Sputtered gold nanoparticles enhanced quantum dot light-emitting diodesh

Abida Perveen; Xin Zhang; Jia Lun Tang; Deng Bao Han; Shuai Chang; Luo Gen Deng; Wen Yu Ji; Hai Zheng Zhong

doi:10.1088/1674-1056/27/8/086101

Sputtered gold nanoparticles enhanced quantum dot light-emitting diodesh

Abida Perveen, Xin Zhang, Jia Lun Tang, Deng Bao Han, Shuai Chang^*, Luo Gen Deng, Wen Yu Ji, Hai Zheng Zhong

^*Corresponding author for this work

School of Material Science and Engineering

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

6 Citations (Scopus)

Abstract

Surface plasmonic effects of metallic particles have been known to be an effective method to improve the performances of light emitting didoes. In this work, we report the sputtered Au nanoparticles enhanced electroluminescence in inverted quantum dot light emitting diodes (ITO/Au NPs/ZnMgO/QDs/TFB/PEDOT:PSS/Al). By combining the timeresolved photoluminescence, transient electroluminescence, and ultraviolet photoelectron spectrometer measurements, the enhancement of the internal field enhanced exciton coupling to surface plasmons and the electron injection rate increasing with Au nanoparticles incorporation can be explained. Phenomenological numerical calculations indicate that the electron mobility of the electron transport layer increases from 1.39×10^-5 cm²/Vs to 1.91×10^-5 cm²/Vs for Au NPs modified device. As a result, the maximum device luminescence is enhanced by 1.41 fold (from 14600 cd/cm² to 20720 cd/cm²) and maximum current efficiency is improved by 1.29 fold (from 3.12 cd/A to 4.02 cd/A).

Original language	English
Article number	086101
Journal	Chinese Physics B
Volume	27
Issue number	8
DOIs	https://doi.org/10.1088/1674-1056/27/8/086101
Publication status	Published - Aug 2018

Keywords

gold nanoparticles
light-emitting diodes
plasmonic effect
quantum dots

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10.1088/1674-1056/27/8/086101

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title = "Sputtered gold nanoparticles enhanced quantum dot light-emitting diodesh",

abstract = "Surface plasmonic effects of metallic particles have been known to be an effective method to improve the performances of light emitting didoes. In this work, we report the sputtered Au nanoparticles enhanced electroluminescence in inverted quantum dot light emitting diodes (ITO/Au NPs/ZnMgO/QDs/TFB/PEDOT:PSS/Al). By combining the timeresolved photoluminescence, transient electroluminescence, and ultraviolet photoelectron spectrometer measurements, the enhancement of the internal field enhanced exciton coupling to surface plasmons and the electron injection rate increasing with Au nanoparticles incorporation can be explained. Phenomenological numerical calculations indicate that the electron mobility of the electron transport layer increases from 1.39×10-5 cm2/Vs to 1.91×10-5 cm2/Vs for Au NPs modified device. As a result, the maximum device luminescence is enhanced by 1.41 fold (from 14600 cd/cm2 to 20720 cd/cm2) and maximum current efficiency is improved by 1.29 fold (from 3.12 cd/A to 4.02 cd/A).",

keywords = "gold nanoparticles, light-emitting diodes, plasmonic effect, quantum dots",

author = "Abida Perveen and Xin Zhang and Tang, {Jia Lun} and Han, {Deng Bao} and Shuai Chang and Deng, {Luo Gen} and Ji, {Wen Yu} and Zhong, {Hai Zheng}",

note = "Publisher Copyright: {\textcopyright} 2018 Chinese Physical Society and IOP Publishing Ltd.",

year = "2018",

month = aug,

doi = "10.1088/1674-1056/27/8/086101",

language = "English",

volume = "27",

journal = "Chinese Physics B",

issn = "1674-1056",

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TY - JOUR

T1 - Sputtered gold nanoparticles enhanced quantum dot light-emitting diodesh

AU - Perveen, Abida

AU - Zhang, Xin

AU - Tang, Jia Lun

AU - Han, Deng Bao

AU - Chang, Shuai

AU - Deng, Luo Gen

AU - Ji, Wen Yu

AU - Zhong, Hai Zheng

PY - 2018/8

Y1 - 2018/8

N2 - Surface plasmonic effects of metallic particles have been known to be an effective method to improve the performances of light emitting didoes. In this work, we report the sputtered Au nanoparticles enhanced electroluminescence in inverted quantum dot light emitting diodes (ITO/Au NPs/ZnMgO/QDs/TFB/PEDOT:PSS/Al). By combining the timeresolved photoluminescence, transient electroluminescence, and ultraviolet photoelectron spectrometer measurements, the enhancement of the internal field enhanced exciton coupling to surface plasmons and the electron injection rate increasing with Au nanoparticles incorporation can be explained. Phenomenological numerical calculations indicate that the electron mobility of the electron transport layer increases from 1.39×10-5 cm2/Vs to 1.91×10-5 cm2/Vs for Au NPs modified device. As a result, the maximum device luminescence is enhanced by 1.41 fold (from 14600 cd/cm2 to 20720 cd/cm2) and maximum current efficiency is improved by 1.29 fold (from 3.12 cd/A to 4.02 cd/A).

AB - Surface plasmonic effects of metallic particles have been known to be an effective method to improve the performances of light emitting didoes. In this work, we report the sputtered Au nanoparticles enhanced electroluminescence in inverted quantum dot light emitting diodes (ITO/Au NPs/ZnMgO/QDs/TFB/PEDOT:PSS/Al). By combining the timeresolved photoluminescence, transient electroluminescence, and ultraviolet photoelectron spectrometer measurements, the enhancement of the internal field enhanced exciton coupling to surface plasmons and the electron injection rate increasing with Au nanoparticles incorporation can be explained. Phenomenological numerical calculations indicate that the electron mobility of the electron transport layer increases from 1.39×10-5 cm2/Vs to 1.91×10-5 cm2/Vs for Au NPs modified device. As a result, the maximum device luminescence is enhanced by 1.41 fold (from 14600 cd/cm2 to 20720 cd/cm2) and maximum current efficiency is improved by 1.29 fold (from 3.12 cd/A to 4.02 cd/A).

KW - gold nanoparticles

KW - light-emitting diodes

KW - plasmonic effect

KW - quantum dots

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DO - 10.1088/1674-1056/27/8/086101

M3 - Article

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SN - 1674-1056

VL - 27

JO - Chinese Physics B

JF - Chinese Physics B

IS - 8

M1 - 086101

ER -

Sputtered gold nanoparticles enhanced quantum dot light-emitting diodesh

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Keywords

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