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Role of oxygen concentrations on structural and optical properties of RF magnetron sputtered ZnO thin films
(Springer US, 2019)
We report an investigation on the efect of oxygen fow rate on the structural and optical
properties of zinc oxide thin flms prepared by RF magnetron sputtering. The structural
measurements were carried using grazing ...
Demystifying the Menstruation Process among the Kenyan Girl-Child “A Period of Shame”: A SocioCultural Perspective
(International Journal of Science and Research (IJSR), 2014)
This paper provides a critical review of the challenges faced by the girl child during menstruation period. It provides an
analysis of various literatures based on these challenges and thus focuses on the Kenyan girl ...
Supporting Information for: Rheological Properties of Blends of Isotactic Polystyrene–
(2013)
Figure S1: Optical micrographs and atomic force microscopy (AFM) images for the 95% iPpMS–5% iPS binary system dewetted at 𝑇dew= 240℃ and at different incubation times.(a) shows a 200 nm film before the dewetting ...
Perceived Impact of the Youth Enterprise Development Fund on the Youth Towards the Establishment of Small Scale Rural Enterprises in Turbo Division, Uasin-gishu County, Kenya
(Universitas Sulawesi Barat, 2017)
The inception of the Youth Enterprise Development Fund has seen the rise of youth groups in rural
areas. This paper is thus aimed at understanding the impact of the fund towards the youth establishment
of small scale ...
Numerical Solution of Non-Linear Boundary Value Problems of Ordinary Differential Equations Using the Shooting Technique
(2017)
Ordinary Di erential Equations (ODEs) of the Initial Value Problem
(IVP) or Boundary Value Problem (BVP) type can model phenomena
in wide range of elds including science, engineering, economics, social
science, biology, ...
Optical properties and Raman studies of amorphous se-bi thin films
(The African Review of Physics, 2014)
Flash evaporated amorphous Se Bi (x = 0, 1, 2, 3, and 4 at. %) thin films of 350 ± 10 thickness have been investigated in the wavelength range of 200nm − 3000nm. It is found that the effect of increasing bismuth content ...
Energy Source and Technology Options for Kenya: Towards Direct Conversion of Solar Energy to Mechanical Work
(2017)
Sunlight though not heat, has inherent potential for direct conversion to mechanical work, just as heat does. The Physics pitching the possibility of direct conversion of nearly the entire sunlight received by a system ...
The Test of Entanglement of Polarization States of a Semi-Classical Optical Parametric Oscillator
(Science Publishing Group, 2017)
We study the dynamical continuous variable entanglement in a semi-classical Optical parametric oscillator (OPO).
The general time evolving photon polarization state vectors arising from exact analytical solutions of ...
A study of the Equatorial Ionosphere over Nairobi During selected magnetically disturbed and quiet times for the year 2009 Using co-located instruments
(IJARPS, 2014)
Investigation of the behavior of the Equatorial Ionosphere over Nairobi-Kenya within the East Africa region is done using co-located instruments, that is, SCINDA-GPS system and a Magnetometer ( MAGDAS). This was done for ...
[HTML] from rsc.org Effect of thermal treatment on ZnO: Tb 3+ nano-crystalline thin films and application for spectral conversion in inverted organic solar cells
(Royal Society of Chemistry, 2018)
Down conversion has been applied to minimize thermalization losses in photovoltaic devices. In this study,
terbium-doped ZnO (ZnO:Tb3+) thin films were deposited on ITO-coated glass, quartz and silicon
substrates using ...