Reza Akbar Pahlevi, Markus Diantoro, Muhammad Syolahudin Abdurrhaman, Alma Nur Roisatul Masruhah, Thathit Suprayogi, Chusnana Insjaf Yogihati
Thermoelectric is renewable energy that uses the principle of temperature difference which is converted into electrical energy. However, because the seebeck coefficient of CuS material is relatively low, it is necessary to add Ni doping so that the Seebeck coefficient becomes large. Cu1-xNixS material was synthesized using the polyol method and made into a thin film. The polyol method was selected so that the Cu1-xNixS material is not oxidized. The Cu1-xNixS material (x = 0; 0.02; 0.04; 0.06; 0.08) was characterized by XRD test, SEM-EDX, I−V 4-point probe, and thermoelectric performance. XRD analysis inform that crystal sizes ranging from 19.98-22.69 nm, and the crystallinity of 34.36−37.77%. It is also shown that SEM image analysis give rise the grain had mostly in spherical and oval shapes with no agglomeration. The Seebeck coefficient is increase with the increase of Ni doping in the Cu1-xNixS, which is 2.62−7.3×10-4 V/K. Furthermore, it was found that electrical conductivity increases with an increase of Ni. The electrical conductivity reaches 1.05-4.98×104 Ω-1 cm-1 © 2025 American Institute of Physics Inc.. All rights reserved.
Department of Physics, Faculty of Mathematics, Universitas Negeri Malang, Jl. Semarang 5, Malang, Indonesia; Centre of Advanced Materials for Renewable Energy, Universitas Negeri Malang, Jl. Semarang 5, Malang, Indonesia; Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Palangka Raya, Palangka Raya, Indonesia
