Smart assembling of multi-scaled functional interfaces in thermoelectric Ga2Te3/Te hetero-nanocomposites

Hsiu-Cheng Chang; Ming-Hsiu Chiang; Tsung-Che Tsai; Tsung-Han Chen; Wha-Tzong Whang; Chun-Hua Chen

doi:10.1039/C4NR02765E

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Smart assembling of multi-scaled functional interfaces in thermoelectric Ga₂Te₃/Te hetero-nanocomposites†

Hsiu-Cheng Chang,^a Ming-Hsiu Chiang,^a Tsung-Che Tsai,^a Tsung-Han Chen,^a Wha-Tzong Whang^a and Chun-Hua Chen*^a

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* Corresponding authors

^a Department of Materials Science and Engineering, National Chiao Tung University, Hsin-Chu 30010, Taiwan, Republic of China
E-mail: ChunHuaChen@mail.nctu.edu.tw

Abstract

We describe an innovative concept and facile approach in fabricating laterally assembled Ga₂Te₃/Te binary nanocomposite films, which comprise two-dimensional quasi-periodic Ga₂Te₃ nanoassemblies surrounded by interlocking highly-conductive Te single crystals for comprehensively establishing subnano- to micro-scaled multi-style versatile interfaces. The distinct Ga₂Te₃/Te nanocomposite film exhibits a power factor that is about 60 times higher than the reported conventional Ga₂Te₃ and Te materials, mainly due to the 2- to 3-order improved electrical conductivity and the comparable Seebeck coefficient.

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Article information

DOI: https://doi.org/10.1039/C4NR02765E
Article type: Paper
Submitted: 20 May 2014
Accepted: 28 Sep 2014
First published: 29 Sep 2014

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Nanoscale, 2014,6, 14280-14288

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Smart assembling of multi-scaled functional interfaces in thermoelectric Ga₂Te₃/Te hetero-nanocomposites

H. Chang, M. Chiang, T. Tsai, T. Chen, W. Whang and C. Chen, Nanoscale, 2014, 6, 14280 DOI: 10.1039/C4NR02765E

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