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Research Article | Open Access

Carrier and microstructure tuning for improving the thermoelectric properties of Ag8SnSe6 via introducing SnBr2

Zhonghai YUXiuxia WANGChengyan LIU( )Yiran CHENGZhongwei ZHANGRuifan SIXiaobo BAIXiaokai HUJie GAOYing PENGLei MIAO( )
Guangxi Key Laboratory of Information Materials, Electronical Information Materials and Devices Engineering Research Center of Ministry of Education, School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China

† Zhonghai Yu and Xiuxia Wang contributed equally to this work.

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Abstract

The argyrodite compounds ( A(12n)/mm+Bn+X62(Am+ = Li+, Cu+, and Ag+; Bn+ = Ga3+, Si4+, Ge4+, Sn4+, P5+, and As5+; and X2-= S2-, Se2-, or Te2-)) have attracted great attention as excellent thermoelectric (TE) materials due to their extremely low lattice thermal conductivity (κl). Among them, Ag8SnSe6-based TE materials have high potential for TE applications. However, the pristine Ag8SnSe6 materials have low carrier concentration (< 1017 cm-3), resulting in low power factors. In this study, a hydrothermal method was used to synthesize Ag8SnSe6 with high purity, and the introduction of SnBr2 into the pristine Ag8SnSe6 powders has been used to simultaneously increase the power factor and decrease the thermal conductivity (κ). On the one hand, a portion of the Br- ions acted as electrons to increase the carrier concentration, increasing the power factor to a value of ~698 μW·m-1·K-2 at 736 K. On the other hand, some of the dislocations and nanoprecipitates (SnBr2) were generated, resulting in a decrease of κl (~0.13 W·m-1·K-1) at 578 K. As a result, the zT value reaches ~1.42 at 735 K for the sample Ag8Sn1.03Se5.94Br0.06, nearly 30% enhancement in contrast with that of the pristine sample (~1.09). The strategy of synergistic manipulation of carrier concentration and microstructure by introducing halogen compounds could be applied to the argyrodite compounds to improve the TE properties.

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References

[1]
Chu S, Majumdar A. Opportunities and challenges for a sustainable energy future. Nature 2012, 488: 294-303.
[2]
Moshwan R, Yang L, Zou J, et al. Eco-friendly SnTe thermoelectric materials: Progress and future challenges. Adv Funct Mater 2017, 27: 1703278.
[3]
Shi X, Chen L, Uher C. Recent advances in high-performance bulk thermoelectric materials. Int Mater Rev 2016, 61: 379-415.
[4]
Shi XL, Ai X, Zhang QH, et al. Enhanced thermoelectric properties of hydrothermally synthesized n-type Se&Lu-codoped Bi2Te3. J Adv Ceram 2020, 9: 424-431.
[5]
Zhang X, Zhao LD. Thermoelectric materials: Energy conversion between heat and electricity. J Materiomics 2015, 1: 92-105.
[6]
Zhang Q, Liao BL, Lan YC, et al. High thermoelectric performance by resonant dopant indium in nanostructured SnTe. Proc Natl Acad Sci 2013, 110: 13261-13266.
[7]
Hochbaum AI, Chen RK, Delgado RD, et al. Enhanced thermoelectric performance of rough silicon nanowires. Nature 2008, 451: 163-167.
[8]
Shi XL, Tao XY, Zou J, et al. High-performance thermoelectric SnSe: Aqueous synthesis, innovations, and challenges. Adv Sci 2020, 7: 1902923.
[9]
Tan GJ, Zhao LD, Kanatzidis MG. Rationally designing high-performance bulk thermoelectric materials. Chem Rev 2016, 116: 12123-12149.
[10]
Zhang R, Pei J, Han ZJ, et al. Optimal performance of Cu1.8S1-xTex thermoelectric materials fabricated via high-pressure process at room temperature. J Adv Ceram 2020, 9: 535-543.
[11]
Zhang L, Liu YC, Tan TT, et al. Thermoelectric performance enhancement by manipulation of Sr/Ti doping in two sublayers of Ca3Co4O9. J Adv Ceram 2020, 9: 769-781.
[12]
Zheng YP, Zou MC, Zhang WY, et al. Electrical and thermal transport behaviours of high-entropy perovskite thermoelectric oxides. J Adv Ceram 2021, 10: 377-384.
[13]
Xu WJ, Zhang ZW, Liu CY, et al. Substantial thermoelectric enhancement achieved by manipulating the band structure and dislocations in Ag and La co-doped SnTe. J Adv Ceram 2021, 10: 860-870.
[14]
Pei YZ, LaLonde AD, Heinz NA, et al. Stabilizing the optimal carrier concentration for high thermoelectric efficiency. Adv Mater 2011, 23: 5674-5678.
[15]
Pei YZ, Wang H, Snyder GJ. Band engineering of thermoelectric materials. Adv Mater 2012, 24: 6125-6135.
[16]
Hu LP, Wu HJ, Zhu TJ, et al. Tuning multiscale microstructures to enhance thermoelectric performance of n-type bismuth-telluride-based solid solutions. Adv Energy Mater 2015, 5: 1500411.
[17]
Luo YB, Yang JY, Li G, et al. Enhancement of the thermoelectric performance of polycrystalline In4Se2.5 by copper intercalation and bromine substitution. Adv Energy Mater 2014, 4: 1300599.
[18]
Luo YB, Zheng Y, Luo ZZ, et al. n-type SnSe2 oriented-nanoplate-based pellets for high thermoelectric performance. Adv Energy Mater 2018, 8: 1702167.
[19]
Zhu TJ, Liu YT, Fu CG, et al. Compromise and synergy in high-efficiency thermoelectric materials. Adv Mater 2017, 29: 1605884.
[20]
Mehdizadeh Dehkordi A, Zebarjadi M, He J, et al. Thermoelectric power factor: Enhancement mechanisms and strategies for higher performance thermoelectric materials. Mater Sci Eng R Rep 2015, 97: 1-22.
[21]
Liu HL, Shi X, Xu FF, et al. Copper ion liquid-like thermoelectrics. Nat Mater 2012, 11: 422-425.
[22]
Kuhs WF, Nitsche R, Scheunemann K. The argyrodites— A new family of tetrahedrally close-packed structures. Mater Res Bull 1979, 14: 241-248.
[23]
Shen XC, Xia Y, Yang CC, et al. High thermoelectric performance in sulfide-type argyrodites compound Ag8Sn(S1-xSex)6 enabled by ultralow lattice thermal conductivity and extended cubic phase regime. Adv Funct Mater 2020, 30: 2000526.
[24]
Shen XC, Yang CC, Liu YM, et al. High-temperature structural and thermoelectric study of argyrodite Ag8GeSe6. ACS Appl Mater Interfaces 2019, 11: 2168-2176.
[25]
Li W, Lin SQ, Ge BH, et al. Low sound velocity contributing to the high thermoelectric performance of Ag8SnSe6. Adv Sci 2016, 3: 1600196.
[26]
Li L, Liu Y, Dai JY, et al. High thermoelectric performance of superionic argyrodite compound Ag8SnSe6. J Mater Chem C 2016, 4: 5806-5813.
[27]
Wang XX, Liu CY, Chen JL, et al. Synergistically optimizing the thermoelectric properties of polycrystalline Ag8SnSe6 by introducing additional Sn. CrystEngComm 2020, 22: 248-256.
[28]
Namiki H, Yahisa D, Kobayashi M, et al. Enhancement and manipulation of the thermoelectric properties of n-type argyrodite Ag8SnSe6 with ultralow thermal conductivity by controlling the carrier concentration through Ta doping. AIP Adv 2021, 11: 075125.
[29]
Yang C, Luo Y, Li X, et al. N-type thermoelectric Ag8SnSe6 with extremely low lattice thermal conductivity by replacing Ag with Cu. RSC Adv 2021, 11: 3732-3739.
[30]
Han G, Popuri SR, Greer HF, et al. Chlorine-enabled electron doping in solution-synthesized SnSe thermoelectric nanomaterials. Adv Energy Mater 2017, 7: 1602328.
[31]
Guin SN, Srihari V, Biswas K. Promising thermoelectric performance in n-type AgBiSe2: Effect of aliovalent anion doping. J Mater Chem A 2015, 3: 648-655.
[32]
Hyeon DS, Oh MS, Kim JT, et al. Electrical properties of bromine doped SnSe2 van der Waals material. J Phys D Appl Phys 2018, 51: 455102.
[33]
Wu SH, Liu CY, Wu ZS, et al. Realizing tremendous electrical transport properties of polycrystalline SnSe2 by Cl-doped and anisotropy. Ceram Int 2019, 45: 82-89.
[34]
Liu CY, Huang ZW, Wang DH, et al. Dynamic Ag+-intercalation with AgSnSe2 nano-precipitates in Cl-doped polycrystalline SnSe2 toward ultra-high thermoelectric performance. J Mater Chem A 2019, 7: 9761-9772.
[35]
Li S, Wang YM, Chen C, et al. Heavy doping by bromine to improve the thermoelectric properties of n-type polycrystalline SnSe. Adv Sci 2018, 5: 1800598.
[36]
Yang HQ, Wang XY, Wu H, et al. Sn vacancy engineering for enhancing the thermoelectric performance of two-dimensional SnS. J Mater Chem C 2019, 7: 3351-3359.
[37]
Zhang X, Zhang CL, Lin SQ, et al. Thermoelectric properties of n-type Nb-doped Ag8SnSe6. J Appl Phys 2016, 119: 135101.
[38]
Li Q, Ding Y, Liu XM, et al. Preparation of ternary I-IV-VI nanocrystallines via a mild solution route. Mater Res Bull 2001, 36: 2649-2656.
[39]
Shannon RD, Prewitt CT. Effective ionic radii in oxides and fluorides. Acta Cryst 1969, B25: 925-946.
[40]
Jin M, Lin SQ, Li W, et al. Fabrication and thermoelectric properties of single-crystal argyrodite Ag8SnSe6. Chem Mater 2019, 31: 2603-2610.
[41]
Hanus R, Agne MT, Rettie AJE, et al. Lattice softening significantly reduces thermal conductivity and leads to high thermoelectric efficiency. Adv Mater 2019, 31: 1900108.
[42]
Slade TJ, Anand S, Wood M, et al. Charge-carrier-mediated lattice softening contributes to high zT in thermoelectric semiconductors. Joule 2021, 5: 1168-1182.
[43]
Callaway J. Model for lattice thermal conductivity at low temperatures. Phys Rev 1959, 113: 1046-1051.
[44]
Yang C, Luo Y, Xia YF, et al. Synergistic optimization of the electronic and phonon transports of n-type argyrodite Ag8Sn1-xGaxSe6 (x = 0-0.6) through entropy engineering. ACS Appl Mater Interfaces 2021, 13: 56329-56336.
[45]
Pan L, Bérardan D, Dragoe N. High thermoelectric properties of n-type AgBiSe2. J Am Chem Soc 2013, 135: 4914-4917.
[46]
Li W, Lin SQ, Weiss M, et al. Crystal structure induced ultralow lattice thermal conductivity in thermoelectric Ag9AlSe6. Adv Energy Mater 2018, 8: 1800030.
[47]
Jiang BB, Qiu PF, Chen HY, et al. An argyrodite-type Ag9GaSe6 liquid-like material with ultralow thermal conductivity and high thermoelectric performance. Chem Commun 2017, 53: 11658-11661.
[48]
Lin S, Li W, Bu Z, et al. Thermoelectric properties of Ag9GaS6 with ultralow lattice thermal conductivity. Mater Today Phys 2018, 6: 60-67.
[49]
Jiang BB, Qiu PF, Eikeland E, et al. Cu8GeSe6-based thermoelectric materials with an argyrodite structure. J Mater Chem C 2017, 5: 943-952.
[50]
Zhang J, Huang LL, Zhu XG, et al. Realized high power factor and thermoelectric performance in Cu2SnSe3. Scripta Mater 2019, 159: 46-50.
[51]
Ming HW, Zhu C, Qin XY, et al. Improving the thermoelectric performance of Cu2SnSe3 via regulating micro- and electronic structures. Nanoscale 2021, 13: 4233-4240.
Journal of Advanced Ceramics
Pages 1144-1152
Cite this article:
YU Z, WANG X, LIU C, et al. Carrier and microstructure tuning for improving the thermoelectric properties of Ag8SnSe6 via introducing SnBr2. Journal of Advanced Ceramics, 2022, 11(7): 1144-1152. https://doi.org/10.1007/s40145-022-0601-7

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Received: 19 January 2022
Revised: 13 April 2022
Accepted: 15 April 2022
Published: 02 July 2022
© The Author(s) 2022.

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