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稀土填充熱電材料Bi2Sb3Cex, Bi2Sb3Ndx的制備及電性能研究
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國家自然科學(xué)基金(50371058)(50471108); 廣東省自然科學(xué)基金(04011311)(021286); 廣東省科技計劃項目(2006B14001001); 深圳市基金(200450)


Preparation of Rare Earth Elements(REE)-stuffed Pyroelectric Materials Bi2Sb3Cex and Bi2Sb3Ndx and Research on Their Conductivity
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    摘要:

    在尿素-NaBr-KBr-甲酰胺體系中用脈沖電沉積的方法制備Bi2Sb3Cex及Bi2Sb3Ndx合金薄膜。通過X射線能譜(EDS)及X射線衍射(XRD)分別確定其化學(xué)成分、分析其晶型結(jié)構(gòu)。在最佳工藝條件下，稀土元素達到最大填充量，合金薄膜的組成為Bi2Sb3Ce2及Bi2Sb3Nd0.1。合金薄膜是由斜方六面體BiSb和四面立方結(jié)構(gòu)的單質(zhì)Ce、Nd組成。探索了不同稀土填充的Bi-Sb半導(dǎo)體熱電材料的電學(xué)性能

    Abstract:

    Bi2Sb3Cex and Bi2Sb3Ndx alloy films were prepared by PRC method (Pulse Reverse Current) in carbamide-NaBr-KBr-methanamide system. Their chemical composition was determined by EDS and the crystalline structure was analyzed by XRD. Under the optimal processing condition, there is a maximum filling quantity of the REE and the alloy films are composed of Bi2Sb3Ce2 and Bi2Sb3Nd0.1, which are rhombic hexahedral BiSb and tetrahedral cubic monoplasmatic Ce and Nd. The conductivity of Bi-Sb semiconductor pyroelectric materials stuffed by different REEs was also discussed

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龔曉鐘,曾艷芳,葉洞君,田 鵬,羅智宇,湯皎寧.稀土填充熱電材料Bi2Sb3Cex, Bi2Sb3Ndx的制備及電性能研究[J].稀有金屬材料與工程,2010,39(4):743~746.[Gong Xiaozhong, Zeng Yanfang, Ye Dongjun, Tian Peng, Luo Zhiyu, Tang Jiaoning. Preparation of Rare Earth Elements(REE)-stuffed Pyroelectric Materials Bi2Sb3Cex and Bi2Sb3Ndx and Research on Their Conductivity[J]. Rare Metal Materials and Engineering,2010,39(4):743~746.]
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  • 收稿日期:2009-04-25
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