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High-performance p-type inorganic-organic hybrid thermoelectric thin films


The performance of organic-inorganic hybrid thermoelectric thin films can be dramatic enhanced by optimizing energy filtering and carriers transport states at the organic-inorganic interfaces. In this work, p-type “Sb2Te3/CH3NH3I/Sb2Te3” multilayer thin films were firstly fabricated with varied contents of CH3NH3I, then the annealing process was used in order to form the homogeneous organic-inorganic hybrid thin films. Results revealed that the introduced organic component can promote thin film growth and develop a dense nanostructure with an improved crystallinity, thus resulting in a significantly increased Seebeck coefficient and a reduced thermal conductivity as a result of the optimized electronic transport characteristics and enhanced effects of phonon scattering. As is expected, the thermoelectric performance of the hybrid-nanocomposite films is enhanced, achieving the maximum ZT value of 1.55 at a temperature of 413 K, which is several times higher than that of the as-fabricated film, thereby suggesting that the proposed strategy can be applied to prepare efficient preparation method of high-performance thermoelectric thin films.

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Publication details

The article was received on 12 Mar 2018, accepted on 14 Jun 2018 and first published on 14 Jun 2018

Article type: Paper
DOI: 10.1039/C8NR02065E
Citation: Nanoscale, 2018, Accepted Manuscript
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    High-performance p-type inorganic-organic hybrid thermoelectric thin films

    Z. Zheng, P. Fan, J. Luo, G. Liang, H. Ma, X. Zhang, C. Yang and Y. Q. Fu, Nanoscale, 2018, Accepted Manuscript , DOI: 10.1039/C8NR02065E

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