Design, fabrication and characterization for multi-coloured light emitting diode based on Colloidal Quantum Dots

Wen Jun Zhang, Bao Cai Zhai, Jian Xu

Research output: Contribution to journalArticle

Abstract

Colloidal Quantum Dots (QDs) acted as luminescent layer in light emitting device can be tuned across from visible to near-infrared spectrum by changing the size of QD, and QD-LED has a narrow bandwidth (Full-width at Half-maximum (FWHM) of the Electroluminescence (EL) peak of ~30 nm). Core-shell quantum dots (wavelength at 523nm and 608nm) with a CdSe core and a ZnS shell were used as emissive layers in the devices. Poly-TPD as Hole-transport Layer (HTL) and ZnO as Electron-transport Layer (ETL) were used in device. By fabrication of red and green emitting device based on quantum dots, we researched the feature of device which provides reference for quantum-dot-based LEDs used in the cockpit and medical apparatus. However, the brightness, efficiency and lifetime of QD-LED need to be improved to meet the requirements of commercialization in the near future.

Original languageEnglish (US)
Pages (from-to)138-143
Number of pages6
JournalGuangdian Gongcheng/Opto-Electronic Engineering
Volume39
Issue number11
DOIs
StatePublished - Nov 1 2012

Fingerprint

Semiconductor quantum dots
Light emitting diodes
Fabrication
Electroluminescence
Temperature programmed desorption
Full width at half maximum
Luminance
Infrared radiation
Bandwidth
Wavelength

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

@article{4455d9299a4046d1a85218a7e8b6340b,
title = "Design, fabrication and characterization for multi-coloured light emitting diode based on Colloidal Quantum Dots",
abstract = "Colloidal Quantum Dots (QDs) acted as luminescent layer in light emitting device can be tuned across from visible to near-infrared spectrum by changing the size of QD, and QD-LED has a narrow bandwidth (Full-width at Half-maximum (FWHM) of the Electroluminescence (EL) peak of ~30 nm). Core-shell quantum dots (wavelength at 523nm and 608nm) with a CdSe core and a ZnS shell were used as emissive layers in the devices. Poly-TPD as Hole-transport Layer (HTL) and ZnO as Electron-transport Layer (ETL) were used in device. By fabrication of red and green emitting device based on quantum dots, we researched the feature of device which provides reference for quantum-dot-based LEDs used in the cockpit and medical apparatus. However, the brightness, efficiency and lifetime of QD-LED need to be improved to meet the requirements of commercialization in the near future.",
author = "Zhang, {Wen Jun} and Zhai, {Bao Cai} and Jian Xu",
year = "2012",
month = "11",
day = "1",
doi = "10.3969/j.issn.1003-501X.2012.11.022",
language = "English (US)",
volume = "39",
pages = "138--143",
journal = "Guangdian Gongcheng/Opto-Electronic Engineering",
issn = "1003-501X",
publisher = "Chinese Academy of Sciences",
number = "11",

}

Design, fabrication and characterization for multi-coloured light emitting diode based on Colloidal Quantum Dots. / Zhang, Wen Jun; Zhai, Bao Cai; Xu, Jian.

In: Guangdian Gongcheng/Opto-Electronic Engineering, Vol. 39, No. 11, 01.11.2012, p. 138-143.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Design, fabrication and characterization for multi-coloured light emitting diode based on Colloidal Quantum Dots

AU - Zhang, Wen Jun

AU - Zhai, Bao Cai

AU - Xu, Jian

PY - 2012/11/1

Y1 - 2012/11/1

N2 - Colloidal Quantum Dots (QDs) acted as luminescent layer in light emitting device can be tuned across from visible to near-infrared spectrum by changing the size of QD, and QD-LED has a narrow bandwidth (Full-width at Half-maximum (FWHM) of the Electroluminescence (EL) peak of ~30 nm). Core-shell quantum dots (wavelength at 523nm and 608nm) with a CdSe core and a ZnS shell were used as emissive layers in the devices. Poly-TPD as Hole-transport Layer (HTL) and ZnO as Electron-transport Layer (ETL) were used in device. By fabrication of red and green emitting device based on quantum dots, we researched the feature of device which provides reference for quantum-dot-based LEDs used in the cockpit and medical apparatus. However, the brightness, efficiency and lifetime of QD-LED need to be improved to meet the requirements of commercialization in the near future.

AB - Colloidal Quantum Dots (QDs) acted as luminescent layer in light emitting device can be tuned across from visible to near-infrared spectrum by changing the size of QD, and QD-LED has a narrow bandwidth (Full-width at Half-maximum (FWHM) of the Electroluminescence (EL) peak of ~30 nm). Core-shell quantum dots (wavelength at 523nm and 608nm) with a CdSe core and a ZnS shell were used as emissive layers in the devices. Poly-TPD as Hole-transport Layer (HTL) and ZnO as Electron-transport Layer (ETL) were used in device. By fabrication of red and green emitting device based on quantum dots, we researched the feature of device which provides reference for quantum-dot-based LEDs used in the cockpit and medical apparatus. However, the brightness, efficiency and lifetime of QD-LED need to be improved to meet the requirements of commercialization in the near future.

UR - http://www.scopus.com/inward/record.url?scp=84871847328&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84871847328&partnerID=8YFLogxK

U2 - 10.3969/j.issn.1003-501X.2012.11.022

DO - 10.3969/j.issn.1003-501X.2012.11.022

M3 - Article

VL - 39

SP - 138

EP - 143

JO - Guangdian Gongcheng/Opto-Electronic Engineering

JF - Guangdian Gongcheng/Opto-Electronic Engineering

SN - 1003-501X

IS - 11

ER -