A promising sputtering route for dense Cu2ZnSnS4 absorber films and their photovoltaic performance

Bao Tang Jheng; Po-Tsun Liu; Meng Chyi Wu

doi:10.1016/j.solmat.2014.05.033

A promising sputtering route for dense Cu₂ZnSnS₄ absorber films and their photovoltaic performance

Bao Tang Jheng, Po-Tsun Liu^*, Meng Chyi Wu

^*Corresponding author for this work

Department of Photonics

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

27 Scopus citations

Abstract

Copper zinc tin sulfide (Cu₂ZnSnS₄, CZTS) is highly abundant in nature. It is an important absorber material for the development of low-cost and sustainable next-generation I₂-II-IV-VI₄ thin-film solar cells because it has a the tunable direct band gap energy, inexpensive constituent elements, and a large absorption coefficient in the visible wavelength region. This work develops an efficient one-step vacuum-based approach to depositing CZTS films without the need to supply excess sulfur during/after deposition or to perform any post-sulfurization treatment. This one-step RF sputtering process produces CZTS films that are crystalline, phase-pure, dense, smooth, and continuous. Air Mass 1.5 G power conversion efficiencies of as high as 6% have been achieved with an antireflection coating, demonstrating that this new approach has great potential as a low-cost alternative for high-efficiency CZTS solar cell production.

Original language	English
Pages (from-to)	275-282
Number of pages	8
Journal	Solar Energy Materials and Solar Cells
Volume	128
DOIs	https://doi.org/10.1016/j.solmat.2014.05.033
State	Published - Sep 2014

Keywords

Antireflective coating
Photoelectric devices
Solar cell
Zinc oxide

UN SDGs

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

Access to Document

10.1016/j.solmat.2014.05.033

Cite this

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title = "A promising sputtering route for dense Cu2ZnSnS4 absorber films and their photovoltaic performance",

abstract = "Copper zinc tin sulfide (Cu2ZnSnS4, CZTS) is highly abundant in nature. It is an important absorber material for the development of low-cost and sustainable next-generation I2-II-IV-VI4 thin-film solar cells because it has a the tunable direct band gap energy, inexpensive constituent elements, and a large absorption coefficient in the visible wavelength region. This work develops an efficient one-step vacuum-based approach to depositing CZTS films without the need to supply excess sulfur during/after deposition or to perform any post-sulfurization treatment. This one-step RF sputtering process produces CZTS films that are crystalline, phase-pure, dense, smooth, and continuous. Air Mass 1.5 G power conversion efficiencies of as high as 6% have been achieved with an antireflection coating, demonstrating that this new approach has great potential as a low-cost alternative for high-efficiency CZTS solar cell production.",

keywords = "Antireflective coating, Photoelectric devices, Solar cell, Zinc oxide",

author = "Jheng, {Bao Tang} and Po-Tsun Liu and Wu, {Meng Chyi}",

year = "2014",

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doi = "10.1016/j.solmat.2014.05.033",

language = "English",

volume = "128",

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journal = "Solar Energy Materials and Solar Cells",

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T1 - A promising sputtering route for dense Cu2ZnSnS4 absorber films and their photovoltaic performance

AU - Jheng, Bao Tang

AU - Liu, Po-Tsun

AU - Wu, Meng Chyi

PY - 2014/9

Y1 - 2014/9

N2 - Copper zinc tin sulfide (Cu2ZnSnS4, CZTS) is highly abundant in nature. It is an important absorber material for the development of low-cost and sustainable next-generation I2-II-IV-VI4 thin-film solar cells because it has a the tunable direct band gap energy, inexpensive constituent elements, and a large absorption coefficient in the visible wavelength region. This work develops an efficient one-step vacuum-based approach to depositing CZTS films without the need to supply excess sulfur during/after deposition or to perform any post-sulfurization treatment. This one-step RF sputtering process produces CZTS films that are crystalline, phase-pure, dense, smooth, and continuous. Air Mass 1.5 G power conversion efficiencies of as high as 6% have been achieved with an antireflection coating, demonstrating that this new approach has great potential as a low-cost alternative for high-efficiency CZTS solar cell production.

AB - Copper zinc tin sulfide (Cu2ZnSnS4, CZTS) is highly abundant in nature. It is an important absorber material for the development of low-cost and sustainable next-generation I2-II-IV-VI4 thin-film solar cells because it has a the tunable direct band gap energy, inexpensive constituent elements, and a large absorption coefficient in the visible wavelength region. This work develops an efficient one-step vacuum-based approach to depositing CZTS films without the need to supply excess sulfur during/after deposition or to perform any post-sulfurization treatment. This one-step RF sputtering process produces CZTS films that are crystalline, phase-pure, dense, smooth, and continuous. Air Mass 1.5 G power conversion efficiencies of as high as 6% have been achieved with an antireflection coating, demonstrating that this new approach has great potential as a low-cost alternative for high-efficiency CZTS solar cell production.

KW - Antireflective coating

KW - Photoelectric devices

KW - Solar cell

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