ZnCl 2-assisted Synthesis of ZnSe Polycrystal

Changyou Liu; Tao Wang; Gangqiang Zha; Zhi Gu; Wanqi Jie

doi:10.1016/S1005-0302(12)60070-X

ZnCl ₂-assisted Synthesis of ZnSe Polycrystal

Changyou Liu, Tao Wang, Gangqiang Zha, Zhi Gu, Wanqi Jie

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

3 Scopus citations

Abstract

A chemical-assisted element direct-reaction method is developed to synthesize ZnSe compound semiconductor material at a relatively low temperature (∼1000 °C). ZnSe polycrystal was obtained in the closed-tube systems with Zn-Se, Zn-Se-Zn(NH ₃) ₂Cl ₂, Zn-Se-NH ₄Cl and Zn-Se-ZnCl ₂. The as-synthesized samples were tested by X-ray diffraction (XRD), thermogravimetric analysis (TGA) and analyzed by thermodynamic numerical method. The results demonstrate that the synthesis efficiency is higher than 99.96% for Zn-Se-ZnCl ₂ system at around 1000 °C for 3 weeks. It also exhibits that not only temperature, but also low apparent ratio of volume and surface area of the source materials and higher ZnCl ₂ content are required to achieve high synthesis efficiency. A SeCl transporting reaction synthesis process is proposed based on the thermodynamic analysis.

Original language	English
Pages (from-to)	373-378
Number of pages	6
Journal	Journal of Materials Science and Technology
Volume	28
Issue number	4
DOIs	https://doi.org/10.1016/S1005-0302(12)60070-X
State	Published - Apr 2012

Keywords

Crystallites
Growth from vapor
Semiconducting II-VI materials
Zinc compounds

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10.1016/S1005-0302(12)60070-X

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title = "ZnCl 2-assisted Synthesis of ZnSe Polycrystal",

abstract = "A chemical-assisted element direct-reaction method is developed to synthesize ZnSe compound semiconductor material at a relatively low temperature (∼1000 °C). ZnSe polycrystal was obtained in the closed-tube systems with Zn-Se, Zn-Se-Zn(NH 3) 2Cl 2, Zn-Se-NH 4Cl and Zn-Se-ZnCl 2. The as-synthesized samples were tested by X-ray diffraction (XRD), thermogravimetric analysis (TGA) and analyzed by thermodynamic numerical method. The results demonstrate that the synthesis efficiency is higher than 99.96% for Zn-Se-ZnCl 2 system at around 1000 °C for 3 weeks. It also exhibits that not only temperature, but also low apparent ratio of volume and surface area of the source materials and higher ZnCl 2 content are required to achieve high synthesis efficiency. A SeCl transporting reaction synthesis process is proposed based on the thermodynamic analysis.",

keywords = "Crystallites, Growth from vapor, Semiconducting II-VI materials, Zinc compounds",

author = "Changyou Liu and Tao Wang and Gangqiang Zha and Zhi Gu and Wanqi Jie",

year = "2012",

month = apr,

doi = "10.1016/S1005-0302(12)60070-X",

language = "英语",

volume = "28",

pages = "373--378",

journal = "Journal of Materials Science and Technology",

issn = "1005-0302",

publisher = "Chinese Society of Metals",

number = "4",

}

TY - JOUR

T1 - ZnCl 2-assisted Synthesis of ZnSe Polycrystal

AU - Liu, Changyou

AU - Wang, Tao

AU - Zha, Gangqiang

AU - Gu, Zhi

AU - Jie, Wanqi

PY - 2012/4

Y1 - 2012/4

N2 - A chemical-assisted element direct-reaction method is developed to synthesize ZnSe compound semiconductor material at a relatively low temperature (∼1000 °C). ZnSe polycrystal was obtained in the closed-tube systems with Zn-Se, Zn-Se-Zn(NH 3) 2Cl 2, Zn-Se-NH 4Cl and Zn-Se-ZnCl 2. The as-synthesized samples were tested by X-ray diffraction (XRD), thermogravimetric analysis (TGA) and analyzed by thermodynamic numerical method. The results demonstrate that the synthesis efficiency is higher than 99.96% for Zn-Se-ZnCl 2 system at around 1000 °C for 3 weeks. It also exhibits that not only temperature, but also low apparent ratio of volume and surface area of the source materials and higher ZnCl 2 content are required to achieve high synthesis efficiency. A SeCl transporting reaction synthesis process is proposed based on the thermodynamic analysis.

AB - A chemical-assisted element direct-reaction method is developed to synthesize ZnSe compound semiconductor material at a relatively low temperature (∼1000 °C). ZnSe polycrystal was obtained in the closed-tube systems with Zn-Se, Zn-Se-Zn(NH 3) 2Cl 2, Zn-Se-NH 4Cl and Zn-Se-ZnCl 2. The as-synthesized samples were tested by X-ray diffraction (XRD), thermogravimetric analysis (TGA) and analyzed by thermodynamic numerical method. The results demonstrate that the synthesis efficiency is higher than 99.96% for Zn-Se-ZnCl 2 system at around 1000 °C for 3 weeks. It also exhibits that not only temperature, but also low apparent ratio of volume and surface area of the source materials and higher ZnCl 2 content are required to achieve high synthesis efficiency. A SeCl transporting reaction synthesis process is proposed based on the thermodynamic analysis.

KW - Crystallites

KW - Growth from vapor

KW - Semiconducting II-VI materials

KW - Zinc compounds

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U2 - 10.1016/S1005-0302(12)60070-X

DO - 10.1016/S1005-0302(12)60070-X

M3 - 文章

AN - SCOPUS:84860718892

SN - 1005-0302

VL - 28

SP - 373

EP - 378

JO - Journal of Materials Science and Technology

JF - Journal of Materials Science and Technology

IS - 4

ER -

ZnCl ₂-assisted Synthesis of ZnSe Polycrystal

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Keywords

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