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Surface Photovoltage Study of Surface Defects on Co-Doped TiO2 Thin Films Deposited by Spray Pyrolysis
(University of Nairobi, 2016)
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 ...
Identification and Sorting of Materials With Portable Libs Before Decommissioning
(University of Nairobi, 2016)
Laser Induced Breakdown Spectroscopy (LIBS) is a technique of elemental analysis. A laser beam is
focused on the surface of the sample to be analyzed. A small quantity of matter is ablated and a plasma
formed by the ...
Optical properties of amorphous Se90-XIn10SbX thin film alloys
(University of Nairobi, 2016)
Ternary thin film alloys of Se90-XIn10SbX (x = 1, 4, 10, 15 and 20) were synthesised by flash evaporation of the pre-melt quenched bulk samples under a vacuum of 10−5 Torr. Optical absorption analysis pointed to indirect ...
Anilino-functionalized Graphene Oxide Intercalated With Pt Metal Nanoparticles for Application as Supercapacitor Electrode Material
(University of Nairobi, 2016)
Nanostructured anilino-functionalized reduced graphene oxide intercalated with Pt metal nanoparticles was successfully synthesized. Graphene oxide nanosheets were synthesized using a modified Hummers method with simultaneous ...