Synthesis and Characterization of CZTS Thin Films by Sol-Gel Method without Sulfurization

Autor: Xiaoqi Yu, Aobo Ren, Fogen Wang, Ci Wang, Jingquan Zhang, Wenwu Wang, Lili Wu, Wei Li, Guanggen Zeng, Lianghuan Feng
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: International Journal of Photoenergy, Vol 2014 (2014)
Druh dokumentu: article
ISSN: 1110-662X
1687-529X
DOI: 10.1155/2014/861249
Popis: One process of layer-by-layer sol-gel deposition without sulfurization was developed. The CZTS films with 1.2 μm and the sulfur ratio of ~48% were prepared and their characteristics were measured. The as-deposited and annealed films are of Kesterite structure. The as-deposited films do not present obvious electric conduction type. However, the annealed 9-LAY-ANN film is p-type conduction and has sheet resistance of 4.08 kΩ/□ and resistivity of 4.896 × 10−1 Ω·cm. The optic energy gap is 1.50 eV for as-deposited films and is 1.46 eV after being annealed. The region deposited by using Lo-Con solution is more compact than that by the Hi-Con solution from SEM morphology images.
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