Characterization of surface modified ZnCuInS2 nanocrystals and its application to white light-emitting diodes

Hyunchul Jung; Wonkeun Chung; Chang Hun Lee; Sung Hyun Kim

doi:10.1364/AO.52.001992

Characterization of surface modified ZnCuInS₂ nanocrystals and its application to white light-emitting diodes

Hyunchul Jung, Wonkeun Chung, Chang Hun Lee, Sung Hyun Kim

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

6 Citations (Scopus)

Abstract

Red-emitting ZnCuInS₂ semiconductor nanocrystals (NCs) were synthesized and surface modification was performed on the NCs with oleylamine, trioctylphosphine, and 3-mercaptopropionic acid by the ligand exchange strategy. UV-visible spectroscopy, photoluminescence (PL) spectroscopy, time-resolved PL analysis, and attenuated total reflection Fourier transform infrared spectroscopy were used to verify the surface modification of NCs. Additionally, white light-emitting diodes (LEDs) were fabricated using surface modified red-emitting ZnCuInS₂ NCs as red phosphor to compensate for the deficiency of red emission in white LEDs, consisting of blue LEDs as excitation sources and YAG:Ce as yellow phosphor.

Original language	English
Pages (from-to)	1992-1997
Number of pages	6
Journal	Applied optics
Volume	52
Issue number	10
DOIs	https://doi.org/10.1364/AO.52.001992
Publication status	Published - 2013 Apr 1

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

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10.1364/AO.52.001992

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title = "Characterization of surface modified ZnCuInS2 nanocrystals and its application to white light-emitting diodes",

abstract = "Red-emitting ZnCuInS2 semiconductor nanocrystals (NCs) were synthesized and surface modification was performed on the NCs with oleylamine, trioctylphosphine, and 3-mercaptopropionic acid by the ligand exchange strategy. UV-visible spectroscopy, photoluminescence (PL) spectroscopy, time-resolved PL analysis, and attenuated total reflection Fourier transform infrared spectroscopy were used to verify the surface modification of NCs. Additionally, white light-emitting diodes (LEDs) were fabricated using surface modified red-emitting ZnCuInS2 NCs as red phosphor to compensate for the deficiency of red emission in white LEDs, consisting of blue LEDs as excitation sources and YAG:Ce as yellow phosphor.",

author = "Hyunchul Jung and Wonkeun Chung and Lee, {Chang Hun} and Kim, {Sung Hyun}",

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AU - Jung, Hyunchul

AU - Chung, Wonkeun

AU - Lee, Chang Hun

AU - Kim, Sung Hyun

PY - 2013/4/1

Y1 - 2013/4/1

N2 - Red-emitting ZnCuInS2 semiconductor nanocrystals (NCs) were synthesized and surface modification was performed on the NCs with oleylamine, trioctylphosphine, and 3-mercaptopropionic acid by the ligand exchange strategy. UV-visible spectroscopy, photoluminescence (PL) spectroscopy, time-resolved PL analysis, and attenuated total reflection Fourier transform infrared spectroscopy were used to verify the surface modification of NCs. Additionally, white light-emitting diodes (LEDs) were fabricated using surface modified red-emitting ZnCuInS2 NCs as red phosphor to compensate for the deficiency of red emission in white LEDs, consisting of blue LEDs as excitation sources and YAG:Ce as yellow phosphor.

AB - Red-emitting ZnCuInS2 semiconductor nanocrystals (NCs) were synthesized and surface modification was performed on the NCs with oleylamine, trioctylphosphine, and 3-mercaptopropionic acid by the ligand exchange strategy. UV-visible spectroscopy, photoluminescence (PL) spectroscopy, time-resolved PL analysis, and attenuated total reflection Fourier transform infrared spectroscopy were used to verify the surface modification of NCs. Additionally, white light-emitting diodes (LEDs) were fabricated using surface modified red-emitting ZnCuInS2 NCs as red phosphor to compensate for the deficiency of red emission in white LEDs, consisting of blue LEDs as excitation sources and YAG:Ce as yellow phosphor.

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SN - 1559-128X

VL - 52

SP - 1992

EP - 1997

JO - Applied optics

JF - Applied optics

IS - 10

ER -

Characterization of surface modified ZnCuInS₂ nanocrystals and its application to white light-emitting diodes

Abstract

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