Cu 2 ZnSnS 4 absorption layers with controlled phase purity

Chia-Ying Su, Chiu Yen Chiu, Jyh-Ming Ting

Research output: Contribution to journalArticle

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Abstract

We report the synthesis and characterization of Cu2 ZnSnS4 (CZTS) with controlled phase purity. The precursor was first prepared using sequential electrodeposition of Cu, Zn, and Sn in different orders. The Cu/(Sn+Zn) ratio in each stacking order was also varied. The precursor was subjected to annealing at 200 °C and sulfurization at 500 °C in a 5%-H2 S/Ar atmosphere for the formation of CZTS. The phase evolutions during the electrodeposition and annealing stages, and the final phase formation at the sulfurization stage were examined using both x-ray diffractometry and Raman spectroscopy, both of which are shown to be complimentary tools for phase identification. Detailed growth path is therefore reported. We also demonstrate by controlling the stacking order and the Cu/(Sn+Zn) ratio, CZTS with a phase purity as high as 93% is obtained.

Original languageEnglish
Article number9291
JournalScientific reports
Volume5
DOIs
Publication statusPublished - 2015 Mar 24

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electrodeposition
purity
annealing
x ray spectroscopy
Raman spectroscopy
atmospheres
synthesis

All Science Journal Classification (ASJC) codes

  • General

Cite this

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abstract = "We report the synthesis and characterization of Cu2 ZnSnS4 (CZTS) with controlled phase purity. The precursor was first prepared using sequential electrodeposition of Cu, Zn, and Sn in different orders. The Cu/(Sn+Zn) ratio in each stacking order was also varied. The precursor was subjected to annealing at 200 °C and sulfurization at 500 °C in a 5{\%}-H2 S/Ar atmosphere for the formation of CZTS. The phase evolutions during the electrodeposition and annealing stages, and the final phase formation at the sulfurization stage were examined using both x-ray diffractometry and Raman spectroscopy, both of which are shown to be complimentary tools for phase identification. Detailed growth path is therefore reported. We also demonstrate by controlling the stacking order and the Cu/(Sn+Zn) ratio, CZTS with a phase purity as high as 93{\%} is obtained.",
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Cu 2 ZnSnS 4 absorption layers with controlled phase purity. / Su, Chia-Ying; Chiu, Chiu Yen; Ting, Jyh-Ming.

In: Scientific reports, Vol. 5, 9291, 24.03.2015.

Research output: Contribution to journalArticle

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