Suppressed intrinsic excitation and enhanced thermoelectric performance in Ag: XBi0.5Sb1.5- xTe3
文献类型：期刊论文
| 作者 | Xing, Tong1,2; Liu, Ruiheng1; Hao, Feng1,2; Qiu, Pengfei1; Ren, Dudi1; Shi, Xun1; Chen, Lidong1 |
| 刊名 | Journal of Materials Chemistry C
 |
| 出版日期 | 2017 |
| 卷号 | 5期号:47页码:12619-12628 |
| ISSN号 | 20507534 |
| DOI | 10.1039/c7tc04573e |
| 英文摘要 | Bi2Te3-based alloys are the most well-known thermoelectric materials for roomerature applications. However, the maximum ZT values of Bi2Te3-based materials are usually achieved near room temperature. The ZT values dramatically drop above 400 K because of the intrinsic thermal excitation in Bi2Te3-based materials, which seriously restricts their applications as thermoelectric power generators. In this study, by doping a tiny amount of Ag into Bi0.5Sb1.5Te3, we successfully suppressed the intrinsic excitation in p-type Bi2Te3-based materials and shifted the ZT peak temperature to high temperatures. Eventually, due to the enhanced power factor and greatly depressed bipolar thermal conductivity at high temperature, a maximum ZT of 1.25 at 400 K was obtained in Ag0.002Bi0.5Sb1.498Te3, and an average ZT value of approximately 1.03 was achieved between 300 and 600 K. The theoretical energy conversion efficiency of the TE module fabricated with Ag0.002Bi0.5Sb1.498Te3achieves a maximum value of 11.0% when ΔT = 300 K, which makes p-type Bi2Te3-based devices attractive for applications in TE power generation. © 2017 The Royal Society of Chemistry. |
| 源URL | [http://ir.sic.ac.cn/handle/331005/25616]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China; 2.University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing; 100049, China |
| 推荐引用方式 GB/T 7714 | Xing, Tong,Liu, Ruiheng,Hao, Feng,et al. Suppressed intrinsic excitation and enhanced thermoelectric performance in Ag: XBi0.5Sb1.5- xTe3[J]. Journal of Materials Chemistry C,2017,5(47):12619-12628. |
| APA | Xing, Tong.,Liu, Ruiheng.,Hao, Feng.,Qiu, Pengfei.,Ren, Dudi.,...&Chen, Lidong.(2017).Suppressed intrinsic excitation and enhanced thermoelectric performance in Ag: XBi0.5Sb1.5- xTe3.Journal of Materials Chemistry C,5(47),12619-12628. |
| MLA | Xing, Tong,et al."Suppressed intrinsic excitation and enhanced thermoelectric performance in Ag: XBi0.5Sb1.5- xTe3".Journal of Materials Chemistry C 5.47(2017):12619-12628. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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