Faculty of Science & Technology (FST): Recent submissions
Now showing items 141-160 of 853
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Ab-initio Studies of point defects in TiO2: A density functional approach
(University of Nairobi, 29-11-13) -
Optoelectronic Properties of Palladium Doped Tin (IV) Oxide (Pd: Sn02) Tlfin Films Deposited by Spray Pyrolysis
(University of Nairobi, 29-11-13) -
Characterization of Indium doped Tin Selenide (In iSn.Sey) Thin Films for Phase Change Memory Application
(University of Nairobi, 2013) -
Application Of Satellite Remote Sensing Techniques In Land Use And Land Cover Pattern Analysis Of The Nakuru-Nyahururu Area
(University of Nairobi, 1993-08)SPOT and LANDSAT-5 TM space images have been utilised to analyse land use cover characteristics and patterns in a section of the Aberdare Detachment system sub-basin, the Nakuru-Nyahururu area, Kenya. Good ground resolution ... -
Nanoporous Ceramics for Water Filtra tion
(28-04-14)Over four billion cases of diarrhea that occur worldwide each year result ill about 18 million deaths. In the developing countries (in Africa) over 35% of the population suffers from diseases related to unsafe water ... -
Preparation and Characterization of Transparent and Conducting Doped Tin Oxide
(University of Nairobi, 2008) -
Structural and Electronic Properties of Ti Oj Nb:Ti02 and Cr:Ti02:A First Principles Study
(University of Nairobi, 2012)Substitutional Nb donor and Cr acceptor states in Anatase and Rutile Ti02 have been studied using generalized gradient approximation (PBE-GGA) employing pseudopotentials and plane wave basis sets in bulk. The calculations ... -
Evaluation of lCT Skills Appropriateness: A Survey of Technical Staff at the Directorate of e-Government in Kenya
(University of Nairobi, 2010) -
Deposition and Characterization of CuAlxBx Se2 Thin Film Deposited by DC-RF Co-sputtering for PhotovoItaic Application
(2012)Solar cell has the potential of being the m am drive to economic prosperity as it is one of the mo-t promising sources of cheap, environmentally friendly and renewable energy. Crystalline silicon based technology currently ... -
Optical and Electrical Characterization of Cd:JxNi_:xS and Sb2S3 Thin FiIm s for Photov0Itaic Application s
(2012)The limited supply of fossil fuels has motivated the search for alternative sources of energy. Much Interest now focuses 011 the vast amount of radiation from the sun and thus devices that COnveJ1 light energy into ... -
Efficiency Enhancement in P3HT:PCB Blends using Squarylium III Dye"
(2012)Nano-size thin films comprising poly (3-hexylthiophene) (P3HTi and 3 fullerene derivative [6, 6] PhenylC,-butyric acid methyl ester (PCBl"l) incorporating squaryliurn dyes III (sq3) are reported. The materials prepared ... -
High Level Physics and Appropriate Solutions to Real Life Problems in Developing Countries
(2013-11)This paper presents the state of physics education and research at the University of Nairobi. The Department is the largest in Kenya with 32 academic staff and 15 technical staff. We offer three undergraduate programs: ... -
Optical Characterization of Compounds for Dye-Sensitized Solar Cell Applications
(28-04-14)The d\ e·~cn~ltized solar cell can provide an economically credible alternative in miugaring the challenges presented by the current convectional photovoltaic devices. Whereas the se m iconductor assume both the task of ... -
Effects of Target Composition on the Optical Constants of uC Sputtered ZnO:AI Thin Films
(2012)AI-doped lJlO thin films were deposited from lnO:AI ceramic and Zn.Al meial alloy targets, Deposition took place in Ar and Ar + O2 atmosphere for lnOAI and ZnAl targets: respectively, using DC magnetron sputtering. ... -
Optimization of Sn.Se, Deposited by Reactive Thermal Evaporation for Solar cell Application
(University of Nairobi, 2012) -
Knowledge Transfer in the Digital age: Possibilities and challenges
(University of Nairobi, 2013) -
Ch a r a c terization of SnxSeylSn02:Co P-N Junction Deposited by Spray Pyrolysis for Photovoltaic Application
(2014)SC-,1ICil f('r semiconducting materials for photovoltaic application has attracted a lot of attention rccern l, This research will involve characterization of Sn.Se.: S1102-Co P-N as a solar cell material. SnSe is Ci ... -
Fabrication and Cha r actcrization of Aluminum and Gallium Morroand Co-doped Zinc Oxide Thin Films by Radio Frequency Sputtering For photovoltaic Applications
(28-04-14)There is need to provide low resistivity ZnO transparent conducting thin films by radio frequency (rf) magnetron spunering technique for commercial photovoltaic applications. Rf magnetron spunering technique has comparative ... -
Performance of Ti02/In(OH)xSylPb(OH)xSy Composite eta Solar Cell Fa bricated from Nitrogen Doped Ti02 Thin Film Window
(28-04-14)TiO~ th in lilills were doped with nitrogen (N2) gas and the presence of nitrogen atoms was confirmed in the films hv Energy dispersive x-ray (EDX) spectrum analysis. Undoped TiO: thin films had an energy band gap of ...