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Mechanical stresses upon crystallization in phase change materials 

Njoroge, W. K.; Kalb, J.; Wamwangi, D.; Wuttig, M.; Spaepen, F. (American Institute of Physics, 2001)
Crystallization processes in different Te alloys, employed in phase change materials for optical data storage, have been investigated by in situ mechanical stress measurements. Upon crystallization a considerable stress ...
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Optical and electrical characterization of ZnS:Sn thin films for solar cell application 

Wanjala, K. S.; Njoroge, W. K.; Ngaruiya, J. M. (2016)
Tin Doped Zinc Sulphide (ZnS:Sn) thin films are a special kind of material that exhibit electrical conductivity and at the same time, high transmittance in visible region making it suitable for Solar Cell applications. ...
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Towards virtual laboratories: a survey of labview-based Conduction of science experiments via the internet with an Illustrative consideration of remote control of an oscilloscope 

Agumba, O. John; Katana, G. Gabriel; Karimi, P. M. (Academic Journals, 2011-06)
In this work, a Remotely Accessible and Configurable Digital Cathode Ray Oscilloscope experiment system is designed in LabVIEW graphical development platform. The LabVIEW application is used to perform several tasks that ...
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Electron Impact Excitation of 2 1S State of Helium Atom 

Singh, C. S. (Faculty of Science Kenyatta University, 2005)
We have applied a distorted wave method to calculate the differential cross sections for 2 1S excitation of helium atom by electron impact in the energy range of 50-200 eV. The results are compared with some other ...
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Analysis of Internal Exposure Associated with Consumption of Crops and Groundwater from the High Background Radiation Area of Mrima Hill, Kenya 

Chege, M.; Hashim, N.; Merenga, A.; Tschiersch, J (Oxford University Press, 2014-09)
Specific concentrations of (226)Ra, (232)Th and (40)K were measured in cassava tubers, cassava leaves and groundwater obtained from the high background radiation area of Mrima hill and used in the evaluation of the ingested ...
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Modeling transfer of electrons between energy states of an electrolyte and CdS thin films using Gerischer Model 

Mosiori, Cliff Orori; Maera, John; Njoroge, Kamande W.; Shikambe, Reuben T.; Munji, M. K.; Magare, Robert (ABC Journals, 2015)
A number of models have been developed to describe electron transfer between electrolytes and group II–VI binary semiconductors. In this report, a study was conducted to describe and model electron transfer between ...
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Effect of dielectric constant on energy losses in lead sulphide thin films grown by solution method at room temperature 

Mosiori, Cliff Orori (International Journal of Physical Sciences, 2013-09)
Thin films of lead sulphide (PbS) were deposited using chemical bath deposition (CBD) at different lead ion concentrations. A mixture of sodium hydroxide, varied concentrations of lead nitrate, triethanolamine (TEA), ...
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In situ measurements of thickness changes and mechanical stress upon gasochromic switching of thin MoOx films 

Okumu, J.; Koerfer, F.; Salinga, C.; Wuttig, M. (American Institute of Physics (AIP), 2004)
Thin films of MoOx coated with platinum as a catalyst were prepared by dc magnetron sputtering from a molybdenum target in an oxygen and argon atmosphere. The films were colored and bleached by exposure to diluted hydrogen ...
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Relationship Between Band Gap and Particle Size of Cadmium Sulfide Quantum Dots 

Makori, N. E.; Oeba, Duke Ayetah; Mosiori, Cliff Orori (Chemistry Research Journal, 2017)
Nanoparticles at quantum dot level are considered to be larger than individual atoms and molecules but smaller than their bulk solid. In such a condition, they are believed to obey neither absolute quantum chemistry nor ...
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Analysis of Soil for Trace Elements along Two Highways of Kenya 

Hashim, N.O.; Kinyua, A. M.; Mangala, M. J.; Rathore, I. V. S. (Faculty of Science Kenyatta University, 1998)
Energy dispersive X-ray fluorescence technique has been used to study the levels of lead and other toxic trace elements in the soil samples collected along two major highways (Mombasa and Thika) of Kenya at the various ...
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AuthorMosiori, Cliff Orori (14)Njoroge, W. K. (14)Karimi, P. M. (11)Okumu, J. (9)Ambusso, W. (8)Rathore, I. V. S. (7)Wuttig, M. (7)Hashim, N. O. (5)Munji, M. K. (5)Singh, C. S. (5)... View MoreSubjectOptical properties (6)Annealing (3)Chemical bath deposition (3)Differential cross section (3)Electrical properties (3)Passivation (3)Spray Pyrolysis (3)Thermal evaporation (3)Anomalies, (2)Band gap (2)... View MoreDate Issued2020 - 2022 (10)2010 - 2019 (58)2000 - 2009 (22)1990 - 1999 (7)1980 - 1989 (1)1979 - 1979 (1)

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