Synthesis of earth-abundant Cu2SnS3 powder using solid state reaction

Devendra Tiwari; Tapas K. Chaudhuri; T. Shripathi; U. Deshpande

doi:10.1016/j.jpcs.2013.11.012

Synthesis of earth-abundant Cu2SnS3 powder using solid state reaction

Devendra Tiwari, Tapas K. Chaudhuri, T. Shripathi, U. Deshpande

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

39 Citations (Scopus)

Abstract

Cu2SnS3 (CTS) powder has been synthesized at 200 °C by solid state reaction of pastes consisting of Cu and Sn salts and different sulphur compounds in air. The compositions of the products is elucidated from XRD and only thiourea is found to yield CTS without any unwanted CuSx or SnSy. Rietveld analysis of Cu2SnS3 is carried out to determine the structure parameters. XPS shows that Cu and Sn are in oxidation states +1 and +4, respectively. Morphology of powder as revealed by SEM shows the powder to be polycrystalline with porous structure. The band gap of CTS powder is found to be 1.1 eV from diffuse reflectance spectroscopy. Cu2SnS3 pellets are p-type with electrical conductivity of 10−2 S/cm. The thermal degradation and metal–ligand coordination in CTS precursor are studied with TGA/DSC and FT-IR, respectively, and a probable mechanism of formation of CTS has been suggested.

Original language	English
Pages (from-to)	410-415
Journal	Journal of Physics and Chemistry of Solids
Volume	75
Issue number	3
Early online date	11 Dec 2013
DOIs	https://doi.org/10.1016/j.jpcs.2013.11.012
Publication status	Published - Mar 2014
Externally published	Yes

Keywords

Chalcogenides
Chemical synthesis
X-ray diffraction
Electrical properties

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10.1016/j.jpcs.2013.11.012

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title = "Synthesis of earth-abundant Cu2SnS3 powder using solid state reaction",

abstract = "Cu2SnS3 (CTS) powder has been synthesized at 200 °C by solid state reaction of pastes consisting of Cu and Sn salts and different sulphur compounds in air. The compositions of the products is elucidated from XRD and only thiourea is found to yield CTS without any unwanted CuSx or SnSy. Rietveld analysis of Cu2SnS3 is carried out to determine the structure parameters. XPS shows that Cu and Sn are in oxidation states +1 and +4, respectively. Morphology of powder as revealed by SEM shows the powder to be polycrystalline with porous structure. The band gap of CTS powder is found to be 1.1 eV from diffuse reflectance spectroscopy. Cu2SnS3 pellets are p-type with electrical conductivity of 10−2 S/cm. The thermal degradation and metal–ligand coordination in CTS precursor are studied with TGA/DSC and FT-IR, respectively, and a probable mechanism of formation of CTS has been suggested.",

keywords = "Chalcogenides, Chemical synthesis, X-ray diffraction, Electrical properties",

author = "Devendra Tiwari and Chaudhuri, {Tapas K.} and T. Shripathi and U. Deshpande",

year = "2014",

month = mar,

doi = "10.1016/j.jpcs.2013.11.012",

language = "English",

volume = "75",

pages = "410--415",

journal = "Journal of Physics and Chemistry of Solids",

issn = "0022-3697",

publisher = "Elsevier",

number = "3",

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TY - JOUR

T1 - Synthesis of earth-abundant Cu2SnS3 powder using solid state reaction

AU - Tiwari, Devendra

AU - Chaudhuri, Tapas K.

AU - Shripathi, T.

AU - Deshpande, U.

PY - 2014/3

Y1 - 2014/3

N2 - Cu2SnS3 (CTS) powder has been synthesized at 200 °C by solid state reaction of pastes consisting of Cu and Sn salts and different sulphur compounds in air. The compositions of the products is elucidated from XRD and only thiourea is found to yield CTS without any unwanted CuSx or SnSy. Rietveld analysis of Cu2SnS3 is carried out to determine the structure parameters. XPS shows that Cu and Sn are in oxidation states +1 and +4, respectively. Morphology of powder as revealed by SEM shows the powder to be polycrystalline with porous structure. The band gap of CTS powder is found to be 1.1 eV from diffuse reflectance spectroscopy. Cu2SnS3 pellets are p-type with electrical conductivity of 10−2 S/cm. The thermal degradation and metal–ligand coordination in CTS precursor are studied with TGA/DSC and FT-IR, respectively, and a probable mechanism of formation of CTS has been suggested.

AB - Cu2SnS3 (CTS) powder has been synthesized at 200 °C by solid state reaction of pastes consisting of Cu and Sn salts and different sulphur compounds in air. The compositions of the products is elucidated from XRD and only thiourea is found to yield CTS without any unwanted CuSx or SnSy. Rietveld analysis of Cu2SnS3 is carried out to determine the structure parameters. XPS shows that Cu and Sn are in oxidation states +1 and +4, respectively. Morphology of powder as revealed by SEM shows the powder to be polycrystalline with porous structure. The band gap of CTS powder is found to be 1.1 eV from diffuse reflectance spectroscopy. Cu2SnS3 pellets are p-type with electrical conductivity of 10−2 S/cm. The thermal degradation and metal–ligand coordination in CTS precursor are studied with TGA/DSC and FT-IR, respectively, and a probable mechanism of formation of CTS has been suggested.

KW - Chalcogenides

KW - Chemical synthesis

KW - X-ray diffraction

KW - Electrical properties

U2 - 10.1016/j.jpcs.2013.11.012

DO - 10.1016/j.jpcs.2013.11.012

M3 - Article

SN - 0022-3697

VL - 75

SP - 410

EP - 415

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

IS - 3

ER -

Synthesis of earth-abundant Cu2SnS3 powder using solid state reaction

Abstract

Keywords

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