Improved Thermoelectric Properties of BiSbTe-AgBiSe2 Alloys by Suppressing Bipolar Excitation
文献类型：期刊论文
| 作者 | Shi, Fanfan; Wang, Hongxiang; Zhang, Qiang; Tan, Xiaojian; Yin, Yinong; Hu, Haoyang; Li, Zhixiang; Noudem, Jacques G.; Liu, Guoqiang; Jiang, Jun |
| 刊名 | ACS APPLIED ENERGY MATERIALS
 |
| 出版日期 | 2021 |
| 卷号 | 4期号:3页码:2944-2950 |
| 关键词 | BISMUTH-ANTIMONY TELLURIDE TRANSPORT-PROPERTIES BAND-GAP PERFORMANCE FIGURE NANOCOMPOSITES ENHANCEMENT COMPOSITES EFFICIENCY DENSITY |
| 英文摘要 | Bismuth telluride alloys are the only commercialized thermoelectric materials, which have successfully realized the practical applications of active cooling and waste heat harvesting near room temperature. However, the drawbacks of intermediate ZT values and brittle nature of zone-melted materials have limited their future development. Herein, we show that AgBiSe2 alloying is an effective approach to improve both the thermoelectric and mechanical performance of sintered Bi0.48Sb1.52Te3 materials. The addition of AgBiSe2 can not only suppress the bipolar effect by increasing the hole concentration but also decrease the lattice thermal conductivity by introducing various phonon scattering centers. These effects enable a peak ZT value of 1.1 at 375 K and an average value of 0.94 between 300 and 500 K in the composite of Bi0.48Sb1.52Te3-0.3 wt % AgBiSe2. Moreover, the addition of AgBiSe2 can also enhance the Vickers hardness, which reaches 0.75 GPa, 42% times higher than that of pristine zone-melted BiSbTe. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/22076]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Jiang, J (corresponding author), Univ Chinese Acad Sci, Beijing 101408, Peoples R China. 2.Jiang, J (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China. 3.Tan, XJ |
| 推荐引用方式 GB/T 7714 | Shi, Fanfan,Wang, Hongxiang,Zhang, Qiang,et al. Improved Thermoelectric Properties of BiSbTe-AgBiSe2 Alloys by Suppressing Bipolar Excitation[J]. ACS APPLIED ENERGY MATERIALS,2021,4(3):2944-2950. |
| APA | Shi, Fanfan.,Wang, Hongxiang.,Zhang, Qiang.,Tan, Xiaojian.,Yin, Yinong.,...&Jiang, Jun.(2021).Improved Thermoelectric Properties of BiSbTe-AgBiSe2 Alloys by Suppressing Bipolar Excitation.ACS APPLIED ENERGY MATERIALS,4(3),2944-2950. |
| MLA | Shi, Fanfan,et al."Improved Thermoelectric Properties of BiSbTe-AgBiSe2 Alloys by Suppressing Bipolar Excitation".ACS APPLIED ENERGY MATERIALS 4.3(2021):2944-2950. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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