Structural and optical properties of spray-pyrolysed Bi2S3 thin films

被引：30

作者：

Benramdane, N ^{[1
]}

Latreche, M ^{[1
]}

Tabet, H ^{[1
]}

Boukhalfa, M ^{[1
]}

Kebbab, Z ^{[1
]}

Bouzidi, A ^{[1
]}

机构：

[1] Univ Liabes Djillali Sidi Bel Abbes, Mat & Components Phys Lab, Sidi Bel Abbes 22000, Algeria

来源：

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 1999年 / 64卷 / 02期

关键词：

structural properties; optical properties; morphology;

D O I：

10.1016/S0921-5107(99)00174-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Thin layers of bismuth trisulfide (Bi2S3) have been prepared for the first time by the spray pyrolysis method on glass substrates from bismuth chloride (BiCl3) and thiourea (CS(NH2)(2)) solutions with a concentration of 0.2 M. Films deposited on substrate at 570 K have a polycrystalline structure with crystallites size in the order of 120 Angstrom. X-Ray characterization by grazing angles diffraction (GAD at 0.4 and 2 degrees shows crystalline structures in surface and volume. Diffraction spectra of these films are indexed in the orthorhombic system. Studies of optical absorption in the energy range 1.5-4 eV indicate an optical gap of 1.66 eV. The Hall effect measurements indicate a carrier concentration of n = 3.45 x 10(17) cm(-3). (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：84 / 87

页数：4

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