Efficient Quantum Dot Light-Emitting Diodes

Chen, Shuming

10.1364/ACPC.2017.S3G.1

2017

2162-108X

978-1-7281-1633-4

2017 ASIA COMMUNICATIONS AND PHOTONICS CONFERENCE (ACP)

Part F83-ACPC 2017

1-1

10-13 Nov. 2017

Huanshi Dong (City Ring East) Road, Guangzhou, Uangdong, 510064, China

345 E 47TH ST, NEW YORK, NY 10017 USA

IEEE

Colloidal quantum dot light-emitting diodes (QLEDs) are recognized as promising candidates for next generation displays. In this talk, we will review our recent progress on QLEDs, particularly emphasizing the influence of device structures on the performance of QLEDs. Various device structures including top-emitting, microcavity, inverted, tandem, transparent, full-solution vacuum-free processed QLEDs will be talked. Charge balance is carefully optimized in these structures. In addition, we show that the defect concentration of ZnO can significantly quench the emission and thus reduces the performance of QLEDs. By substituting the problematic ZnO with ZnxMg1-xO, the efficiency of QLEDs can be largely improved. With the strategies mentioned above, our recently developed vacuum-free processed tandem QLEDs exhibit current efficiency and external quantum efficiency (EQE) over 100 cd/A and 23.5%, respectively.
© 2017 OSA.

Quantum dots Light emitting diodes Performance evaluation Zinc oxide II-VI semiconductor materials Elementary particle vacuum Asia

第一 ; 通讯

英语

CPCI-S ; EI

Optics ; Telecommunications

Optics ; Telecommunications

WOS:000463367800406

20180704784266

Efficiency ; II-VI semiconductors ; Magnesium compounds ; Nanocrystals ; Organic light emitting diodes (OLED) ; Photonics ; Semiconductor quantum dots ; Zinc oxide

Semiconductor Devices and Integrated Circuits:714.2 ; Light/Optics:741.1 ; Nanotechnology:761 ; Inorganic Compounds:804.2 ; Production Engineering:913.1 ; Quantum Theory; Quantum Mechanics:931.4

Web of Science

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

Chen, Shuming. Efficient Quantum Dot Light-Emitting Diodes[C]. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2017:1-1.