Characteristics of lattice thermal conductivity and carrier mobility of undoped PbSe-PbS solid solutions
Characteristics of lattice thermal conductivity and carrier mobility of undoped PbSe-PbS solid solutions
复制标题
无掺杂PbSe-PbS固溶体的晶格热导率和载流子迁移率特性
DOI:
10.1088/0022-3727/46/40/405301
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发表时间:
2013-10
期刊:
影响因子:
--
通讯作者:
王建立
中科院分区:
文献类型:
--
作者:
王建立
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 PbSe1−xSx 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 PbSe0.7S0.3 when the carrier mobility remains virtually unchanged, indicating the beneficial effect of impurity scattering to improve the thermoelectric performance.
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DOI:
10.1073/pnas.1111419109
发表时间:
2012-06-19
影响因子:
11.1
作者:
Wang, Heng;Pei, Yanzhong;Snyder, G. Jeffrey
通讯作者:
Snyder, G. Jeffrey
影响因子:
64.8
作者:
Biswas, Kanishka;He, Jiaqing;Kanatzidis, Mercouri G.
通讯作者:
Kanatzidis, Mercouri G.
影响因子:
--
作者:
ABELES, B
通讯作者:
ABELES, B
影响因子:
56.9
作者:
Poudel, Bed;Hao, Qing;Ren, Zhifeng
通讯作者:
Ren, Zhifeng
影响因子:
27.8
作者:
Wang, Heng;Schechtel, Eugen;Snyder, G. Jeffrey
通讯作者:
Snyder, G. Jeffrey