A facile arrested precipitation method for synthesis of pure wurtzite Cu 2ZnSnS 4 nanocrystals using thiourea as a sulfur source

Chunya Li; Enna Ha; Wing Leung Wong; Cuiling Li; Kam Piu Ho; Kwok Yin Wong

doi:10.1016/j.materresbull.2012.08.014

A facile arrested precipitation method for synthesis of pure wurtzite Cu 2ZnSnS 4 nanocrystals using thiourea as a sulfur source

Chunya Li, Enna Ha, Wing Leung Wong, Cuiling Li, Kam Piu Ho, Kwok Yin Wong

Research output: Journal article publication › Journal article › Academic research › peer-review

20 Citations (Scopus)

Abstract

A facile route for the synthesis of wurtzite Cu2ZnSnS4(CZTS) nanocrystals was developed by an arrested precipitation method at 240 °C under simple reaction conditions with diethanolamine as the solvent and thiourea as sulfur source. The structure and morphology of the CZTS nanocrystals were characterized by X-ray diffraction and transmission electron microscopy. Control experiments demonstrated that CZTS nanocrystals which are purely wurtzite structure are readily obtained. The average diameter of the bulk CZTS products is found to be 10 ± 1.1 nm. The estimated direct bandgap energy is 1.56 eV, which indicates that the CZTS nanocrystals produced by this method possess promising applications in photovoltaic devices.

Original language	English
Pages (from-to)	3201-3205
Number of pages	5
Journal	Materials Research Bulletin
Volume	47
Issue number	11
DOIs	https://doi.org/10.1016/j.materresbull.2012.08.014
Publication status	Published - 1 Nov 2012

Keywords

A. Semiconductors
B. Chemical synthesis
C. Electron microscopy
C. Impedance spectroscopy
C. X-ray diffraction

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

More information

10.1016/j.materresbull.2012.08.014

Cite this

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title = "A facile arrested precipitation method for synthesis of pure wurtzite Cu 2ZnSnS 4 nanocrystals using thiourea as a sulfur source",

abstract = "A facile route for the synthesis of wurtzite Cu2ZnSnS4(CZTS) nanocrystals was developed by an arrested precipitation method at 240 °C under simple reaction conditions with diethanolamine as the solvent and thiourea as sulfur source. The structure and morphology of the CZTS nanocrystals were characterized by X-ray diffraction and transmission electron microscopy. Control experiments demonstrated that CZTS nanocrystals which are purely wurtzite structure are readily obtained. The average diameter of the bulk CZTS products is found to be 10 ± 1.1 nm. The estimated direct bandgap energy is 1.56 eV, which indicates that the CZTS nanocrystals produced by this method possess promising applications in photovoltaic devices.",

keywords = "A. Semiconductors, B. Chemical synthesis, C. Electron microscopy, C. Impedance spectroscopy, C. X-ray diffraction",

author = "Chunya Li and Enna Ha and Wong, {Wing Leung} and Cuiling Li and Ho, {Kam Piu} and Wong, {Kwok Yin}",

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T1 - A facile arrested precipitation method for synthesis of pure wurtzite Cu 2ZnSnS 4 nanocrystals using thiourea as a sulfur source

AU - Li, Chunya

AU - Ha, Enna

AU - Wong, Wing Leung

AU - Li, Cuiling

AU - Ho, Kam Piu

AU - Wong, Kwok Yin

PY - 2012/11/1

Y1 - 2012/11/1

N2 - A facile route for the synthesis of wurtzite Cu2ZnSnS4(CZTS) nanocrystals was developed by an arrested precipitation method at 240 °C under simple reaction conditions with diethanolamine as the solvent and thiourea as sulfur source. The structure and morphology of the CZTS nanocrystals were characterized by X-ray diffraction and transmission electron microscopy. Control experiments demonstrated that CZTS nanocrystals which are purely wurtzite structure are readily obtained. The average diameter of the bulk CZTS products is found to be 10 ± 1.1 nm. The estimated direct bandgap energy is 1.56 eV, which indicates that the CZTS nanocrystals produced by this method possess promising applications in photovoltaic devices.

AB - A facile route for the synthesis of wurtzite Cu2ZnSnS4(CZTS) nanocrystals was developed by an arrested precipitation method at 240 °C under simple reaction conditions with diethanolamine as the solvent and thiourea as sulfur source. The structure and morphology of the CZTS nanocrystals were characterized by X-ray diffraction and transmission electron microscopy. Control experiments demonstrated that CZTS nanocrystals which are purely wurtzite structure are readily obtained. The average diameter of the bulk CZTS products is found to be 10 ± 1.1 nm. The estimated direct bandgap energy is 1.56 eV, which indicates that the CZTS nanocrystals produced by this method possess promising applications in photovoltaic devices.

KW - A. Semiconductors

KW - B. Chemical synthesis

KW - C. Electron microscopy

KW - C. Impedance spectroscopy

KW - C. X-ray diffraction

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U2 - 10.1016/j.materresbull.2012.08.014

DO - 10.1016/j.materresbull.2012.08.014

M3 - Journal article

SN - 0025-5408

VL - 47

SP - 3201

EP - 3205

JO - Materials Research Bulletin

JF - Materials Research Bulletin

IS - 11

ER -

A facile arrested precipitation method for synthesis of pure wurtzite Cu 2ZnSnS 4 nanocrystals using thiourea as a sulfur source

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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