对铋碲合金电沉积过程进行了研究,并分析了温度和硝酸浓度对铋碲共沉积的影响.结果表明,Bi3+和HTeO2+合溶液中的电沉积是分阶段进行的.溶液中HTeO2+的存在阻碍了Bi3+的电沉积.铋碲共沉积的速度随温度的升高以及溶液中硝酸浓度的增加而加速.实验中还研究了沉积电位对铋碲组成的影响.采用ESEM分析了铋碲纳米线阵列温差电材料的形貌.
The electrodeposition process of bismuth-tellurium co-deposition was studied, and the effects of temperature and HNO3 concentration on the co-deposition process were also analyzed. Based on the work, n-type bismuth-tellurium nanowire array thermoelectric materials were fabricated through DC electrodeposition by using anodic alumina template with a pore diameter of 50nm as the cathode. The results show that electrodeposition potential has great effect on the compositon of bismuth-tellurium alloy.
参考文献
| [1] | 高敏. 温差电转换及其应用. 北京: 北京兵器出版社, 1996. [2] Nolas G S, Sharp J, Goldsmid H. J. Thermoelectrics, Basic Principles and New Materials Developments. Springer Verlag, 2001. [3] Chen G, Yang B, Liu W L. 20th International Conference on Thermoelectrics, 2001, Beijing, China. [4] Lieber C M. The 18th International Conference on Thermoelectrics, 1999, Baltimore, USA. [5] Fleurial J P, Snyder G J, Patel J, et al. 20th International Conference on Thermoelectrics, 2001, Beijing, China. [6] Kishi M, Yamamoto M, et al. The 18th International Conference on Thermoelectrics, 1999, Baltimore, USA. [7] Heremans J, Thrush C M. Physical Review B, 1999, 95 (19): 12579. |
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