Effect of time-dependent characteristics of zno nanoparticles electron transport layer improved by intense-pulsed light post-treatment on hole-electron injection balance of quantum-dot light-emitting diodes

Young Joon Han; Kyung Tae Kang; Byeong Kwon Ju; Kwan Hyun Cho

doi:10.3390/ma13215041

Effect of time-dependent characteristics of zno nanoparticles electron transport layer improved by intense-pulsed light post-treatment on hole-electron injection balance of quantum-dot light-emitting diodes

Young Joon Han, Kyung Tae Kang, Byeong Kwon Ju, Kwan Hyun Cho

School of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

We investigated the effect of intense-pulsed light (IPL) post-treatment on the time-dependent characteristics of ZnO nanoparticles (NPs) used as an electron transport layer (ETL) of quantum-dot light-emitting diodes (QLEDs). The time-dependent characteristics of the charge injection balance in QLEDs was observed by fabrication and analysis of single carrier devices (SCDs), and it was confirmed that the time-dependent characteristics of the ZnO NPs affect the device characteristics of QLEDs. Stabilization of the ZnO NPs film properties for improvement of the charge injection balance in QLEDs was achieved by controlling the current density characteristics via filling of the oxygen vacancies by IPL post-treatment.

Original language	English
Article number	5041
Pages (from-to)	1-11
Number of pages	11
Journal	Materials
Volume	13
Issue number	21
DOIs	https://doi.org/10.3390/ma13215041
Publication status	Published - 2020 Nov

Keywords

Intense-pulsed light (IPL)
Quantum-dot (QD)
Quantum-dot light-emitting diodes (QLEDs)
Zinc-oxide nanoparticles (ZnO NPs)

ASJC Scopus subject areas

Materials Science(all)

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10.3390/ma13215041

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Effect of time-dependent characteristics of zno nanoparticles electron transport layer improved by intense-pulsed light post-treatment on hole-electron injection balance of quantum-dot light-emitting diodes. / Han, Young Joon; Kang, Kyung Tae; Ju, Byeong Kwon et al.

In: Materials, Vol. 13, No. 21, 5041, 11.2020, p. 1-11.

Research output: Contribution to journal › Article › peer-review

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title = "Effect of time-dependent characteristics of zno nanoparticles electron transport layer improved by intense-pulsed light post-treatment on hole-electron injection balance of quantum-dot light-emitting diodes",

abstract = "We investigated the effect of intense-pulsed light (IPL) post-treatment on the time-dependent characteristics of ZnO nanoparticles (NPs) used as an electron transport layer (ETL) of quantum-dot light-emitting diodes (QLEDs). The time-dependent characteristics of the charge injection balance in QLEDs was observed by fabrication and analysis of single carrier devices (SCDs), and it was confirmed that the time-dependent characteristics of the ZnO NPs affect the device characteristics of QLEDs. Stabilization of the ZnO NPs film properties for improvement of the charge injection balance in QLEDs was achieved by controlling the current density characteristics via filling of the oxygen vacancies by IPL post-treatment.",

keywords = "Intense-pulsed light (IPL), Quantum-dot (QD), Quantum-dot light-emitting diodes (QLEDs), Zinc-oxide nanoparticles (ZnO NPs)",

author = "Han, {Young Joon} and Kang, {Kyung Tae} and Ju, {Byeong Kwon} and Cho, {Kwan Hyun}",

note = "Funding Information: Funding: This study was conducted with support from the Korea Institute of Industrial Technology as R&D program (KITECH, UI200007), and by the Industry technology R&D program (20010510) funded by the Ministry of Trade, Industry & Energy (MOTIE, South Korea). Publisher Copyright: {\textcopyright} MDPI AG. All rights reserved.",

year = "2020",

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doi = "10.3390/ma13215041",

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AU - Cho, Kwan Hyun

N1 - Funding Information: Funding: This study was conducted with support from the Korea Institute of Industrial Technology as R&D program (KITECH, UI200007), and by the Industry technology R&D program (20010510) funded by the Ministry of Trade, Industry & Energy (MOTIE, South Korea). Publisher Copyright: © MDPI AG. All rights reserved.

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N2 - We investigated the effect of intense-pulsed light (IPL) post-treatment on the time-dependent characteristics of ZnO nanoparticles (NPs) used as an electron transport layer (ETL) of quantum-dot light-emitting diodes (QLEDs). The time-dependent characteristics of the charge injection balance in QLEDs was observed by fabrication and analysis of single carrier devices (SCDs), and it was confirmed that the time-dependent characteristics of the ZnO NPs affect the device characteristics of QLEDs. Stabilization of the ZnO NPs film properties for improvement of the charge injection balance in QLEDs was achieved by controlling the current density characteristics via filling of the oxygen vacancies by IPL post-treatment.

AB - We investigated the effect of intense-pulsed light (IPL) post-treatment on the time-dependent characteristics of ZnO nanoparticles (NPs) used as an electron transport layer (ETL) of quantum-dot light-emitting diodes (QLEDs). The time-dependent characteristics of the charge injection balance in QLEDs was observed by fabrication and analysis of single carrier devices (SCDs), and it was confirmed that the time-dependent characteristics of the ZnO NPs affect the device characteristics of QLEDs. Stabilization of the ZnO NPs film properties for improvement of the charge injection balance in QLEDs was achieved by controlling the current density characteristics via filling of the oxygen vacancies by IPL post-treatment.

KW - Intense-pulsed light (IPL)

KW - Quantum-dot (QD)

KW - Quantum-dot light-emitting diodes (QLEDs)

KW - Zinc-oxide nanoparticles (ZnO NPs)

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Effect of time-dependent characteristics of zno nanoparticles electron transport layer improved by intense-pulsed light post-treatment on hole-electron injection balance of quantum-dot light-emitting diodes

Abstract

Keywords

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