Inverted Quantum-Dot Light-Emitting Diodes Fabricated by All-Solution Processing

Zhang, Heng; Li, Hanrun; Sun, Xiaowei; Chen, Shuming

2016-03-02

10.1021/acsami.5b12737

ACS Applied Materials & Interfaces   影响因子和分区

1944-8244

1944-8252

All-solution processed, multilayer, and inverted quantum-dot light-emitting diodes (QD-LEDs) are developed in this work. To protect the QDs from dissolving by the solvents of upper layers, the solvents of poly(9-vinlycarbazole) (PVK) hole transporting layer are first investigated. The QD layer has been less affected by o-dichlorobenzene solvent than other typical solvents like, chloroform and chlorobenzene. Second, to deposit a hydrophilic poly(ethylenedioxythiophene)/polystyrenesulfonate (PEDOT:PSS) hole injection layer on top of hydrophobic PVK, the surface energy of the PEDOT:PSS is reduced by using isopropanol as the additive. With optimized conditions, the demonstrated QD-LEDs exhibit a maximum luminance of 16290 cd/m(2) and a peak current efficiency of 4.1 cd/A, which is the highest among the reported values. These results may offer a practicable platform for further research, leading to the achievement of all-solution processed, multilayer, and efficient inverted QD-LEDs.

quantum dots light-emitting diodes inverted QD-LEDs all-solution-processed orthogonal solvents intermixing

SCI ; EI

英语

第一 ; 通讯

Special Support Program for Young Talent Scholar of Guangdong Province[2014TQ01 x 015]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000371453600052

AMER CHEMICAL SOC

20161002078410

Charge injection ; Chlorine compounds ; Conducting polymers ; Diodes ; Light emitting diodes ; Multilayers ; Nanocrystals ; Organic solvents ; Semiconductor quantum dots

Conducting Materials:708.2 ; Semiconductor Devices and Integrated Circuits:714.2 ; Nanotechnology:761 ; Chemical Agents and Basic Industrial Chemicals:803

Web of Science

Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China

Zhang, Heng,Li, Hanrun,Sun, Xiaowei,et al. Inverted Quantum-Dot Light-Emitting Diodes Fabricated by All-Solution Processing[J]. ACS Applied Materials & Interfaces,2016,8(8):5493-5498.

Zhang, Heng,Li, Hanrun,Sun, Xiaowei,&Chen, Shuming.(2016).Inverted Quantum-Dot Light-Emitting Diodes Fabricated by All-Solution Processing.ACS Applied Materials & Interfaces,8(8),5493-5498.

Zhang, Heng,et al."Inverted Quantum-Dot Light-Emitting Diodes Fabricated by All-Solution Processing".ACS Applied Materials & Interfaces 8.8(2016):5493-5498.