Characteristics of lattice thermal conductivity and carrier mobility of undoped PbSe-PbS solid solutions

Wang J.L.; Wang H.; Snyder G.J.; Zhang X.; Ni Z.H.; Chen Y.F.

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Characteristics of lattice thermal conductivity and carrier mobility of undoped PbSe-PbS solid solutions

机译：非掺杂PbSe-PbS固溶体的晶格导热系数和载流子迁移率

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Solid solution has been considered as an effective approach to advanced thermoelectrics. However, the benefit from the decrease in lattice thermal conductivity induced by the impurity scattering will be compensated by the reduction in carrier mobility, therefore suppressing the maximum figure of merit (zT). We demonstrate the characteristics of the fundamental properties, including the lattice thermal conductivity and carrier mobility, of undoped PbSe_(1-x)S_x solid solutions (0 < x < 1) at room temperature, which provide an efficient way to evaluate the maximum zT of the materials with optimum doping. The lattice thermal conductivity is found to decrease significantly after adding a small amount of PbSe into PbS matrix up to the composition of PbSe_(0.7)S_(0.3) when the carrier mobility remains virtually unchanged, indicating the beneficial effect of impurity scattering to improve the thermoelectric performance.

机译：固溶体被认为是先进热电学的有效方法。但是，由杂质散射引起的晶格热导率降低的好处将被载流子迁移率的降低所补偿，因此抑制了最大品质因数（zT）。我们证明了室温下未掺杂的PbSe_（1-x）S_x固溶体（0

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《Journal of Physics, D. Applied Physics: A Europhysics Journal》 |2013年第40期|共5页
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Wang J.L.; Wang H.; Snyder G.J.; Zhang X.; Ni Z.H.; Chen Y.F.;
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正文语种 eng
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Characteristics; lattice thermal; solutions;

机译：特性;晶格热;解决方案;

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1. Characteristics of lattice thermal conductivity and carrier mobility of undoped PbSe-PbS solid solutions [J] . Wang J.L., Wang H., Snyder G.J., Journal of Physics, D. Applied Physics: A Europhysics Journal . 2013,第40期

机译：非掺杂PbSe-PbS固溶体的晶格导热系数和载流子迁移率
2. Two-Dimensional Square-A(2)B (A = Cu, Ag, Au, and B = S, Se): Auxetic Semiconductors with High Carrier Mobilities and Unusually Low Lattice Thermal Conductivities [J] . Chen Xin, Wang Duo, Liu Xiaobiao, Journal of physical chemistry letters . 2020,第8期

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3. Achieving High Thermoelectric Performance in Rare-Earth Element-Free CaMg2Bi2 with High Carrier Mobility and Ultralow Lattice Thermal Conductivity [J] . Muchun Guo, Fengkai Guo, Jianbo Zhu, 研究（英文） . 2020,第004期

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5. Effect of solid solutions and second phases on the thermal conductivity of zirconium diboride ceramics. [D] . Harrington, Gregory John Kenneth. 2014

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6. Achieving High Thermoelectric Performance in Rare-Earth Element-Free CaMg2Bi2 with High Carrier Mobility and Ultralow Lattice Thermal Conductivity [O] . Muchun Guo, Fengkai Guo, Jianbo Zhu, 2020

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Characteristics of lattice thermal conductivity and carrier mobility of undoped PbSe-PbS solid solutions

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