https://doi.org/10.1140/epjb/s10051-025-00914-5
Regular Article - Solid State and Materials
Synthesis of NiO and Cu-NiO nanoparticles using Syzygium samarangense fruit extract and its evolution as inorganic hole transport layer in perovskite solar cells
1
Department of Physics, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu, India
2
Advanced Battery Research Centre, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu, India
3
Advanced Manufacturing Institute, King Saud University, P.O. Box 800, 11421, Riyadh, Saudi Arabia
4
Department of Mechanical Engineering, College of Engineering, King Saud University, P.O. Box 800, 11421, Riyadh, Saudi Arabia
Received:
5
February
2025
Accepted:
31
March
2025
Published online:
22
April
2025
The current work used a bio-mediated green synthesis from the fruit extract of Syzygium samarangense to prepare nanoparticles of nickel oxide (NiO) and copper-doped NiO (Cu-NiO). X-ray diffraction (XRD), ultraviolet–visible (UV–Vis) spectroscopy, Fourier transform-infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM) with EDAX, and TEM analysis were carried out for the structural and optical characteristics of NiO and Cu-NiO nanoparticles. UV–DRS spectroscopy reveals that the NiO has high absorption peak at 311 nm and Cu-NiO has its highest peak at 325 nm. The grain size of NiO and Cu-doped NiO nanoparticles were obtained as 18.23 nm and 21.32 nm with cubic structure with agglomeration and porosity. The inferences from the optical study revealed the suitability of the material as a hole transport layer in solar cells.
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
