Enhanced Thermoelectric Properties of a Semiconducting Two-Dimensional Metal-Organic Framework via Iodine Loading

Maria de Lourdes Gonzalez-Juarez; Mark A Isaacs; Darren Bradshaw; Iris Nandhakumar

doi:10.1021/acsami.2c20770

Enhanced Thermoelectric Properties of a Semiconducting Two-Dimensional Metal-Organic Framework via Iodine Loading

ACS Appl Mater Interfaces. 2023 Feb 1;15(4):5478-5486. doi: 10.1021/acsami.2c20770. Epub 2023 Jan 23.

Authors

Maria de Lourdes Gonzalez-Juarez¹, Mark A Isaacs^{2

3}, Darren Bradshaw¹, Iris Nandhakumar¹

Affiliations

¹ School of Chemistry, University of Southampton, SouthamptonSO17 1BJ, U.K.
² Department of Chemistry, University College London, LondonWC1H 0AJ, U.K.
³ HarwellXPS, Research Complex at Harwell, RAL, Harwell Campus, DidcotOX11 0FA, U.K.

Abstract

We report the first result of a study in which molecular iodine has been incorporated via incipient wetness impregnation into the two-dimensional semiconducting metal-organic framework (MOF) Cu₃(2,3,6,7,10,11-hexahydroxytriphenylene)₂ Cu₃(HHTP)₂ to enhance its thermoelectric properties. A power factor of 0.757 μW m^-1 K^-2 for this MOF was obtained which demonstrates that this provides an effective route for the preparation of moderate-performance thermoelectric MOFs.

Keywords: conducting; dip coating; iodine; metal−organic frameworks; thermoelectrics.