Hybrid PVK: OXD-7: QDs Emitting Layer for High Color Purified Quantum Dot Light Emitting-Diode

Hoang Tuan Vu, Chih Chiang Yang, Ba Son Nguyen, Yan Kuin Su

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we proposed a novel hybrid quantum dot emitting layer (QD EML) for the efficient quantum dot light-emitting diodes (QLEDs). This proposed hybrid emitting layer consisted of a composite polymer with poly (9-vinlycarbazole) (PVK) and 1,3-bis[(4-tert-butylphenyl)-1,3,4oxadiazolyl]phenylene (OXD-7) in the weight ratio of 7:3 and high quantum yield CdSe@ZnS/ZnS quantum dots. By using PVK as hole transport and OXD-7 as electron transport polymer, both hole and electron was supported to inject into QD efficiently. Consequently, the maximum current efficiencies of 7.9 cd/A was achieved in QLEDs with the hybrid EML, which was ∼ 250 % improvement over the bared EML-device. Moreover, high color purity and wavelength stable green QLEDs with peak wavelength of 536 nm was also obtained.

Original languageEnglish
Title of host publicationProceedings 2018 4th International Conference on Green Technology and Sustainable Development, GTSD 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages726-728
Number of pages3
ISBN (Electronic)9781538651261
DOIs
Publication statusPublished - 2018 Dec 28
Event4th International Conference on Green Technology and Sustainable Development, GTSD 2018 - Ho Chi Minh City, Viet Nam
Duration: 2018 Nov 232018 Nov 24

Publication series

NameProceedings 2018 4th International Conference on Green Technology and Sustainable Development, GTSD 2018

Conference

Conference4th International Conference on Green Technology and Sustainable Development, GTSD 2018
CountryViet Nam
CityHo Chi Minh City
Period18-11-2318-11-24

All Science Journal Classification (ASJC) codes

  • Business, Management and Accounting (miscellaneous)
  • Fluid Flow and Transfer Processes
  • Computer Networks and Communications
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering
  • Mechanics of Materials

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