Synthesis and photoelectrochemical properties of (Cu2Sn) xZn3(1-x)S3 nanocrystal films

Yubin Chen; Chi Hung Chuang; Keng Chu Lin; Shaohua Shen; Christopher McCleese; Liejin Guo; Clemens Burda

doi:10.1021/jp500270d

Synthesis and photoelectrochemical properties of (Cu₂Sn) _xZn_3(1-x)S₃ nanocrystal films

Yubin Chen
, Chi Hung Chuang
, Keng Chu Lin
, Shaohua Shen
, Christopher McCleese
, Liejin Guo
, Clemens Burda

School of Energy and Power Engineering

Case Western Reserve University

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

26 Scopus citations

Abstract

This work provides new routes for developing efficient photoelectrodes for photoelectrochemical (PEC) water splitting using a low-cost electrophoretic film preparation method. A series of (Cu₂Sn)_xZn _3(1-x)S₃ (0 ≤ x ≤ 0.75) quaternary nanocrystals (NCs) with tunable optical band gaps are synthesized. Morphologies including particles, rods, and wires are obtained by tuning the composition of the NCs. (Cu₂Sn)_0.75Zn_0.75S₃ (Cu ₂ZnSnS₄) has a pure kesterite structure, but an increase in the Zn content results in a kesterite-wurtzite polytypism. (Cu ₂Sn)_xZn_3(1-x)S₃ films are fabricated from their colloidal solutions via electrophoretic deposition, and the PEC properties of these films with p-type character have been examined under water-splitting conditions. It is shown that the photocurrent varies as a function of film thickness as well as chemical composition. The produced (Cu₂Sn)_0.45Zn_1.65S₃ (x = 0.45) film has the highest photocurrent, and the incident photon to current conversion efficiency is improved compared with previously reported results of Cu ₂ZnSnS₄ photocathodes.

Original language	English
Pages (from-to)	11954-11963
Number of pages	10
Journal	Journal of Physical Chemistry C
Volume	118
Issue number	22
DOIs	https://doi.org/10.1021/jp500270d
State	Published - 5 Jun 2014

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@article{8166f95de6c74f1fa8ef6b1c86a06695,

title = "Synthesis and photoelectrochemical properties of (Cu2Sn) xZn3(1-x)S3 nanocrystal films",

abstract = "This work provides new routes for developing efficient photoelectrodes for photoelectrochemical (PEC) water splitting using a low-cost electrophoretic film preparation method. A series of (Cu2Sn)xZn 3(1-x)S3 (0 ≤ x ≤ 0.75) quaternary nanocrystals (NCs) with tunable optical band gaps are synthesized. Morphologies including particles, rods, and wires are obtained by tuning the composition of the NCs. (Cu2Sn)0.75Zn0.75S3 (Cu 2ZnSnS4) has a pure kesterite structure, but an increase in the Zn content results in a kesterite-wurtzite polytypism. (Cu 2Sn)xZn3(1-x)S3 films are fabricated from their colloidal solutions via electrophoretic deposition, and the PEC properties of these films with p-type character have been examined under water-splitting conditions. It is shown that the photocurrent varies as a function of film thickness as well as chemical composition. The produced (Cu2Sn)0.45Zn1.65S3 (x = 0.45) film has the highest photocurrent, and the incident photon to current conversion efficiency is improved compared with previously reported results of Cu 2ZnSnS4 photocathodes.",

author = "Yubin Chen and Chuang, \{Chi Hung\} and Lin, \{Keng Chu\} and Shaohua Shen and Christopher McCleese and Liejin Guo and Clemens Burda",

year = "2014",

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doi = "10.1021/jp500270d",

language = "英语",

volume = "118",

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journal = "Journal of Physical Chemistry C",

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publisher = "American Chemical Society",

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T1 - Synthesis and photoelectrochemical properties of (Cu2Sn) xZn3(1-x)S3 nanocrystal films

AU - Chen, Yubin

AU - Chuang, Chi Hung

AU - Lin, Keng Chu

AU - Shen, Shaohua

AU - McCleese, Christopher

AU - Guo, Liejin

AU - Burda, Clemens

PY - 2014/6/5

Y1 - 2014/6/5

N2 - This work provides new routes for developing efficient photoelectrodes for photoelectrochemical (PEC) water splitting using a low-cost electrophoretic film preparation method. A series of (Cu2Sn)xZn 3(1-x)S3 (0 ≤ x ≤ 0.75) quaternary nanocrystals (NCs) with tunable optical band gaps are synthesized. Morphologies including particles, rods, and wires are obtained by tuning the composition of the NCs. (Cu2Sn)0.75Zn0.75S3 (Cu 2ZnSnS4) has a pure kesterite structure, but an increase in the Zn content results in a kesterite-wurtzite polytypism. (Cu 2Sn)xZn3(1-x)S3 films are fabricated from their colloidal solutions via electrophoretic deposition, and the PEC properties of these films with p-type character have been examined under water-splitting conditions. It is shown that the photocurrent varies as a function of film thickness as well as chemical composition. The produced (Cu2Sn)0.45Zn1.65S3 (x = 0.45) film has the highest photocurrent, and the incident photon to current conversion efficiency is improved compared with previously reported results of Cu 2ZnSnS4 photocathodes.

AB - This work provides new routes for developing efficient photoelectrodes for photoelectrochemical (PEC) water splitting using a low-cost electrophoretic film preparation method. A series of (Cu2Sn)xZn 3(1-x)S3 (0 ≤ x ≤ 0.75) quaternary nanocrystals (NCs) with tunable optical band gaps are synthesized. Morphologies including particles, rods, and wires are obtained by tuning the composition of the NCs. (Cu2Sn)0.75Zn0.75S3 (Cu 2ZnSnS4) has a pure kesterite structure, but an increase in the Zn content results in a kesterite-wurtzite polytypism. (Cu 2Sn)xZn3(1-x)S3 films are fabricated from their colloidal solutions via electrophoretic deposition, and the PEC properties of these films with p-type character have been examined under water-splitting conditions. It is shown that the photocurrent varies as a function of film thickness as well as chemical composition. The produced (Cu2Sn)0.45Zn1.65S3 (x = 0.45) film has the highest photocurrent, and the incident photon to current conversion efficiency is improved compared with previously reported results of Cu 2ZnSnS4 photocathodes.

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U2 - 10.1021/jp500270d

DO - 10.1021/jp500270d

M3 - 文章

AN - SCOPUS:84901992666

SN - 1932-7447

VL - 118

SP - 11954

EP - 11963

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 22

ER -

Synthesis and photoelectrochemical properties of (Cu₂Sn) _xZn_3(1-x)S₃ nanocrystal films

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