Synthesis of Cu1-xSbxS-CuSO4 using The Co-precipitation Method : Structure and Thermoelectric Performance
Risky Virga Pramudya (a), Markus Diantoro (a,b*), Herlin Pujiarti (a,b), Reza Akbar Pahlevi (a), Alma Nur Roisatul Masruhah (a), Agung Saputro (a), Moh. Hafidhuddin Karim (a), Goh Boon Tong (c)

a) Department of Physics, Faculty of Mathematics, Universitas Negeri Malang, Jl. Semarang 5, Malang 65145, Indonesia
b) Centre of Advamced Materials and Renewable Energy, Universitas Negeri Malang, Jl. Semarang 5, Malang 65145, Indonesia
*markus.diantoro.fmipa[at]um.ac.id
c) Low Dimensional Materials Research Centre, Department of Physics, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia

Abstract

Thermoelectric technology can directly convert heat energy into electrical energy. This technology utilizes materials that can capture thermal energy and transform it into electrical energy. In this study, CuS-CuSO4 material will be synthesized and doped with Sb. Copper (Cu) is a fourth-period transition element that typically has high electrical conductivity. Antimony (Sb) was chosen due to its high melting point and electrical conductivity, which are expected to contribute to a high figure of merit (ZT). Additionally, CuS-CuSO4 is considered a new thermoelectric material due to its multi-element composition, low cost, easy availability, and environmental friendliness, making it a promising eco-friendly thermoelectric material with significant development potential CuS-CuSO4 material with Sb doping is synthesized using the coprecipitation method. Once the CuS-CuSO4 powder with Sb doping is obtained, it is formed into pellets using the cold press method and characterized using XRD, SEM-EDX, and LZT.

Keywords: Thermoelectric, CuS, CuSO4, Sb, Structure

Topic: Renewable energy