilin Normal Univ, Minist Educ, Key Lab Funct Mat Phys & Chem, Siping 136000, Peoples R China

[2] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, State Key Lab Luminescence & Applicat, Changchun 130033, Peoples R China

来源：

JOURNAL OF LUMINESCENCE | 2013年 / 143卷

基金：

中国国家自然科学基金;

关键词：

Quantum dots; Light emitting devices; Energy transfer; Charge injection; DIODES; NANOCRYSTALS; BRIGHT;

D O I：

10.1016/j.jlumin.2013.05.052

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this work, we fabricated quantum dots light-emitting devices with hole-injection layer, molybdenum oxide (MoO3) substituting for poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) which is hygroscopic and acidic and, therefore, a source of interface instability. A significant enhancement in luminance and current efficiency in MoO3-containing devices was observed. In addition, MoO3-containing devices were more stable in the air than those with PEDOT:PSS as the hole injection layer. The hole injection and transport of the devices were studied by the J-V characteristics of the hole-only devices. The excellent performance of the devices was principally a result of MoO3 possessing lower injection barrier for the hole and better stability than PEDOT:PSS. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：442 / 446

页数：5

共 28 条

[1] Highly Efficient Green-Light-Emitting Diodes Based on CdSe@ZnS Quantum Dots with a Chemical-Composition Gradient [J].

Bae, Wan Ki ;

Kwak, Jeonghun ;

Park, Ji Won ;

Char, Kookheon ;

Lee, Changhee ;

Lee, Seonghoon .

ADVANCED MATERIALS, 2009, 21 (17) :1690-+

[2] ELECTRON ELECTRON AND ELECTRON-HOLE INTERACTIONS IN SMALL SEMICONDUCTOR CRYSTALLITES - THE SIZE DEPENDENCE OF THE LOWEST EXCITED ELECTRONIC STATE [J].

BRUS, LE .

JOURNAL OF CHEMICAL PHYSICS, 1984, 80 (09) :4403-4409

[3] High-performance crosslinked colloidal quantum-dot light-emitting diodes [J].

Cho, Kyung-Sang ;

Lee, Eun Kyung ;

Joo, Won-Jae ;

Jang, Eunjoo ;

Kim, Tae-Ho ;

Lee, Sang Jin ;

Kwon, Soon-Jae ;

Han, Jai Yong ;

Kim, Byung-Ki ;

Choi, Byoung Lyong ;

Kim, Jong Min .

NATURE PHOTONICS, 2009, 3 (06) :341-345

[4] Electroluminescence from single monolayers of nanocrystals in molecular organic devices [J].

Coe, S ;

Woo, WK ;

Bawendi, M ;

Bulovic, V .

NATURE, 2002, 420 (6917) :800-803

[5]

COLVIN VL, 1994, NATURE, V370, P354, DOI 10.1038/370354a0

[6] Transport properties of annealed CdSe colloidal nanocrystal solids [J].

Drndic, M ;

Jarosz, MV ;

Morgan, NY ;

Kastner, MA ;

Bawendi, MG .

JOURNAL OF APPLIED PHYSICS, 2002, 92 (12) :7498-7503

[7] Improving performance of organic solar cells using amorphous tungsten oxides as an interfacial buffer layer on transparent anodes [J].

Han, Seungchan ;

Shin, Won Suk ;

Seo, Myungsoo ;

Gupta, Dipti ;

Moon, Sang-Jin ;

Yoo, Seunghyup .

ORGANIC ELECTRONICS, 2009, 10 (05) :791-797

[8] Electrically driven light emission from single colloidal quantum dots at room temperature [J].

Huang, Hao ;

Dorn, August ;

Bulovic, Vladimir ;

Bawendi, Moungi G. .

APPLIED PHYSICS LETTERS, 2007, 90 (02)

[9] Energy level evolution of molybdenum trioxide interlayer between indium tin oxide and organic semiconductor [J].

Irfan ;

Ding, Huanjun ;

Gao, Yongli ;

Kim, Do Young ;

Subbiah, Jegadesan ;

So, Franky .

APPLIED PHYSICS LETTERS, 2010, 96 (07)

[10] p-Type semiconducting nickel oxide as an efficiency-enhancing anode interfacial layer in polymer bulk-heterojunction solar cells [J].

Irwin, Michael D. ;

Buchholz, Bruce ;

Hains, Alexander W. ;

Chang, Robert P. H. ;

Marks, Tobin J. .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2008, 105 (08) :2783-2787

← 1 2 3 →