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Electrochemical Deposition and Thermoelectric Characterisation of a Semiconducting 2-D Metal-Organic Framework Thin Film

preprint
submitted on 13.05.2020 and posted on 14.05.2020 by Maria de Lourdes Gonzalez-Juarez, Eduado Flores, Marisol Martin-Gonzalez, Iris Nandhakumar, Darren Bradshaw
The electrical conductivity and porosity of the 2-dimensional metal-organic framework Cu3(2,3,6,7,10,11-hexahydroxytriphenylene)2 [Cu3(HHTP)2] make it a promising candidate for thermoelectric applications. In this work, we report the electrochemical synthesis of Cu3(HHTP)2 films by an anodization approach and an evaluation of its thermoelectric properties. The electrochemically synthesised Cu3(HHTP)2 thin films were transferred using a wet chemical method in order to perform electrical measurements. We are reporting the first thermoelectric measurements of this framework both in bulk and thin film form which resulted in Seebeck coefficients of -7.24 µV/K and -121.4 µV/K with a power factor of 3.15x10-3 µW m-1 for the film respectively. The negative Seebeck coefficients suggest that Cu3(HHTP)2 behaves as an n-type semiconductor.

Funding

CONACYT: 526108

History

Email Address of Submitting Author

d.bradshaw@soton.ac.uk

Institution

University of Southampton

Country

U.K.

ORCID For Submitting Author

0000-0001-5258-6224

Declaration of Conflict of Interest

None

Version Notes

Version 1.0

Exports