Phase transformation and grain growth in spray deposited wurtzite CuInS2 films

被引：2
|
作者：
Pradeepkumar, Maurya Sandeep [1 ]
Basu, Joysurya [2 ]
Ahmad, Mohammed Imteyaz [1 ]
机构：
[1] Indian Inst Technol BHU, Dept Ceram Engn, Varanasi 221005, UP, India
[2] Indian Inst Technol BHU, Dept Met Engn, Varanasi 221005, UP, India
来源：
CERAMICS INTERNATIONAL | 2022年 / 48卷 / 23期
关键词：
Wurtzite; Chalcopyrite; Phase transformation; Grain growth; CuInS2; FILM SOLAR-CELLS; THIN-FILMS; NANOCRYSTALS; EFFICIENCY; SELENIZATION; PRECURSORS; SE;
D O I：
10.1016/j.ceramint.2022.09.032
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We report the processing of large-grained chalcopyrite-CuIn(S,Se)2 (ch-CISSe) films using spray deposition of wurtzite-CuInS2 (wz-CIS) nanoparticle ink and subsequent selenization. Wurtzite to chalcopyrite phase trans-formation and grain growth were studied at varying selenization temperatures of 350, 400, 450, 500 and 550 degrees C for 15 min. On annealing in selenium (Se) atmosphere at 400 degrees C, the film transformed from wurtzite to chal-copyrite phase completely, while the grain growth took place at higher temperatures (500-550 degrees C), requiring greater amounts of Se substitution (Se/Se + S > 0.7). Differential scanning calorimetry (DSC) indicates that the phase transformation temperature is sensitive to the heating rate and has a second-order character.
引用
收藏
页码：35633 / 35641
页数：9
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