Browsing by Author "Wafula, Henry"
Now showing items 1-5 of 5
-
Investigation of electronic and optical properties in bismuth/antimony co-doped methylammonium lead bromide
(AIP Advances, 2026-06-09)Lead halide perovskites, exemplified by methylammonium lead bromide (MAPbBr3), represent a cornerstone in the pursuit of next-generation photovoltaic materials owing to their tunable optoelectronic properties, defect ... -
Meyer-Neldel rule for Cu (I) diffusion in In2S3 layers
(Journal of Applied Physics, 2014-02-03)The nature of barriers for atomic transport in In2S3 layers has been varied by addition of chlorine. Diffusion of Cu(I) from a removable CuSCN source was used to probe the variation of the barriers. The Meyer-Neldel ... -
Role of Cl on Diffusion of Cu in In2S3 Layers Prepared by Ion Layer Gas Reaction Method
(coatings, 2015-02-15)Ion layer gas reaction (ILGAR) method allows for deposition of Cl-containing and Cl-free In2S3 layers from InCl3 and In(OCCH3CHOCCH3)3 precursor salts, respectively. A comparative study was performed to investigate the ... -
A Surface Photovoltage Study of Surface Defects on Co-Doped TiO2 Thin Films Deposited by Spray Pyrolysis
(MDPI, 2016-07-22)Surface photovoltage (SPV) spectroscopy is a powerful tool for studying electronic defects on semiconductor surfaces, at interfaces, and in bulk for a wide range of materials. Undoped and Cobalt-doped TiO2 (CTO) thin films ...
