Deposition Time Effect on the Physical Properties of Cu₂ZnSnS₄ (CZTS) Thin Films Obtained by Electrodeposition Route onto Mo-coated Glass Substrates

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• 作者：Taoufik Slimani Tlemç ; ani^a ; El Bachir Benamar^a ; Fouzia Cherkaoui El Moursli^a ; Faiza Hajji^a ; Zineb Edfouf^a ; Mhamed Taibi^b ; Hicham Labrim^c ; Bouchra Belhorma^c ; Safae Aazou^d ; Guy Schmerber^e ; Karima Bouras^f ; Zouheir Sekkat^d ; Aziz Dinia^e ; Alexander Ulyashin^g ; Abdelilah Slaoui^f ; Mohammed Abd-Lefdil^a ; ^{a-lefdil@fsr.ac.ma" class="auth_mail" title="E-mail the corresponding author}
• 关键词：CZTS ; thin films ; electrodeposition ; sulfurization
• 刊名：Energy Procedia
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：84
• 期：Complete
• 页码：127-133
• 全文大小：621 K

文摘

Kesterite Cu₂ZnSnS₄ (CZTS) is a very promising absorber material for low cost and high efficiency thin film photovoltaic cells due to its direct band gap and to its high absorption coefficient. In this work, CZTS layers were deposited onto Mo-coated glass substrates using a single step electrodeposition process. Sulfurization treatment was performed under Argon atmosphere at 500 °C. The effect of the deposition time in the range of 10 min- 40 min was investigated. X-ray diffraction and Raman spectroscopy have confirmed the Kesterite structure of all deposited films. The surface morphology of the samples was examined using scanning electron microscopy. Cu/(Zn+Sn) of about 0.80, determined by energy dispersive X-ray spectroscopy, was reached for CZTS films electrodeposited during 30 min. Photoluminescence Spectroscopy showed a broad PL band centered around 1.45 eV.