中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 合肥物质科学研究院
  3. 中国科学院合肥物质科学研究院
Enhancing the thermoelectric performance of n-type Bi2Te2.7Se0.3 through the incorporation of Ag9AlSe6 inclusions

文献类型：期刊论文

作者Chen, Tao1,2; Ming, Hongwei1,2; Qin, Xiaoying1,2; Zhu, Chen1,2; Chen, Yong2; Ai, Li1,2; Li, Di1,2; Zhang, Yongsheng1,2; Xin, Hongxing2; Zhang, Jian1,2
刊名INORGANIC CHEMISTRY FRONTIERS
出版日期2022-08-23
ISSN号2052-1553
DOI10.1039/d2qi01232d
通讯作者Qin, Xiaoying(xyqin@issp.ac.cn) ; Li, Di() ; Zhang, Jian()
英文摘要Bi2Te2.7Se0.3 (BTS) is the best commercial n-type thermoelectric alloy at near room temperature. However, as compared to its p-type counterpart, its figure of merit (ZT) and energy conversion efficiency are relatively low. Thus, the improvement of ZT for n-type BTS is imperative. Here, we show that the incorporation of the Ag9AlSe6 phase into BTS can remarkably reduce lattice thermal conductivity, due to the intensified phonon scattering from Ag9AlSe6 nanoparticles and interfaces. Meanwhile, the Seebeck coefficient is enhanced due to the decreased carrier concentration. The suppressed thermal conductivity leads to ZT(max) = similar to 1.2 at 423 K for the BTS-0.35 vol% Ag9AlSe6 sample, a similar to 38% increase compared to that for pristine BTS. Consequently, a high average ZT(ave) similar to 1.1 (300 K-473 K) is reached, indicating that the incorporation of the Ag9AlSe6 nanophase is an effective way to improve the thermoelectric performance of BTS.
WOS关键词THERMAL TRANSPORT ; CU2SNSE3 ; FIGURE ; MERIT
资助项目Natural Science Foundation of China[1217040291] ; Natural Science Foundation of China[11674322] ; Natural Science Foundation of China[51672278] ; Natural Science Foundation of China[51972307] ; Anhui Provincial Natural Science Foundation[2008085MA18] ; HFIPS Director's Fund, Chinese Academy of Sciences[YZJJ202102]
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000850827800001
出版者ROYAL SOC CHEMISTRY
资助机构Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; HFIPS Director's Fund, Chinese Academy of Sciences
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/131932]  
专题中国科学院合肥物质科学研究院
通讯作者Qin, Xiaoying; Li, Di; Zhang, Jian
作者单位1.Univ Sci & Technol China, Hefei 230026, Peoples R China
2.Chinese Acad Sci, Inst Solid State Phys, Key Lab Photovolta & Energy Conservat Mat, HFIPS, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Tao,Ming, Hongwei,Qin, Xiaoying,et al. Enhancing the thermoelectric performance of n-type Bi2Te2.7Se0.3 through the incorporation of Ag9AlSe6 inclusions[J]. INORGANIC CHEMISTRY FRONTIERS,2022.
APA Chen, Tao.,Ming, Hongwei.,Qin, Xiaoying.,Zhu, Chen.,Chen, Yong.,...&Zhang, Jian.(2022).Enhancing the thermoelectric performance of n-type Bi2Te2.7Se0.3 through the incorporation of Ag9AlSe6 inclusions.INORGANIC CHEMISTRY FRONTIERS.
MLA Chen, Tao,et al."Enhancing the thermoelectric performance of n-type Bi2Te2.7Se0.3 through the incorporation of Ag9AlSe6 inclusions".INORGANIC CHEMISTRY FRONTIERS (2022).

入库方式： OAI收割

来源：合肥物质科学研究院

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。