Effects of Zn precursors on solvothermal synthesis of Cu 2ZnSnSe 4 nanocrystals

Ming Hung Chiang; Yaw Shyan Fu; Tzung Fang Guo; Hsiang Lin Liu; Wen Tai Lin

doi:10.1016/j.matlet.2012.06.008

Effects of Zn precursors on solvothermal synthesis of Cu ₂ZnSnSe ₄ nanocrystals

Ming Hung Chiang, Yaw Shyan Fu, Tzung Fang Guo, Hsiang Lin Liu, Wen Tai Lin^*

^*Corresponding author for this work

Department of Physics

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

16 Citations (Scopus)

Abstract

Cu ₂ZnSnSe ₄ (CZTSe) has potential applications in thin film solar cells and thermoelectric devices. The synthesis of stoichiometric CZTSe nanocrystals by the solvothermal process is still a challenge. In this work, the effects of different Zn precursors on the synthesis of pure and stoichiometric CZTSe nanocrystals via a facile solvothermal process were explored. The products were characterized using X-ray diffraction, Raman spectroscopy, scanning electron microscopy, energy dispersive spectroscopy, and UV-vis spectroscopy. The present study showed that with the Zn(CH ₃COO) ₂ precursor pure and stoichiometric CZTSe nanocrystals were readily synthesized, while with the ZnCl ₂ precursor the synthesized nanocrystals were Zn-deficient and composed of CZTSe and Cu ₂SnSe ₃ phases. This result can be attributed to the chelating effect of the acetate anion in the solvothermal reaction.

Original language	English
Pages (from-to)	192-194
Number of pages	3
Journal	Materials Letters
Volume	83
DOIs	https://doi.org/10.1016/j.matlet.2012.06.008
Publication status	Published - 2012 Sept 15

Keywords

Crystal growth
Nanocrystalline materials
Solar energy materials
Spectroscopy

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.matlet.2012.06.008

Cite this

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title = "Effects of Zn precursors on solvothermal synthesis of Cu 2ZnSnSe 4 nanocrystals",

abstract = "Cu 2ZnSnSe 4 (CZTSe) has potential applications in thin film solar cells and thermoelectric devices. The synthesis of stoichiometric CZTSe nanocrystals by the solvothermal process is still a challenge. In this work, the effects of different Zn precursors on the synthesis of pure and stoichiometric CZTSe nanocrystals via a facile solvothermal process were explored. The products were characterized using X-ray diffraction, Raman spectroscopy, scanning electron microscopy, energy dispersive spectroscopy, and UV-vis spectroscopy. The present study showed that with the Zn(CH 3COO) 2 precursor pure and stoichiometric CZTSe nanocrystals were readily synthesized, while with the ZnCl 2 precursor the synthesized nanocrystals were Zn-deficient and composed of CZTSe and Cu 2SnSe 3 phases. This result can be attributed to the chelating effect of the acetate anion in the solvothermal reaction.",

keywords = "Crystal growth, Nanocrystalline materials, Solar energy materials, Spectroscopy",

author = "Chiang, {Ming Hung} and Fu, {Yaw Shyan} and Guo, {Tzung Fang} and Liu, {Hsiang Lin} and Lin, {Wen Tai}",

note = "Funding Information: This work was sponsored by the Republic of China National Science Council under Contract No. NSC 99-2221-E-006-088-MY2 .",

year = "2012",

month = sep,

day = "15",

doi = "10.1016/j.matlet.2012.06.008",

language = "English",

volume = "83",

pages = "192--194",

journal = "Materials Letters",

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AU - Chiang, Ming Hung

AU - Fu, Yaw Shyan

AU - Guo, Tzung Fang

AU - Liu, Hsiang Lin

AU - Lin, Wen Tai

N1 - Funding Information: This work was sponsored by the Republic of China National Science Council under Contract No. NSC 99-2221-E-006-088-MY2 .

PY - 2012/9/15

Y1 - 2012/9/15

N2 - Cu 2ZnSnSe 4 (CZTSe) has potential applications in thin film solar cells and thermoelectric devices. The synthesis of stoichiometric CZTSe nanocrystals by the solvothermal process is still a challenge. In this work, the effects of different Zn precursors on the synthesis of pure and stoichiometric CZTSe nanocrystals via a facile solvothermal process were explored. The products were characterized using X-ray diffraction, Raman spectroscopy, scanning electron microscopy, energy dispersive spectroscopy, and UV-vis spectroscopy. The present study showed that with the Zn(CH 3COO) 2 precursor pure and stoichiometric CZTSe nanocrystals were readily synthesized, while with the ZnCl 2 precursor the synthesized nanocrystals were Zn-deficient and composed of CZTSe and Cu 2SnSe 3 phases. This result can be attributed to the chelating effect of the acetate anion in the solvothermal reaction.

AB - Cu 2ZnSnSe 4 (CZTSe) has potential applications in thin film solar cells and thermoelectric devices. The synthesis of stoichiometric CZTSe nanocrystals by the solvothermal process is still a challenge. In this work, the effects of different Zn precursors on the synthesis of pure and stoichiometric CZTSe nanocrystals via a facile solvothermal process were explored. The products were characterized using X-ray diffraction, Raman spectroscopy, scanning electron microscopy, energy dispersive spectroscopy, and UV-vis spectroscopy. The present study showed that with the Zn(CH 3COO) 2 precursor pure and stoichiometric CZTSe nanocrystals were readily synthesized, while with the ZnCl 2 precursor the synthesized nanocrystals were Zn-deficient and composed of CZTSe and Cu 2SnSe 3 phases. This result can be attributed to the chelating effect of the acetate anion in the solvothermal reaction.

KW - Crystal growth

KW - Nanocrystalline materials

KW - Solar energy materials

KW - Spectroscopy

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