Realizing high thermoelectric performance in magnetic field-assisted solution synthesized nanoporous SnSe integrated with quantum dots | |
Li, Shuang1; Hou, Yunxiang1; Zhang, Shihua1; Gong, Yaru1; Siddique, Suniya1; Li, Di4; Fang, Jun3; Nan, Pengfei2; Ge, Binghui2; Tang, Guodong1 | |
刊名 | CHEMICAL ENGINEERING JOURNAL |
2023 | |
卷号 | 451 |
关键词 | Thermoelectric SnSe Magnetic field Quantum dot Nanopore |
ISSN号 | 1385-8947 |
DOI | 10.1016/j.cej.2022.138637 |
通讯作者 | Li, Di(lidi@issp.ac.cn) ; Nan, Pengfei(npf@iphy.ac.cn) ; Tang, Guodong(tangguodong@njust.edu.cn) |
英文摘要 | SnSe is considered as one of the most promising candidates for thermoelectric application because of its attractive performance recently. In this work, a high magnetic field (5 T) is applied during the solution synthesis process. With the assist of the high magnetic field, nanopores and quantum dots (Sn, Se) are induced in the Ga doped p-type polycrystalline SnSe. It is found that an ultralow lattice thermal conductivity of 0.19 W m(-1) K-1 is caused by enhanced phonon scattering due to the presence of nanopores, quantum dots, lattice strain in dislocation networks. The enhanced density of states induced by Sn and Se quantum dots contributes to enhanced Seebeck coefficient. The enhanced electrical conductivity and Seebeck coefficient give rise to a significant enhancement in power factor over the whole temperature range. The maximum power factor reaches to 6.12 mu W cm(-1) K-2 at 873 K for the sample prepared under high magnetic field. Consequently, a peak ZT of 2.0 as well as a high average ZT of 0.74 (300-873 K) is achieved in 5 T-NP/QD Sn0.975Ga0.025Se sample. This study provides an important direction for developing high performance thermoelectric materials by structural manipulation with the aid of high magnetic field in solution chemistry. |
资助项目 | National Natural Science Foundation of China[52071182] ; Qinglan Project ; Young and Middle- aged Academic Leader of Jiangsu Province ; Fundamental Research Funds for the Central Universities ; High Magnetic Field Laboratory, CAS ; Young and Middle- aged Academic Leader of Jiangsu Province, the Fundamental Research Funds for the Central Universities[30921011107] |
WOS关键词 | ULTRAHIGH POWER-FACTOR ; POLYCRYSTALLINE SNSE ; FIGURE ; MERIT ; SOLIDIFICATION ; TRANSITION ; NANOSHEETS |
WOS研究方向 | Engineering |
语种 | 英语 |
出版者 | ELSEVIER SCIENCE SA |
WOS记录号 | WOS:000861047500004 |
资助机构 | National Natural Science Foundation of China ; Qinglan Project ; Young and Middle- aged Academic Leader of Jiangsu Province ; Fundamental Research Funds for the Central Universities ; High Magnetic Field Laboratory, CAS ; Young and Middle- aged Academic Leader of Jiangsu Province, the Fundamental Research Funds for the Central Universities |
内容类型 | 期刊论文 |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/129269] |
专题 | 中国科学院合肥物质科学研究院 |
通讯作者 | Li, Di; Nan, Pengfei; Tang, Guodong |
作者单位 | 1.Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, MIIT Key Lab Adv Met & Intermet Mat Technol, Nanjing 210094, Peoples R China 2.Anhui Univ, Inst Phys Sci & Informat Technol, Mat & Intelligent Sensing Lab Anhui Prov, Key Lab Struct Funct Regulat Hybrid Mat,Minist Edu, Hefei 230601, Peoples R China 3.Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme C, High Magnet Field Lab, Hefei 230031, Peoples R China 4.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Shuang,Hou, Yunxiang,Zhang, Shihua,et al. Realizing high thermoelectric performance in magnetic field-assisted solution synthesized nanoporous SnSe integrated with quantum dots[J]. CHEMICAL ENGINEERING JOURNAL,2023,451. |
APA | Li, Shuang.,Hou, Yunxiang.,Zhang, Shihua.,Gong, Yaru.,Siddique, Suniya.,...&Tang, Guodong.(2023).Realizing high thermoelectric performance in magnetic field-assisted solution synthesized nanoporous SnSe integrated with quantum dots.CHEMICAL ENGINEERING JOURNAL,451. |
MLA | Li, Shuang,et al."Realizing high thermoelectric performance in magnetic field-assisted solution synthesized nanoporous SnSe integrated with quantum dots".CHEMICAL ENGINEERING JOURNAL 451(2023). |
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