Browsing Research Articles (Physics) by Author "Ngqoloda, Siphelo"
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Chemical Vapor Deposited Mixed Metal Halide Perovskite Thin Films
Magubane, Siphesihle; Arendse, Christopher; Ngqoloda, Siphelo (Materials, 2021)In this article, we used a two-step chemical vapor deposition (CVD) method to synthesize methylammonium lead-tin triiodide perovskite films, MAPb1−xSnxI3, with x varying from 0 to 1. We successfully controlled the concentration ... -
Controlled deposition of lead iodide and lead chloride thin films by low-pressure chemical vapor deposition
Ngqoloda, Siphelo; Arendse, Christopher J.; Muller, Theo F.G. (MDPI, 2020)Lead halide thin films, such as lead iodide (PbI2) and lead chloride (PbCl2), are used as precursor films for perovskite preparation, which is frequently achieved by vacuum thermal evaporation but rarely by the low-pressure ... -
Effects of alkali and transition metal-doped TiO2 hole blocking layers on the perovskite solar cells obtained by a two-step sequential deposition method in air and under vacuum
Ngqoloda, Siphelo; Nwankwo, U.; Nkele, Agnes Chinecherem (Royal Society of Chemistry, 2020)Planar perovskite solar cells (PPSCs) have received great attention in recent years due to their intriguing properties, which make them a good choice for photovoltaic applications. In this work, the effect of alkali and ... -
Influence of Synthesis Method on Structural, Morphological, Magnetic, and Antimicrobial Properties of Fe-Ag Nanoparticles
Noukelag, Sandrine Kamdoum; Ngqoloda, Siphelo; Arendse, Christopher J; Mewa-Ngongang, Maxwell (Journal of Inorganic and Organometallic Polymers and Materials, 2023)This contribution reports on the development of two versatile and efficient methods, namely the green and gamma radiolysis for Fe-Ag nanoparticles (NPs) synthesis, characterization, and further their growth inhibition ... -
Infuence of Synthesis Method on Structural, Morphological, Magnetic, and Antimicrobial Properties of Fe‑Ag Nanoparticles
Noukelag, Sandrine Kamdoum; Ngqoloda, Siphelo; Mewa‑Ngongang, Maxwell; Kotsedi, Lebogang; Razanamahandry, Lovasoa Christine; Ntwamp, Seteno; Arendse, Christopher; Maaza, Malik (Springer, 2023)This contribution reports on the development of two versatile and efcient methods, namely the green and gamma radiolysis for Fe-Ag nanoparticles (NPs) synthesis, characterization, and further their growth inhibition potential ... -
Spin coating immobilisation of C-N-TiO2 Co-Doped nano catalyst on glass and application for photocatalysis or as electron transporting layer for perovskite solar cells
Mouele, Emile Salomon Massima; Ngqoloda, Siphelo; Pescetelli, Sara (MDPI, 2020)Producingactivethinfilmscoatedonsupportsresolvesmanyissuesofpowder-basedphoto catalysis and energy harvesting. In this study, thin films of C-N-TiO2 were prepared by dynamic spin coating of C-N-TiO2 sol-gel on glass support. ...