Preparation of Cu2ZnSnS4 thin films by sulfurizing electroplated precursors

Autor: Yuki Kubo, Hideaki Araki, Makoto Yamazaki, Koichiro Oishi, Akiko Takeuchi, Win Shwe Maw, Aya Mikaduki, Kazuo Jimbo, Hironori Katagiri
Rok vydání: 2009
Předmět:
Zdroj: Solar Energy Materials and Solar Cells. 93:996-999
ISSN: 0927-0248
DOI: 10.1016/j.solmat.2008.11.045
Popis: Cu 2 ZnSnS 4 (CZTS) thin films were prepared by sulfurizing precursors deposited by electroplating. The precursors (Cu/Sn/Zn stacked layers) were deposited by electroplating sequentially onto Mo-coated glass substrates. Aqueous solutions containing copper sulfate for Cu plating, tin sulfate for Sn plating and zinc sulfate for Zn plating were used as the electrolytes. The precursors were sulfurized by annealing with sulfur at temperatures of 300, 400, 500 and 600 °C in an N 2 gas atmosphere. The X-ray diffraction peaks attributable to CZTS were detected in thin films sulfurized at temperatures above 400 °C. A photovoltaic cell using a CZTS thin film produced by sulfurizing an electroplated Sn-rich precursor at 600 °C exhibited an open-circuit voltage of 262 mV, a short-circuit current of 9.85 mA/cm 2 and an efficiency of 0.98%.
Databáze: OpenAIRE