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나노물질 및 화학반응 연구단
나노물질 및 화학반응 연구단
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Crystallization behaviour of co-sputtered Cu2ZnSnS4 precursor prepared by sequential sulfurization processes

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Title
Crystallization behaviour of co-sputtered Cu2ZnSnS4 precursor prepared by sequential sulfurization processes
Author(s)
Junhee Han; Seung Wook Shin; Gang, Myeong Gil; Kim, Jin Hyeok; Jeong Yong Lee
Publication Date
2013-03
Journal
NANOTECHNOLOGY, v.24, no.9, pp.95706 -
Publisher
IOP PUBLISHING LTD
Abstract
Cu2ZnSnS4 (CZTS) thin films were prepared by the sequential sulfurization of a co-sputtered precursor with a multitarget (Cu, ZnS, and SnS2) sputtering system. In order to investigate the crystallization behaviour of the thin films, the precursors were sulfurized in a tube furnace at different temperatures for different time durations. The Raman spectra of the sulfurized thin films showed that their crystallinity gradually improved with an increase in the sulfurization temperature and duration. However, transmission electron microscopy revealed an unexpected result—the precursor thin films were not completely transformed to the CZTS phase and showed the presence of uncrystallized material when sulfurized at 250–400 C for 60 min and at 500 C for 30 min. Thus, the crystallization of the co-sputtered precursor thin films showed a strong dependence on the sulfurization temperature and duration. The crystallization mechanism of the precursor thin films was understood on the basis of these results and has been described in this paper. The understanding of this mechanism may improve the standard preparation method for high-quality CZTS absorber layers.
URI
https://pr.ibs.re.kr/handle/8788114/1368
ISSN
0957-4484
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > Journal Papers (저널논문)
Files in This Item:
26_IBS CA1201-3_Nanotechnology_24_01_Crystallization behaviour of co-sputtered Cu2ZnSnS4 precursor prepared by sequential sulfurization processes.pdfDownload

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