GSTDTAP  > 地球科学
DOI10.1126/science.aax7792
High thermoelectric cooling performance of n-type Mg3Bi2-based materials
Mao, Jun1,2; Zhu, Hangtian1,2; Ding, Zhiwei3; Liu, Zihang1,2; Gamage, Geethal Amila1,2; Chen, Gang3; Ren, Zhifeng1,2
2019-08-02
发表期刊SCIENCE
ISSN0036-8075
EISSN1095-9203
出版年2019
卷号365期号:6452页码:495-498
文章类型Article
语种英语
国家USA
英文摘要

Thermoelectric materials have a large Peltier effect, making them attractive for solid-state cooling applications. Bismuth telluride (Bi2Te3)-based alloys have remained the state-of-the-art room-temperature materials for many decades. However, cost partially limited wider use of thermoelectric cooling devices because of the large amounts of expensive tellurium required. We report n-type magnesium bismuthide (Mg3Bi2)-based materials with a peak figure of merit (ZT) of similar to 0.9 at 350 kelvin, which is comparable to the commercial bismuth telluride selenide (Bi2Te3-xSex) but much cheaper. A cooling device made of our material and p-type bismuth antimony telluride (Bi0.5Sb1.5Te3) has produced a large temperature difference of similar to 91 kelvin at the hot-side temperature of 350 kelvin. n-type Mg3Bi2-based materials are promising for thermoelectric cooling applications.


领域地球科学 ; 气候变化 ; 资源环境
收录类别SCI-E
WOS记录号WOS:000485768400047
WOS关键词TRANSPORT-PROPERTIES ; ZINTL COMPOUNDS ; BAND-GAP ; ENHANCEMENT ; SCATTERING ; EFFICIENCY ; FIGURE ; CHARGE ; MERIT
WOS类目Multidisciplinary Sciences
WOS研究方向Science & Technology - Other Topics
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/201988
专题地球科学
资源环境科学
气候变化
作者单位1.Univ Houston, Dept Phys, Houston, TX 77204 USA;
2.Univ Houston, Texas Ctr Superconduct TcSUH, Houston, TX 77204 USA;
3.MIT, Dept Mech Engn, Cambridge, MA 02139 USA
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GB/T 7714
Mao, Jun,Zhu, Hangtian,Ding, Zhiwei,et al. High thermoelectric cooling performance of n-type Mg3Bi2-based materials[J]. SCIENCE,2019,365(6452):495-498.
APA Mao, Jun.,Zhu, Hangtian.,Ding, Zhiwei.,Liu, Zihang.,Gamage, Geethal Amila.,...&Ren, Zhifeng.(2019).High thermoelectric cooling performance of n-type Mg3Bi2-based materials.SCIENCE,365(6452),495-498.
MLA Mao, Jun,et al."High thermoelectric cooling performance of n-type Mg3Bi2-based materials".SCIENCE 365.6452(2019):495-498.
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