High-temperature thermoelectric properties and thermal stability in air of copper zinc tin sulfide for the p-type leg of thermoelectric devices
High-temperature thermoelectric properties and thermal stability in air of copper zinc tin sulfide for the p-type leg of thermoelectric devices
复制标题
DOI：
10.7567/jjap.54.061801
复制
发表时间：
2015-05
影响因子：
1.5
通讯作者：
A. Kosuga;M. Matsuzawa;Akito Horie;T. Omoto;R. Funahashi
中科院分区：
文献类型：
--
作者：
A. Kosuga;M. Matsuzawa;Akito Horie;T. Omoto;R. Funahashi
研究了铜锌锡硫化物（Cu 2 ZnSnS 4）在300-720 K温度范围内的热电性能及其在空气中的稳定性。Cu 2 ZnSnS 4在空气中化学稳定，在720 K时表现出最大热电无量纲优值为0.1，使其成为在空气中工作的热电器件的p型腿的有希望的候选者。然而，空气退火的Cu 2 ZnSnS 4与Pt膏诱导宏观偏析的ZnS富相，这增加了其电阻率。因为Pt被认为是合适的结材料，所以需要在Cu 2 ZnSnS 4和Pt膏之间的阻挡材料来实现可靠的热电器件。
The thermoelectric properties and stability of copper zinc tin sulfide (Cu2ZnSnS4) in air at 300–720 K were evaluated. Cu2ZnSnS4 was chemically stable in air and exhibited a maximum thermoelectric dimensionless figure of merit of 0.1 at 720 K, making it a promising candidate for the p-type leg of thermoelectric devices that operate in air. However, air annealing of Cu2ZnSnS4 with Pt paste induced macroscopic segregation of a ZnS-rich phase, which increased its electrical resistivity. Because Pt is considered a suitable junction material, a barrier material between Cu2ZnSnS4 and Pt paste is needed to realize reliable thermoelectric devices.