Electrodeposition and characterization of thermoelectric Bi2Se3 thin films

• Published in: International journal of minerals, metallurgy and materials Vol. 17; no. 1; pp. 104 - 107
• Main Authors: Li, Xiao-long, Cai, Ke-feng, Li, Hui, Wang, Ling, Zhou, Chi-wei
• Format: Journal Article
• Language: English
• Published: Beijing University of Science and Technology Beijing 01.02.2010; Springer Nature B.V
• Subjects: Annealing; Argon; Calomel electrode; Ceramics; Characterization and Evaluation of Materials; Chemistry and Materials Science; Cold isostatic pressing; Cold pressing; Composites; Corrosion and Coatings; Electrodes; Glass; Glass substrates; Indium; Indium tin oxides; Materials Science; Metallic Materials; Natural Materials; Room temperature; Selenium dioxide; Substrates; Surfaces and Interfaces; Thermoelectricity; Thin Films; Tin; Titanium; Tribology; X-ray diffraction; 射线衍射分析; 氧化物涂层; 热电性能; 玻璃衬底; 硝酸溶液; 薄膜表征; 起始原料; 退火处理; electrodeposition; cold isostatic pressing; thermoelectric properties; bismuth selenide; thermoelectric thin films
• ISSN: 1674-4799; 1869-103X
• DOI: 10.1007/s12613-010-0118-x

Bi2Se3 thin films were electrochemically deposited on Ti and indium tin oxide-coated glass substrates, respectively, at room temperature, using Bi（NO3）3·5H2O and SeO2 as starting materials in diluted HNO3 solution. A conventional three-electrode cell was used with a platinum sheet as a counter electrode, and a saturated calomel electrode was used as a reference electrode. The films were annealed in argon atmosphere. The influence of cold isostatic pressing before annealing on the microstructure and thermoelectric properties of the films was investigated. X-ray diffraction analysis indicates that the film grown on the indium tin oxide-coated glass substrate is pure rhombohedral Bi2Se3, and the film grown on the Ti substrate consists of both rhombohedral and orthorhombic Bi2Se3.