Fabrication of CdSe/ZnS quantum dots thin film by electrohydrodynamics atomization technique for solution based flexible hybrid OLED application

Muhammad Zubair, Maria Mustafa, Kangtaek Lee, Cheolsang Yoon, Yang Hoi Doh, Kyung Hyun Choi

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

The synthesis and novel fabrication of quantum dot layers has been performed by using electrohydrodynamics atomization technique. The surface, optical and electrical properties of the fabricated films have been characterized by FE-SEM, TEM, spectroscopes and semiconductor device analyzer. The CdSe/ZnS core/shell quantum dots have been synthesized and dispersed in toluene and DMSO as cosolvents. The sprayed CdSe/ZnS quantum dots have been employed as emissive layer. The conjugate polymers of PEDOT:PSS and MEH-PPV are used as the hole and electron transport layers. The thickness of emissive layer for hybrid device has been optimized by changing the standoff distance of electrohydrodynamics atomization system. The flexible hybrid device with optimized thickness of quantum dots showed red light at 634nm wavelength in visible range with 165mA/cm2 current density and 2.2 lux of luminance at 15V.

Original languageEnglish
Pages (from-to)325-331
Number of pages7
JournalChemical Engineering Journal
Volume253
DOIs
Publication statusPublished - 2014 Oct 1

Bibliographical note

Funding Information:
This study is supported by the Technology Innovation Program (No. 10041596 , Development of core technology for TFT free active matrix addressing color electronic paper with day and night usage) funded by the Ministry of Knowledge Economy (MKE, Korea).

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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