论文标题
一维泰瑞尔德式TA4SITE4和NB4SITE4的固体溶液中的晶格晶体中的大型热电学因子4
Large Thermoelectric Power Factor in Whisker Crystals of Solid Solutions of the One-Dimensional Tellurides Ta4SiTe4 and Nb4SiTe4
论文作者
论文摘要
发现一维的Tellurides TA4Site4和NB4Site4在室温下显示出高热电性能。这项研究报道了TA4Site4-NB4Site4固溶液和掺杂的TA4SITE4-NB4SITE 4固体晶体的合成和热电特性（TA0.5NB0.5）4site4。固体溶液的热电功率随着TA含量的增加而系统地增加，而其电阻率意外小。 Mo-和Ti掺杂（TA0.5NB0.5）4site4分别显示出n-和p型热电特性，其较大功率因子分别超过40 microw cm-1 k-k-2。不仅TA4SITE4和NB4SITE4以及它们的固定溶液显示出高性能的事实表明，该系统是低温下热电应用的有希望的候选者。
One-dimensional tellurides Ta4SiTe4 and Nb4SiTe4 were found to show high thermoelectric performance below room temperature. This study reported the synthesis and thermoelectric properties of whisker crystals of Ta4SiTe4-Nb4SiTe4 solid solutions and Mo- or Ti-doped (Ta0.5Nb0.5)4SiTe4. Thermoelectric power of the solid solutions systematically increased with increasing Ta content, while their electrical resistivity was unexpectedly small. Mo- and Ti-doped (Ta0.5Nb0.5)4SiTe4 showed n- and p-type thermoelectric properties with large power factors exceeding 40 microW cm-1 K-2, respectively. The fact that not only Ta4SiTe4 and Nb4SiTe4 but also their solid solutions showed high performance indicated that this system is a promising candidate for thermoelectric applications at low temperatures.
