Stabilizing the Optimal Carrier Concentration for High Thermoelectric Efficiency

被引:400
作者
Pei, Yanzhong [1 ]
LaLonde, Aaron D. [1 ]
Heinz, Nicholas A. [1 ]
Shi, Xiaoya [2 ]
Iwanaga, Shiho [1 ]
Wang, Heng [1 ]
Chen, Lidong [2 ]
Snyder, G. Jeffrey [1 ]
机构
[1] CALTECH, Dept Mat Sci, Pasadena, CA 91125 USA
[2] Chinese Acad Sci, ACS Key Lab Mat Energy Convers, Shanghai Inst Ceram, Shanghai 200050, Peoples R China
关键词
thermoelectric properties; optimal carrier concentrations; band engineering; thermoelectric efficiency; LATTICE THERMAL CONDUCTIVITY; IV-VI-COMPOUNDS; LEAD-TELLURIDE; ALLOY SYSTEM; OPTICAL PROPERTIES; HIGH TEMPERATURES; BAND-STRUCTURE; VALENCE-BAND; PBTE; TRANSPORT;
D O I
10.1002/adma.201103153
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The band structure of PbTe can be manipulated by alloying with MgTe to control the band degeneracy. This is used to stabilize the optimal carrier concentration, making it less temperature dependent, demonstrating a new strategy to improve overall thermoelectric efficiency over a broad temperature range.
引用
收藏
页码:5674 / +
页数:6
相关论文
共 55 条
[1]   LATTICE THERMAL CONDUCTIVITY OF DISORDERED SEMICONDUCTOR ALLOYS AT HIGH TEMPERATURES [J].
ABELES, B .
PHYSICAL REVIEW, 1963, 131 (05) :1906-&
[2]  
Airapetyants S.V., 1966, FIZ TVERD TELA+, V8, P1069
[3]   VALENCE BANDS IN LEAD TELLURIDE [J].
ALLGAIER, RS .
JOURNAL OF APPLIED PHYSICS, 1961, 32 :2185-&
[4]  
Andreev A. A., 1968, Journal de Physique, V29, pc4, DOI 10.1051/jphyscol:1968408
[5]  
ANDREEV AA, 1967, SOV PHYS SEMICOND+, V1, P145
[6]   Cooling, heating, generating power, and recovering waste heat with thermoelectric systems [J].
Bell, Lon E. .
SCIENCE, 2008, 321 (5895) :1457-1461
[7]   ELECTRONIC CONTRIBUTION TO THE THERMAL-CONDUCTIVITY OF NARROW-BAND GAP SEMICONDUCTORS - EFFECT OF NON-PARABOLICITY OF BANDS [J].
BHANDARI, CM ;
ROWE, DM .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1985, 18 (05) :873-884
[8]  
Bhandari CM., 1995, CRC Handbook of Thermoelectrics, P43
[9]  
Biswas K, 2011, NAT CHEM, V3, P160, DOI [10.1038/nchem.955, 10.1038/NCHEM.955]
[10]   THERMODYNAMIC PROPERTIES OF IV-VI-COMPOUNDS - LEAD-CHALCOGENIDES [J].
BLACHNIK, R ;
IGEL, R .
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES, 1974, B 29 (9-10) :625-629