A T-type method for characterization of the thermoelectric performance of an individual free-standing single crystal Bi2S3 nanowire

作者：Ma, Weigang; Miao, Tingting; Zhang, Xing^*; Takahashi, Koji; Ikuta, Tatsuya; Zhang, Boping; Ge, Zhenhua

来源：Nanoscale, 2016, 8(5): 2704-2710.

DOI：10.1039/c5nr05946a

• THERMAL-CONDUCTIVITY
• SILICON NANOWIRES
• ELECTRICAL-PROPERTIES
• TRANSPORT-PROPERTIES
• BISMUTH TRISULFIDE
• DEVICES
• POLYCRYSTALS
• ENERGY
• MERIT

A comprehensive method to evaluate the thermoelectric performance of one-dimensional nano-structures, called the T-type method, has been first developed. The thermoelectric properties, including the Seebeck coefficient, thermal conductivity and electrical conductivity, of an individual free-standing single crystal Bi2S3 nanowire have been first characterized by applying the T-type method. The determined figure of merit is far less than the reported values of nanostructured bulk Bi2S3 samples, and the mechanism is that the Seebeck coefficient is nearly zero in the temperature range of 300-420 K and changes its sign at 320 K.

• 出版日期2016
• 单位清华大学; 北京科技大学; 中国石油大学（北京）