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Role of bismuth and substrate temperature on the optical properties of some flash evaporated se<sub>100-x</sub> bi<sub>x</sub> glassy system

Mulama, Austine A.; Mwabora, Julius M.; Oduor, Andrew O.; Muiva, Cosmas M.; Muthoka, Boniface; Amukayia, Betty N.; Mbete, Drinold A (University of Nairobi, 2015)

Chalcogenide glasses are very important in the modern technology especially selenium-based. These glasses are sensitive to electromagnetic radiation useful in the infrared optics. The study investigated the effect of ...

Stability Investigation in the Optical Properties of Thermally Evaporated Ge5Se95-x Znx Thin Films

Mulamaa, Austine A; Mwabora, Julius M; Oduor, Andrew O; Muiva, Cosmas M; Muthoka, Boniface; Amukayia, Betty N; Mbete, Drinold A (University of Nairobi, 2015)

Selenium-based chalcogenides are useful in telecommunication devices like infrared optics and threshold switching devices. The investigated system of Ge5Se95-xZnx (0.0 ≤ x ≤ 4 at.%) has been prepared from high purity ...

Effect of Annealing and Surface Passivation on Doped SnO2 Thin FilmsPrepared by Spray Pyrolysis Technique

Muthoka, Boniface; Aduda, Bernard; Njoroge, Walter; Odari, Benjamin; Nyongesa, Francis; Munji, Mathew; Musembi, Robinson; Mwathe, Patrick M (2015)

In this study doped SnO2 thin films have been prepared by spray pyrolysis technique using an alcoholic precursor solution consisting of stannic chloride (SnCl4.5H2O), ammonium fluoride (NH4F) and palladium chloride (PdCl2). ...

Transport Mechanism in TiO2/In(OH)xSy/Pb(OH)xSy/PEDOT:PSS eta Solar Cell