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Now showing items 41-50 of 94
Enhancing light absorption and lifetime stability of organic solar cells using pentacene encapsulation
(SA Institute of Physics, 2015)
. In the present work we compare the performance of a pristine P3HT:PCBM
based bulk heterojunction solar cell with a device incorporated with pentacene encapsulated
Ag nanoparticles. Encapsulation has been achieved through ...
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 ...
Compositional and Thickness Effects on the Optical Properties of Zinc–Doped Selenium–Antimony Thin Films
(Tanzania Journal of Science, 2018)
Chalcogenide system of antimony (Sb)-selenium (Se)-zinc (Zn) system is a promising semiconductor for phase change memory devices due to its thermal stability and low power consumption. The study investigated the effect of ...
AN INVESTIGATION OF THE EFFECTS OF BOUNDARY LAYER THICKNESS ON A THIN FILM OF LIQUID FLOW DOWN AN INCLINED PLANE
(2012-12-30)
The motion of fluid substances may be described by the Navier-Stokes (N-S)
equations. The equations arise from the application of Newton’s second Law of
motion to a fluid. In this paper, N-S equations in two dimensions ...
The Question of Elitism, Medium and Audience in African Literature: Examples from Kiswahili Short Story
(Academia.edu, 2014)
Since the Makerere Conference of 1962, the question of what is ‘African Literature’ has
remained unresolved. To a large extent a great number of scholars led by Ngugi reduced the
whole question to that of language. This ...
On the steady MHD couette flow between two infinite parallel plates in an uniform transverse magnetic field
(2015)
In this paper we consider laminar viscous incompressible fluid between two
infinite parallel plates when the upper plate is moving with constant velocity Uo
and the lower plate is held stationary under the influence of ...
Progressively accurate WKB approximations through factorization and successive boost transformations
(Research gate, 2015)
This paper develops a procedure for obtaining progressively improving approximate solutions
of the WKB (semiclassical ) model of the stationary Schroedinger equation through factorization and successive boost transformations ...
A study of the Equatorial Ionosphere over Nairobi During selected magnetically disturbed and quiet times for the year 2009 Using co-located instruments
(ARC, 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 ...
Quadrature fluctuation energy, effective Hamiltonians, quasi-particle modes and quantum phase transitions in the Rabi and Dicke models
(Research gate, 2017)
The main purpose of this article is to provide a simple physically motivated exact analytical procedure
for determining effective Rabi and Dicke Hamiltonians, which have so far posed serious challenges in
studies of ...
Composite Hermite and Anti-Hermite Polynomials
(Scientific Research Publishing, 2015)
The Weber-Hermite differential equation, obtained as the dimensionless form of the stationary
Schroedinger equation for a linear harmonic oscillator in quantum mechanics, has been expressed
in a generalized form through ...