Bio

Publications


2016

Ogacho, A, Aduda BO.  2016.  Structural, Optical and Photoelectrochemical Properties of Cuprous Oxide Synthesized by Low Temperature Thermal Oxidation. Material Science Research India. 13 Abstract

Ultrathin films (50-150nm thick) cuprous oxide (Cu2O) thin films were deposited by low temperature thermal oxidation technique. The structural, optical and photoelectrochemical properties of the thin films were investigated. X-ray diffraction (XRD) and high resolution scanning electron microscope (SEM) was used to study the phase composition and the thin films’ microstructure respectively. XRD results showed that Cu2O was the dominant phase albeit some trace CuO peaks were also observed indicating surface formation of an extremely layer of CuO probably during the cooling process following either deposition or during the annealing steps. SEM showed a highly nanostructure consisting long narrow nanorods with broadening to the surface but with extremely narrow, sharp cylindrical roots standing on the substrate. Photoelectrochemical properties of the films were studied via a standard three electrode using a saturated calomel cell (SCE).

Ayieko, CO, R. J. Musembi, A. A. Ogacho, B. O. Aduda, B. M. Muthoka, P. K. Jain.  2016.  Optical Characterization of TiO2-bound (CuFeMnO4) Absorber Paint for Solar Thermal Applications. American Journal of Energy Research. 4(1):11-15.

2015

Charles Opiyo Ayieko, Musembi RJ, Alex Awuor Ogacho, Benard Odhiambo Aduda, Boniface Mutua Muthoka, Jain PK.  2015.  Controlled Texturing of Aluminum Sheet for Solar Energy Applications. Advances in Materials Physics and Chemistry. 5(11):458-466.
Ogacho A. A., Ajuoga P., Aduda B. O..  2015.  Suppression of Anatase to Rutile Phase Transformation of Niobium doped TiO2 Synthesized by High Temperature Diffusion Technique. International Journal for Innovation Education and Research. 6(3):140-146.

2014

Simiyu, J, WAITA SEBASTIAN, Robinson Musembi, Ogacho A, Aduda B.  2014.  Promotion of PV Uptake and Sector Growth in Kenya through Value Added Training in PV Sizing, Installation and Maintenance. Energy Procedia. 7:817-825.

2013

Ajuoga, P, Ogacho A, Aduda B, Mwabora JM.  2013.  Alex Ogacho Alex Ogacho Niobium Doped TiO2 (Nb:TiO2) : Effects of Doping Concentration on the Optical Properties of TiO2. 1st Young Scientist MSSEESA Conference on Materials Science and Solar Cell Technology. , United Nairobi Club, Nairobi, Kenya: MSSEESA

2009

C. Herzog, A. Belaidi, and A. Ogacho, Th. Dittrich.  2009.  Inorganic Solid State Solar Cell with Ultra-thin Nanocomposite Absorber based on Nanoporous TiO2 and In2S3. Energy and Environmental Science. 2:962-964.

2006

A. A. Ogacho, and B. O. Aduda, Nyongesa FW.  2006.  Thermal Shock Behaviour of a Kaolinte Refractory prepared using a natural organic binder. Journal of Material Science. 41:8276-8283.

2005

Th. Dittrich, H.-J. Muffler, M. Vogel, T. Guminskaya, A. Ogacho, A. Belaidi, E. Strub, W. Bohne, J. Röhrich, and O. Hilt, Lux-Steiner MC.  2005.  Passivation of TiO2 by Ultra-thin alumina. Applied Surface Science . 240 :236-243.

2003

A. Ogacho, and B. O. Aduda, Nyongesa FW.  2003.  Thermal conductivity of a kaolinite refractory: effect of a plant-derived organic binder. J. Mat. Sci. 38 :2293-2297.

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