Ahmad Afandi Ismail, Nadiya Miftachul Chusna, Ahmad Taufiq, Sunaryono Sunaryono
The Mn0.25Fe2.75O4/ZnO/PVP/PANI has been successfully synthesized using the sol-gel and spin-coating methods to investigate the effect of ZnO concentration on the optoelectronic performance. The XRD characterization results showed diffraction patterns indicating the cubic spinel structure of Fe₃O₄ and the hexagonal structure of ZnO. SEM characterization reveals a solid surface morphology with particle sizes ranging from 40 to 90 nm. Results of UV–Vis analysis showed that the composite’s band gap energy ranged from 3.57 to 3.64 eV, indicating its ability to absorb UV light. Photoresponse measurements showed that the MZPP 0.5 sample exhibited the highest photoresponse among the investigated compositions, with a ΔV value of 0.2139 nV, a sensitivity of 73.16, and relatively fast rise and fall times of 1.25 and 2.8 seconds, respectively. These results demonstrate the potential of the Mn0.25Fe2.75O4/ZnO/PVP/PANI composite thin films as active materials for future UV photodetector development. © 2026 Informa UK Limited, trading as Taylor & Francis Group.
Department of Physics, Faculty of Mathematics and Natural Science, Universitas Negeri Malang, Malang, Indonesia; Department of Material Sciences Engineering, Graduate School of Engineering, Mie University, Mie, Japan; PUI-Centre of Advanced Materials for Renewable Energy (CAMRY), Universitas Negeri Malang, Malang, Indonesia
