Central University of Technology

Tailoring structural and optical properties of CdSe thin films deposited with nominal Tb³⁺ precursor concentrations (0–10 mol%) via chemical bath deposition

Cadmium selenide (CdSe) thin films were deposited on glass substrates by chemical bath deposition using nominal Tb³ ⁺ precursor concentrations of 0 –10 mol% at 80 °C. The influence of increasing Tb precursor concentration on the structural, morphological, and optical properties o...

High-Efficient Cs2AgBiBr6 Perovskite Solar Cells with Rare-Earth-Doped Absorber and Front Contact: A Numerical Modeling in SCAPS-1D Framework

This work proposes a simplified HTL-free PSC structure based on Cs2AgBiBr6 doped with praseodymium (Pr3+). By reducing interfacial layers, this design reduces defect-induced recombination and increases the resistance of the device under environmental stresses (such as temperature...

First report of cladode spot caused by Alternaria alternata on Opuntia robusta in South Africa

Opuntia robusta is a cactus species cultivated for both fodder and fruit production. In November 2024, cladode spot symptoms were observed on approximately 60% of O. robusta plants cultivated at an experimental farm in Bloemfontein (29.1035° E, 26.1740° S), South Africa. Symptoms...