CHEMICAL DEPOSITION;
FILMS;
THIOACETAMIDE;
BISMUTH;
D O I:
10.1016/0254-0584(95)01538-8
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
Bi2S3 thin films have been deposited from an aqueous acidic bath using thioacetamide CH3-CS-NH2 (TAM) as a sulfide ion source. The preparative parameters are optimized and growth mechanism is discussed. X-ray diffractograms indicate that the films are polycrystalline in nature. A microstructural study has been carried out using a scanning electron microscopy technique. From optical absorption studies the energy bandgap of Bi2S3 is estimated to be 1.84 eV. Room temperature resistivity is of the order of 10(5) ohm cm.