A Soluble ‘Ba(Ni-ett)’ (ett = 1,1,2,2-Ethenetetrathiolate) Derived Thermoelectric Material

Hu, Yaoyang; Rivers, Geoffrey; Weir, Michael P.; Amabilino, David B.; Tuck, Christopher J.; Wildman, Ricky D.; Makarovsky, Oleg; Woodward, Simon

Abstract

We describe the synthesis and characterisation of the first of a new class of soluble ladder oligomeric thermoelectric material based on previously unutilised ethene-1,1,2,2-tetrasulfonic acid. Reaction of Ba(OH)2 and propionic acid at a 1:1 stoichiometry leads to the formation of the previously unrecognised soluble [Ba(OH)(O2CEt)]⋅H2O. The latter when used to hydrolyse 1,3,4,6-tetrathiapentalene-2,5-dione (TPD), in the presence of NiCl2, forms a new material whose elemental composition is in accord with the formula [(EtCO2Ba)4Ni8{(O3S)2C = C(SO3)2}5]⋅22H2O (4). Compound 4 can be pressed into pellets, drop-cast as DMSO solutions or ink-jet printed (down to sub-mm resolutions). While its room temperature thermoelectric properties are modest (σmax 0.04 S cm−1 and Seebeck coefficient, αmax − 25.8 μV K−1) we introduce a versatile new oligomeric material that opens new possible synthetic routes for n-type thermoelectrics.

Citation

Hu, Y., Rivers, G., Weir, M. P., Amabilino, D. B., Tuck, C. J., Wildman, R. D., Makarovsky, O., & Woodward, S. (2023). A Soluble ‘Ba(Ni-ett)’ (ett = 1,1,2,2-Ethenetetrathiolate) Derived Thermoelectric Material. Electronic Materials Letters, https://doi.org/10.1007/s13391-023-00454-z

• Journal Article Type: Article
• Acceptance Date: Aug 9, 2023
• Online Publication Date: Sep 1, 2023
• Publication Date: Sep 1, 2023
• Deposit Date: Sep 8, 2023
• Publicly Available Date: Sep 12, 2023
• Journal: Electronic Materials Letters
• Electronic ISSN: 2093-6788
• Publisher: Springer Verlag
• Peer Reviewed: Peer Reviewed
• DOI: https://doi.org/10.1007/s13391-023-00454-z
• Keywords: Organic thermoelectric; Oligomer; n-Type; Nickel; Barium; Thiolate
• Public URL: https://nottingham-repository.worktribe.com/output/24870426
• Additional Information: Received: 31 May 2023; Accepted: 9 August 2023; First Online: 1 September 2023; : ; : The authors have no competing interests to declare.