Effects of antimony content in MgAg0.97Sbx on output power and energy conversion efficiency

Zihang Liu; Jing Shuai; Jun Mao; Yumei Wang; Zhengyun Wang; Wei Cai; Jiehe Sui; Zhifeng Ren

doi:10.1016/j.actamat.2015.09.033

Effects of antimony content in MgAg_0.97Sb_x on output power and energy conversion efficiency

Zihang Liu
, Jing Shuai
, Jun Mao
, Yumei Wang
, Zhengyun Wang
, Wei Cai
, Jiehe Sui^*
, Zhifeng Ren

^*Corresponding author for this work

Harbin Institute of Technology
University of Houston
Chinese Academy of Sciences
Xihua University

Research output: Contribution to journal › Article › peer-review

64 Scopus citations

Abstract

We report the effect of Sb content in MgAg_0.97Sb_x (x = 0.99, 0.9925, 0.995, and 1.00) on output power and leg efficiency. Due to the doubling of carrier concentration with increasing the Sb content, power factor is enhanced around 20% over the whole temperature range. Simultaneously, the average thermoelectric figure of merit (ZT) is even enhanced a little in spite of the increased corresponding thermal conductivity. We further calculated the engineering power factor (PF)_eng, output power, engineering figure of merit (ZT)_eng and leg efficiency by taking into account of the Thomson effect. Assuming T_c = 300 K and T_h = 548 K, leg length ∼2 mm, an output power of ∼1.77 W cm^-2 and leg efficiency η of ∼10.1% are finally obtained for the optimized composition MgAg_0.97Sb_0.995.

Original language	English
Article number	12443
Pages (from-to)	17-23
Number of pages	7
Journal	Acta Materialia
Volume	102
DOIs	https://doi.org/10.1016/j.actamat.2015.09.033
State	Published - 1 Jan 2016
Externally published	Yes

Keywords

(PF)
(ZT)
Leg efficiency
MgAgSb
Output power

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10.1016/j.actamat.2015.09.033

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title = "Effects of antimony content in MgAg0.97Sbx on output power and energy conversion efficiency",

abstract = "We report the effect of Sb content in MgAg0.97Sbx (x = 0.99, 0.9925, 0.995, and 1.00) on output power and leg efficiency. Due to the doubling of carrier concentration with increasing the Sb content, power factor is enhanced around 20\% over the whole temperature range. Simultaneously, the average thermoelectric figure of merit (ZT) is even enhanced a little in spite of the increased corresponding thermal conductivity. We further calculated the engineering power factor (PF)eng, output power, engineering figure of merit (ZT)eng and leg efficiency by taking into account of the Thomson effect. Assuming Tc = 300 K and Th = 548 K, leg length ∼2 mm, an output power of ∼1.77 W cm-2 and leg efficiency η of ∼10.1\% are finally obtained for the optimized composition MgAg0.97Sb0.995.",

keywords = "(PF), (ZT), Leg efficiency, MgAgSb, Output power",

author = "Zihang Liu and Jing Shuai and Jun Mao and Yumei Wang and Zhengyun Wang and Wei Cai and Jiehe Sui and Zhifeng Ren",

note = "Publisher Copyright: {\textcopyright} 2015 Acta Materialia Inc.",

year = "2016",

month = jan,

day = "1",

doi = "10.1016/j.actamat.2015.09.033",

language = "英语",

volume = "102",

pages = "17--23",

journal = "Acta Materialia",

issn = "1359-6454",

publisher = "Acta Materialia Inc",

}

TY - JOUR

T1 - Effects of antimony content in MgAg0.97Sbx on output power and energy conversion efficiency

AU - Liu, Zihang

AU - Shuai, Jing

AU - Mao, Jun

AU - Wang, Yumei

AU - Wang, Zhengyun

AU - Cai, Wei

AU - Sui, Jiehe

AU - Ren, Zhifeng

PY - 2016/1/1

Y1 - 2016/1/1

N2 - We report the effect of Sb content in MgAg0.97Sbx (x = 0.99, 0.9925, 0.995, and 1.00) on output power and leg efficiency. Due to the doubling of carrier concentration with increasing the Sb content, power factor is enhanced around 20% over the whole temperature range. Simultaneously, the average thermoelectric figure of merit (ZT) is even enhanced a little in spite of the increased corresponding thermal conductivity. We further calculated the engineering power factor (PF)eng, output power, engineering figure of merit (ZT)eng and leg efficiency by taking into account of the Thomson effect. Assuming Tc = 300 K and Th = 548 K, leg length ∼2 mm, an output power of ∼1.77 W cm-2 and leg efficiency η of ∼10.1% are finally obtained for the optimized composition MgAg0.97Sb0.995.

AB - We report the effect of Sb content in MgAg0.97Sbx (x = 0.99, 0.9925, 0.995, and 1.00) on output power and leg efficiency. Due to the doubling of carrier concentration with increasing the Sb content, power factor is enhanced around 20% over the whole temperature range. Simultaneously, the average thermoelectric figure of merit (ZT) is even enhanced a little in spite of the increased corresponding thermal conductivity. We further calculated the engineering power factor (PF)eng, output power, engineering figure of merit (ZT)eng and leg efficiency by taking into account of the Thomson effect. Assuming Tc = 300 K and Th = 548 K, leg length ∼2 mm, an output power of ∼1.77 W cm-2 and leg efficiency η of ∼10.1% are finally obtained for the optimized composition MgAg0.97Sb0.995.

KW - (PF)

KW - (ZT)

KW - Leg efficiency

KW - MgAgSb

KW - Output power

UR - https://www.scopus.com/pages/publications/84942465435

U2 - 10.1016/j.actamat.2015.09.033

DO - 10.1016/j.actamat.2015.09.033

M3 - 文章

AN - SCOPUS:84942465435

SN - 1359-6454

VL - 102

SP - 17

EP - 23

JO - Acta Materialia

JF - Acta Materialia

M1 - 12443

ER -

Effects of antimony content in MgAg_0.97Sb_x on output power and energy conversion efficiency

Abstract

Keywords

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