Enhanced electroluminescence of all-inorganic colloidal quantum dot light-emitting diode by optimising the MoO3 intermediate layer

Tang, Liyuan1; Zhao, Junliang1,2; Zhang, Xiaoli1; Dai, Haitao1; Sun, Xiaowei3

2014-06

10.1049/mnl.2014.0079

Micro & Nano Letters   影响因子和分区

1750-0443

The effects of the molybdenum trioxide (MoO3) intermediate layer on the performance of all-inorganic colloidal quantum dot light-emitting diodes (QD-LEDs) with a structure of ITO/MoO3/NiO/QDs/ZnO/Al are explored. MoO3 layers with different thickness were inserted between the indium tin oxide and nickel oxide layer via a thermal evaporation process. The presented results show that an ultrathin (similar to 5 nm) MoO3 intermediate layer significantly enhanced the electroluminescence (EL) intensity of the QD-LED, which was more than 100 times higher than the device without the MoO3 layer. It is suggested that the EL enhancement originates from the effectively facilitated injection of holes into quantum dots through the MoO3 intermediate layer.

SCI ; EI

英语

其他

Shanghai Pujiang Program[12PJ1431000]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000338040700013

INST ENGINEERING TECHNOLOGY-IET

20142717885973

Aluminum compounds ; Electroluminescence ; Indium compounds ; Light ; Molybdenum oxide ; Nanocrystals ; Nickel oxide ; Semiconductor quantum dots ; Thermal evaporation ; Tin oxides ; Zinc compounds

Semiconductor Devices and Integrated Circuits:714.2 ; Light, Optics and Optical Devices:741 ; Light/Optics:741.1 ; Nanotechnology:761 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2

Web of Science

1.Tianjin Univ, Sch Sci, Tianjin Key Lab Low Dimens Mat Phys & Preparing T, Tianjin 300072, Peoples R China
2.Shanghai Juntech Co Ltd, Shanghai 201815, Peoples R China
3.South Univ Sci & Technol China, Dept Elect & Comp Engn, Shenzhen, Guangdong, Peoples R China

Tang, Liyuan,Zhao, Junliang,Zhang, Xiaoli,et al. Enhanced electroluminescence of all-inorganic colloidal quantum dot light-emitting diode by optimising the MoO3 intermediate layer[J]. Micro & Nano Letters,2014,9(6):421-424.

Tang, Liyuan,Zhao, Junliang,Zhang, Xiaoli,Dai, Haitao,&Sun, Xiaowei.(2014).Enhanced electroluminescence of all-inorganic colloidal quantum dot light-emitting diode by optimising the MoO3 intermediate layer.Micro & Nano Letters,9(6),421-424.

Tang, Liyuan,et al."Enhanced electroluminescence of all-inorganic colloidal quantum dot light-emitting diode by optimising the MoO3 intermediate layer".Micro & Nano Letters 9.6(2014):421-424.