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Influence on Structure and Optical Property of Pyrite(FeS_2) Thin Films by Sulfur Pressure

Xu Wenlei, Meng Liang, Liu Maosen(Department of Materials Science and Engineering, Zhejiang University, Hangzhou\ 310027)Received 5 June 1998, revised manuscript received 9 September 1998  
Iron thin films prepared by magnetron sputtering on glass substrates have been annealed at 400℃ in different sulfur atmosphere ranging from 40 to 100kPa for 20h.We study the influence of sulfur atmosphere on structure and optical property.It is found that the structure and optical property of pyrite films are optimized at 80kPa,its band gap is about 0\^9eV. PACC:7280G, 8115, 6110, 7865
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