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Journal articles on the topic 'Α-MgAgSb'

Author: Grafiati
Published: 23 September 2022
Last updated: 5 November 2022

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1

Camut, Julia, Ignacio Barber Rodriguez, Hasbuna Kamila, Aidan Cowley, Reinhard Sottong, Eckhard Mueller, and Johannes de Boor. "Insight on the Interplay between Synthesis Conditions and Thermoelectric Properties of α-MgAgSb." Materials 12, no. 11 (June 7, 2019): 1857. http://dx.doi.org/10.3390/ma12111857.

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α-MgAgSb is a very promising thermoelectric material with excellent thermoelectric properties between room temperature and 300 °C, a range where few other thermoelectric materials show good performance. Previous reports rely on a two-step ball-milling process and/or time-consuming annealing. Aiming for a faster and scalable fabrication route, herein, we investigated other potential synthesis routes and their impact on the thermoelectric properties of α-MgAgSb. We started from a gas-atomized MgAg precursor and employed ball-milling only in the final mixing step. Direct comparison of high energy ball-milling and planetary ball-milling revealed that high energy ball milling already induced formation of MgAgSb, while planetary ball milling did not. This had a strong impact on the microstructure and secondary phase fraction, resulting in superior performance of the high energy ball milling route with an attractive average thermoelectric figure of merit of z T avg = 0.9. We also show that the formation of undesired secondary phases cannot be avoided by a modification of the sintering temperature after planetary ball milling, and discuss the influence of commonly observed secondary phases on the carrier mobility and on the thermoelectric properties of α-MgAgSb.
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2

Liu, Zihang, Jun Mao, Jiehe Sui, and Zhifeng Ren. "High thermoelectric performance of α-MgAgSb for power generation." Energy & Environmental Science 11, no. 1 (2018): 23–44. http://dx.doi.org/10.1039/c7ee02504a.

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3

Lei, Jingdan, De Zhang, Weibao Guan, Zhenxiang Cheng, Chao Wang, and Yuanxu Wang. "Engineering electrical transport in α-MgAgSb to realize high performances near room temperature." Physical Chemistry Chemical Physics 20, no. 24 (2018): 16729–35. http://dx.doi.org/10.1039/c8cp02186d.

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4

Liao, Yuntiao, Jun-Liang Chen, Chengyan Liu, Jisheng Liang, Qi Zhou, Ping Wang, and Lei Miao. "Sintering pressure as a “scalpel” to enhance the thermoelectric performance of MgAgSb." Journal of Materials Chemistry C 10, no. 9 (2022): 3360–67. http://dx.doi.org/10.1039/d1tc05617d.

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P-type nanostructured α-MgAgSb by virtue of its intrinsically low thermal conductivity and environment friendly characteristics has drawn a great deal of attention for low temperature power generation.
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5

Liu, Zihang, Weihong Gao, Xianfu Meng, Xiaobo Li, Jun Mao, Yumei Wang, Jing Shuai, Wei Cai, Zhifeng Ren, and Jiehe Sui. "Mechanical properties of nanostructured thermoelectric materials α-MgAgSb." Scripta Materialia 127 (January 2017): 72–75. http://dx.doi.org/10.1016/j.scriptamat.2016.08.037.

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6

Liu, Zihang, Huiyuan Geng, Jun Mao, Jing Shuai, Ran He, Chao Wang, Wei Cai, Jiehe Sui, and Zhifeng Ren. "Understanding and manipulating the intrinsic point defect in α-MgAgSb for higher thermoelectric performance." Journal of Materials Chemistry A 4, no. 43 (2016): 16834–40. http://dx.doi.org/10.1039/c6ta06832d.

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Thorough first-principles calculations reveal that an Ag vacancy is the dominant intrinsic point defect in α-MgAgSb. Point-defect engineering can be realized via rationally controlling the hot press temperature due to the recovery effect.
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7

Gao, Weihong, Xiaoyang Yi, Bo Cui, Zhenyou Wang, Jin Huang, Jiehe Sui, and Zihang Liu. "The critical role of boron doping in the thermoelectric and mechanical properties of nanostructured α-MgAgSb." Journal of Materials Chemistry C 6, no. 36 (2018): 9821–27. http://dx.doi.org/10.1039/c8tc03646b.

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The ineffectiveness of boron doping to enhance thermoelectric performance lied in the introduced perturbation to the valence band. Due to the significant solution strengthening by boron doping, the micro-hardness values of α-MgAgSb have been largely increased.
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8

Zhou, Gang, Ji-wen Xu, and Guang-hui Rao. "Hole doped α-MgAgSb as potential low temperature thermoelectric materials." Physics Letters A 383, no. 26 (September 2019): 125833. http://dx.doi.org/10.1016/j.physleta.2019.07.021.

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9

Xin, Jiwu, Junyou Yang, Sihui Li, Abdul Basit, Bingyang Sun, Suwei Li, Qiang Long, Xin Li, Ying Chen, and Qinghui Jiang. "Thermoelectric Performance of Rapidly Microwave-Synthesized α-MgAgSb with SnTe Nanoinclusions." Chemistry of Materials 31, no. 7 (February 4, 2019): 2421–30. http://dx.doi.org/10.1021/acs.chemmater.8b05014.

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10

Ying, Pingjun, Xiaohua Liu, Chenguang Fu, Xianqiang Yue, Hanhui Xie, Xinbing Zhao, Wenqing Zhang, and Tiejun Zhu. "High Performance α-MgAgSb Thermoelectric Materials for Low Temperature Power Generation." Chemistry of Materials 27, no. 3 (January 26, 2015): 909–13. http://dx.doi.org/10.1021/cm5041826.

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11

Tan, Xiaojian, Ling Wang, Hezhu Shao, Song Yue, Jingtao Xu, Guoqiang Liu, Haochuan Jiang, and Jun Jiang. "Improving Thermoelectric Performance of α-MgAgSb by Theoretical Band Engineering Design." Advanced Energy Materials 7, no. 18 (May 23, 2017): 1700076. http://dx.doi.org/10.1002/aenm.201700076.

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12

Li, Jingyu, Yuanxu Wang, Yuli Yan, Chao Wang, and Lili Li. "Pressure effect on the electronic structure and thermoelectric properties of α-MgAgSb." Computational Materials Science 155 (December 2018): 450–56. http://dx.doi.org/10.1016/j.commatsci.2018.08.003.

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13

Zhang, Ting, Baokun Dong, and Xuan Wang. "Optimization of the thermoelectric performance of α-MgAgSb-based materials by Zn-doping." Journal of Materials Science 56, no. 24 (May 19, 2021): 13715–22. http://dx.doi.org/10.1007/s10853-021-06171-y.

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14

Miao, Naihua, Jian Zhou, Baisheng Sa, Bin Xu, and Zhimei Sun. "Pressure-induced semimetal-semiconductor transition and enhancement of thermoelectric performance in α-MgAgSb." Applied Physics Letters 108, no. 21 (May 23, 2016): 213902. http://dx.doi.org/10.1063/1.4952598.

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15

Li, Xiyang, Zhigang Zhang, Lunhua He, Maxim Avdeev, Yang Ren, Huaizhou Zhao, and Fangwei Wang. "Grain size and structure distortion characterization of α-MgAgSb thermoelectric material by powder diffraction." Chinese Physics B 29, no. 10 (October 2020): 106101. http://dx.doi.org/10.1088/1674-1056/aba09c.

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16

Yang, Jia-Yue, Wenjie Zhang, and Ming Hu. "Decoupling thermal and electrical transport in α-MgAgSb with synergic pressure and doping strategy." Journal of Applied Physics 125, no. 20 (May 28, 2019): 205105. http://dx.doi.org/10.1063/1.5090456.

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17

Liu, Zihang, Yumei Wang, Weihong Gao, Jun Mao, Huiyuan Geng, Jing Shuai, Wei Cai, Jiehe Sui, and Zhifeng Ren. "The influence of doping sites on achieving higher thermoelectric performance for nanostructured α-MgAgSb." Nano Energy 31 (January 2017): 194–200. http://dx.doi.org/10.1016/j.nanoen.2016.11.010.

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18

Ying, Pingjun, Xin Li, Yancheng Wang, Jiong Yang, Chenguang Fu, Wenqing Zhang, Xinbing Zhao, and Tiejun Zhu. "Hierarchical Chemical Bonds Contributing to the Intrinsically Low Thermal Conductivity in α-MgAgSb Thermoelectric Materials." Advanced Functional Materials 27, no. 1 (October 28, 2016): 1604145. http://dx.doi.org/10.1002/adfm.201604145.

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19

Lei, Jingdan, De Zhang, Weibao Guan, Zheng Ma, Zhenxiang Cheng, Chao Wang, and Yuanxu Wang. "Enhancement of thermoelectric figure of merit by the insertion of multi-walled carbon nanotubes in α-MgAgSb." Applied Physics Letters 113, no. 8 (August 20, 2018): 083901. http://dx.doi.org/10.1063/1.5042265.

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20

Pang, Zhuoyi, Xiwen Zhang, and Chao Wang. "Investigation on native defects of α -MgAgSb and its effects on thermoelectric properties using first principles calculations." Current Applied Physics 17, no. 10 (October 2017): 1279–87. http://dx.doi.org/10.1016/j.cap.2017.06.010.

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21

Li, Dandan, Huaizhou Zhao, Shanming Li, Beipei Wei, Jing Shuai, Chenglong Shi, Xuekui Xi, et al. "Atomic Disorders Induced by Silver and Magnesium Ion Migrations Favor High Thermoelectric Performance in α-MgAgSb-Based Materials." Advanced Functional Materials 25, no. 41 (September 28, 2015): 6478–88. http://dx.doi.org/10.1002/adfm.201503022.

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22

Toh, Keita, Koichiro Suekuni, Katsuaki Hashikuni, Hirotaka Nishiate, Ushin Anazawa, Chul-Ho Lee, and Michitaka Ohtaki. "An effective synthesis route for high-performance α-MgAgSb thermoelectric material." Journal of Materials Science, May 26, 2022. http://dx.doi.org/10.1007/s10853-022-07306-5.

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23

Feng, Zhenzhen, Jihua Zhang, Yuli Yan, Guangbiao Zhang, Chao Wang, Chengxiao Peng, Fengzhu Ren, Yuanxu Wang, and Zhenxiang Cheng. "Ag-Mg antisite defect induced high thermoelectric performance of α-MgAgSb." Scientific Reports 7, no. 1 (May 31, 2017). http://dx.doi.org/10.1038/s41598-017-02808-8.

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24

Oueldna, Nouredine, Alain Portavoce, Maxime Bertoglio, Marion Descoins, Abdelkhalek Kammouni, and Khalid Hoummada. "Seebeck coefficient variations of α-MgAgSb in crystalline Mg-Ag-Sb thin films." Journal of Alloys and Compounds, October 2022, 167692. http://dx.doi.org/10.1016/j.jallcom.2022.167692.

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25

Li, Xiyang, Peng-Fei Liu, Enyue Zhao, Zhigang Zhang, Tatiana Guidi, Manh Duc Le, Maxim Avdeev, et al. "Ultralow thermal conductivity from transverse acoustic phonon suppression in distorted crystalline α-MgAgSb." Nature Communications 11, no. 1 (February 18, 2020). http://dx.doi.org/10.1038/s41467-020-14772-5.

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26

Liu, Zihang, Weihong Gao, Hironori Oshima, Kazuo Nagase, Chul-Ho Lee, and Takao Mori. "Maximizing the performance of n-type Mg3Bi2 based materials for room-temperature power generation and thermoelectric cooling." Nature Communications 13, no. 1 (March 2, 2022). http://dx.doi.org/10.1038/s41467-022-28798-4.

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AbstractAlthough the thermoelectric effect was discovered around 200 years ago, the main application in practice is thermoelectric cooling using the traditional Bi2Te3. The related studies of new and efficient room-temperature thermoelectric materials and modules have, however, not come to fruition yet. In this work, the electronic properties of n-type Mg3.2Bi1.5Sb0.5 material are maximized via delicate microstructural design with the aim of eliminating the thermal grain boundary resistance, eventually leading to a high zT above 1 over a broad temperature range from 323 K to 423 K. Importantly, we further demonstrated a great breakthrough in the non-Bi2Te3 thermoelectric module, coupled with the high-performance p-type α-MgAgSb, for room-temperature power generation and thermoelectric cooling. A high conversion efficiency of ~2.8% at the temperature difference of 95 K and a maximum temperature difference of 56.5 K are experimentally achieved. If the interfacial contact resistance is further reduced, our non-Bi2Te3 module may rival the long-standing champion commercial Bi2Te3 system. Overall, this work represents a substantial step towards the real thermoelectric application using non-Bi2Te3 materials and devices.
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