基于cu /SnS/ZnS堆叠硫化结晶时间的Cu2ZnSnS4相演化

IF 2.2 4区材料科学 Q2 MATERIALS SCIENCE, CERAMICS

Journal of Asian Ceramic Societies Pub Date : 2023-01-02 DOI:10.1080/21870764.2023.2181280

N. Cruz Santiago, E. Ramírez Morales, T. González Sánchez, R. Castillo Palomera, L. Rojas Blanco, G. Hernández Galvez, E. Miranda Mandujano, C. Ricárdez Jiménez, A. Trujillo Narcía, Omar Sarracino Martínez

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引用次数: 1

摘要

摘要二元硫化物通过顺序热蒸发与堆叠顺序玻璃/CuS/SnS/ZnS沉积，随后进行硫化结晶过程，考虑两个热处理时间间隔，5分钟和20分钟。实施不同退火持续时间的目的是确定在纯凯石相中形成CZTS膜的最佳条件。经过退火处理后，薄膜显示出钾镁石相的结构特征。然而，XRD数据显示，长时间退火会导致钾镁石相的降解，导致形成痕量的CuS和Cu5Sn2S7。退火较短时间（在这种情况下为5分钟）的薄膜呈现出更致密、更均匀的表面形态、更好的优先取向度、0.302eV的小Urbach能量和更高的光敏性。退火持续时间5分钟和20分钟时，薄膜的带隙分别为1.46eV和1.53eV。图形摘要

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Evolution of the Cu2ZnSnS4 phase based on the sulfurization-crystallisation duration of the CuS/SnS/ZnS stack formed by thermal evaporation

ABSTRACT Binary sulfides were deposited by sequential thermal evaporation with the stacking order glass/CuS/SnS/ZnS and subsequently subjected to a sulfurization-crystallization process, considering two thermal treatment time intervals, 5 and 20 min. The objective of implementing different annealing durations was to identify the best conditions to form CZTS films in the pure kesterite phase. After being subjected to the annealing, the films show structural characteristics of the kesterite phase. However, XRD data showed that prolonged annealing causes degradation of the kesterite phase, leading to the formation of traces of CuS and Cu5Sn2S7. The films annealed for shorter duration, in this case 5 min, present a denser and more uniform surface morphology, better degree of preferential orientation, small Urbach energy of 0.302 eV, and higher photosensitivity. The band gap of the films was 1.46 eV and 1.53 eV for annealing durations 5 and 20 min, respectively. Graphical abstract

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来源期刊

Journal of Asian Ceramic Societies Materials Science-Ceramics and Composites

CiteScore

5.00

自引率

4.30%

发文量

审稿时长

10 weeks

期刊介绍： The Journal of Asian Ceramic Societies is an open access journal publishing papers documenting original research and reviews covering all aspects of science and technology of Ceramics, Glasses, Composites, and related materials. These papers include experimental and theoretical aspects emphasizing basic science, processing, microstructure, characteristics, and functionality of ceramic materials. The journal publishes high quality full papers, letters for rapid publication, and in-depth review articles. All papers are subjected to a fair peer-review process.