Research Dissemination Activities

In the year 2020, the Department published over 15 research papers in peer review journal and made 40 scientific presentations at conferences and workshops as listed below:

  1. Journal Publications
  1. Ndegwa, R., Ayieta, E., Simiyu, J. And Odero, N. (2020) A Simplified Simulation Procedure and Analysis of a Photovoltaic Solar System Using a Single Diode Model. Journal of Power and Energy Engineering, 8, 65-93. https://doi.org/10.4236/jpee.2020.89006.
  1. Mary T. Simiyu, Francis W. Nyongesa, Bernard O. Aduda, Zephania Birech, and Godwin Mwebaze. (2020). Application of An Organic Plant-Derived Binder in the Fabrication of Diatomaceous Earth Waste- Based Membranes for Water Purification Systems: MRS Advances © 2020 Materials Research Society DOI: 10.1557/adv.2020.123.
  1. Brian O. Owino, Francis W. Nyongesa, Alex A. Ogacho, Bernard O. Aduda and Benjamin V. Odari. (2020): Effects of TiO2 Blocking Layer on Photovoltaic Characteristics of TiO2/Nb2O5 Dye Sensitized Solar Cells. MRS Advances © 2020 Materials Research Society DOI: 10.1557/adv.2020.16.
  1. D. Dodoo-Arhin, T.Asiedu, B.Agyei-Tuffour, E.Nyankson, D.Obada, J.M.Mwabora (2020). Photocatalytic degradation of Rhodamine dyes using zinc oxide nanoparticles. Materials Today: Proceedings (2020). https://doi.org/10.1016/j.matpr.2020.04.597.
  1. Kallen Mulilo Nalyanya, Ronald K. Rop, Arthur S. Onyuka, Zephania Birech, Justus J. Okonda. (2020). Variation of elemental concentration in leather during post-tanning operation using energy dispersive X-ray fluorescence spectroscopy: principal component analysis approach. (2020). International Journal of Environmental Analytical Chemistry, 1-13. 103063. https://doi.org/10.1016/j.vibspec.2020.103063.
  1. Zephania Birech, Annah M.Ondieki, Robert I.I.Opati, Peter W. Mwangi., (2020). Low cost Raman sample substrates from conductive silver paint smear for Raman spectroscopic screening of metabolic diseases in whole blood. Vibrational Spectroscopy (2020): P. 103063. https://doi.org/10.1016/j.vibspec.2020.103063.
  1. Dongxian Li, Yanyan Zhang, Qingqian Guo, Xiaoquan Sun, Shun Wang, Zephania Birech, Jiandong Hu, Hao Zhang. (2020). An efficient LSPR method to quantitatively detect dimethoate: Development, characterization and evaluation. Plos One, https://doi.org/10.1371/journal.pone.0239632.
  1. Wang, S., Zhang, H., Li, W., Birech, Z., Ma, L., Li, D. & Hu, J. (2020). “A multi-channel localized surface plasmon resonance system for absorptiometric determination of abscisic acid by using gold nanoparticles functionalized with a polyadenine-tailed aptamer”. Microchimica Acta, 187(1), 20.
  1. Birech, Z., Mwangi, P. W., Sehmi, P. K., & Nyaga, N. M. (2020). “Application of Raman spectroscopy in comparative study of antiobesity influence of oxytocin and freeze‐dried extracts of Uvariodendron anisatum Verdeck (Annonaceae) in Sprague Dawley rats”. Journal of Raman Spectroscopy, 51(3), 398-405.
  1. Marie-Florence A. Yebouet, Ambroise K. Diby, Kenneth A. Kaduki and Jérémie T. Zoueu. (2020). Unstained blood smear contrast enhancement using spectral time multiplexing super resolution. A J. Spectral Imaging 9, a1 (2020).
  1. Charles Opiyo Ayieko, Robinson Juma Musembi, Benard Odhiambo Aduda, Alex Ogacho, Pushpendra Jain. (2020). Photo-thermal Conversion Efficiency of Textured and Untextured Aluminum Substrate Coated with Titanium Dioxide (TiO2)-bound CuFeMnO4 Absorber. American Journal of Modern Energy. 2020; 6(1): 9-15. doi: 10.11648/j.ajme.20200601.12
  1. Robinson Ndegwa, Justus Simiyu, Elijah Ayieta, and Nicodemus Odero. (2020). A Fast and Accurate Analytical Method for Parameter Determination of a Photovoltaic System Based on Manufacturer’s Data, Hindawi Journal of Renewable Energy, Volume 2020, Article ID 7580279, https://doi.org/10.1155/2020/7580279.
  1. Bernard Obuya, Sebastian Waita and Calford Otieno (2020), Biogas from Different Parts of a Banana Plant: A Case Study of the Banana Plant from Kisii County, Journal of Energy Research and Reviews 6(2): 1-10.
  1. Dehayem-Kamadjeu Alix, Ndunda Moses, Wafula David. (2020). Extending usability of old terrestrial fibre optic cables in Third-World Economic Zones, Africa Journal of Physical Sciences Vol. 4, pp. 81-87, June 2020. http://journals.uonbi.ac.ke/index.php/ajps/index
  1. John I. Githaiga, Hudson K. Angeyo, Kenneth A. Kaduki, and Wallace D. Bulimo (2020). Chemometrics-Enabled Raman Spectrometric Qualitative Determination and Assessment of Biochemical Alterations during Early Prostate Cancer proliferation in a Model Tissue. Journal of Spectroscopy, vol. 2020, Article ID 8879985, 15 pages, https://doi.org/10.1155/2020/8879985.
  1. Papers Presented at Conferences and Workshops
  1. M. Simiyu,T. Krauss, and G. Pitruzzello. (Feb 2020), Use of Fluoresce Spectroscopy in the Quantification of Tryptophan L and Escherichia coli in Water, University of York Global Engagements- 3 MT.,University of York, York. England.
  1. Alix Dehayem-Massop. (2020). X-Ray Fluorescence Analysis of Selected Micronutrients in Ten African Indigenous Leafy Vegetables Cultivated in Nairobi, Kenya. World forum for Women in Science, Rio De Janeiro. 12-14 February 2020.
  1. Lynet Allan, Julius Mwabora. George Amolo, Silas Mureramanzi. (2020). Structural and Electronic Properties of Selected Titanium Oxides and Oxynitrides. 11th MRSK/CTheP Material Science Webinar (KENET Web Conference) , 27th May, 2020.
  1. Sami Palm , Sebastian Waita  and  Thomas Nyangonda ,Performance Study of a Grid-connected Photovoltaic Solar System Using MATLAB/SIMULINK,   2nd  Young  Scientists  MSSEESA Virtual Conference on Materials for Solar Energy  Conversion,  University of Nairobi, Kenya, 4th – 6th November, 2020.
  1. Mogunde Charles, Sebastian Waita and Robinson Musembi, Enhanced light absorption of Pennisetum purpureum and Cynodom dactylon Natural Pigment Photosensitizers for Dye Sensitized Solar Cells,  2nd  Young  Scientists  MSSEESA Virtual Conference on Materials for Solar Energy  Conversion,  University of Nairobi, Kenya, 4th – 6th November, 2020.
  1. M. Simiyu (May 2020). ASP Exercise to model the evolution of covid-19 in africa – Kenya. African School of Physics (ASP), Brookhaven National Laboratory, NY, USA.
  1. Mary Taabu, F. W. Nyongesa, B. O. Aduda, Z. Biretch (2020). An Assessment of the Use of Static Magnetic Field for Sodium Fluoride Defluoridation and Removal of Escherichia coli and Rotavirus Pathogens from Water, 2nd  Young  Scientists  MSSEESA Virtual Conference on Materials for Solar Energy  Conversion,  University of Nairobi, Kenya, 4th – 6th November, 2020.
  1. Jorim Obila, E. Ayieta, A. Ogacho. (2020). Stability and Efficiency Improvement of Planar 3D/2D Tin-Based-Perovskite Solar Cells; 2nd  Young  Scientists  MSSEESA Virtual Conference on Materials for Solar Energy  Conversion,  University of Nairobi, Kenya, 4th – 6th November, 2020.
  1. Lynet Allan, Julius Mwabora, George Amolo, Silas Mureramanzi (2020). Effects of Nitrogen Doping on Structural and Electronic Properties of Titanium Dioxide (A DFT Study). Density Functional Theory and Beyond Workshop, Catholic University of Eastern Africa, Kenya. 5th – 6th March, 2020.
  1. Lynet Allan, Julius Mwabora, George Amolo, Silas Mureramanzi. (2020). Structural and Optical Studies Of Selected Titanium Oxides and Titanium Oxynitrides. African Network for Solar Energy(ANSOLE) Scientific meeting in Kenya, ASMKE, Technical University of Kenya, 3rd March, 2020.
  1. Lynet Allan, Julius Mwabora, George Amolo, Silas Mureramanzi. (2020). Structural and optical studies of selected titanium oxides and titanium oxynitrides. (a DFT study).  The Need for Awareness of Areas of Research in Scientific Computing and Advancement of Learning, Technical University of Kenya. 21stFebruary 2020
  1. Brian Owino, F. W. Nyongesa, B. O. Aduda. (2020). Investigation on the Performance and Stability of Cs3Sb2I9 Based Perovskite Solar Cells Employing P3HT and CuSCN Hole Transport Materials; 2nd  Young  Scientists  MSSEESA Virtual Conference on Materials for Solar Energy  Conversion,  University of Nairobi, Kenya, 4th – 6th November, 2020.
  1. Lynet Allan, J. M. Mwabora, George Amolo, Silas Mureramanzi, (2020). Ab initio Study of Structural and Electronic Properties of Selected Titanium Oxides and Oxynitrides; 2nd  Young  Scientists  MSSEESA Virtual Conference on Materials for Solar Energy  Conversion,  University of Nairobi, Kenya, 4th – 6th November, 2020.
  1. Bill Clinton Oyomo, (2020). Thermoelectric Transport Properties of Tin Selenide from First-principles Calculations; 2nd  Young  Scientists  MSSEESA Virtual Conference on Materials for Solar Energy  Conversion,  University of Nairobi, Kenya, 4th – 6th November, 2020.
  1. Hellen Sisia Ouma, J. M. Mwabora, Cosmus Muiva, (2020). Optical Properties of Amorphous Selenium-Bismuth-Tin Thin Films Deposited by Flash Evaporation Method; 2nd  Young  Scientists  MSSEESA Virtual Conference on Materials for Solar Energy  Conversion,  University of Nairobi, Kenya, 4th – 6th November, 2020.
  1. Prof. F. W. Nyongesa Prof. Gen Tatara, Prof. S. Ali Mohamed, Prof. A. Hagfeldt, Dr. B. V. Odari, Prof. J. M. Mwabora,Prof. R. J. Musembi. (2020). Research and Development of Affordable Photovoltaics Based on Lead-Free Solar Cell Technology. Poster presented at the Icipe at 50 celebrations, Dec 2020, Nairobi, Kenya
  1. M. Simiyu F. Nyongesa, B. Aduda, Z. Birech, N. Ilin, D. Andala, V. Odari (2020). Strength-Porosity Relationship in Diatomaceous-Based Membranes and the Role of Aspect Ratio in Filtration. 2nd Edition of the CREPAS conference, 14th - 16th December 2020, Université de Lomé. Togo.
  1. Ibrahim Mahamud, Sebastian Waita and Robinson Musembi, Optical properties of Antimony Doped TiO2 Compact layer Deposited through Dip coating, 2nd  Young  Scientists  MSSEESA Virtual Conference on Materials for Solar Energy  Conversion,  University of Nairobi, Kenya, 4th – 6th November, 2020.
  1. Lilian Anyanga, Sebastian Waita, Robinson Musembi and F. W. Nyongesa: Effect of annealing atmosphere of the Optical and Electrical TiO2:Ge thin films,  2nd  Young  Scientists  MSSEESA Virtual Conference on Materials for Solar Energy  Conversion,  University of Nairobi, Kenya, 4th – 6th November, 2020.
  1. Rita Mwende, Sebastian Waita and Okeng’o G. O, The Effect of Irradiance and Module Temperature on the Performance of a 1.5kW Photovoltaic (PV) System., 2nd  Young  Scientists  MSSEESA Virtual Conference on Materials for Solar Energy  Conversion,  University of Nairobi, Kenya, 4th – 6th November, 2020.
  1. Munala Yobesa, Sebastian Waita and  Geoffrey Okeng’o, Underwater Solar Photovoltaic (PV) Systems: Effect of Depth on Irradiance, Module Temperature and Ambient Temperature, 2nd  Young  Scientists  MSSEESA Virtual Conference on Materials for Solar Energy  Conversion,  University of Nairobi, Kenya, 4th – 6th November, 2020.
  1. Mwende Mbilo (2020). Effects of Structure formation Methods on the Optical and Electrical Properties of Organometallic Halide Perovskite Films; 2nd  Young  Scientists  MSSEESA Virtual Conference on Materials for Solar Energy  Conversion,  University of Nairobi, Kenya, 4th – 6th November, 2020.
  1. Ahmed Ali Kabir, F. W. Nyongesa. (2020). Synthetization and Characterization of Nanofluids, Magneto-Rheological Nanofluids (MRNF) for Optimum Heat Transfer in Solar Thermal Concentrators and Energy Storage Systems; 2nd  Young  Scientists  MSSEESA Virtual Conference on Materials for Solar Energy  Conversion,  University of Nairobi, Kenya, 4th – 6th November, 2020.
  1. Martin Angsong Analysis of a Standalone PV/Fuel Cell/Diesel Hybrid Power System for an Off-grid Gold mine; Mr., University of Nairobi, Kenya. 2nd  Young  Scientists  MSSEESA Virtual Conference on Materials for Solar Energy  Conversion,  University of Nairobi, Kenya, 4th – 6th November, 2020.
  1. Palm Sami Florent, Performance Study of a Grid-connected Photovoltaic Solar System Using MATLAB/SIMULINK; 2nd  Young  Scientists  MSSEESA Virtual Conference on Materials for Solar Energy  Conversion,  University of Nairobi, Kenya, 4th – 6th November, 2020.
  1. Fredrick Mwange Mulei Power System Frequency Stability and Control for increased solar penetration in Kenya – A review; 2nd  Young  Scientists  MSSEESA Virtual Conference on Materials for Solar Energy  Conversion,  University of Nairobi, Kenya, 4th – 6th November, 2020.
  1. Alex Okello, Brian Owour, Victor Odari, Jane Namukobe, Denis Okello, Julius Mwabora. (2020). Influence of Anthocyanins Concentration on Electron Transport of Dye Sensitized Solar Cells; 2nd  Young  Scientists  MSSEESA Virtual Conference on Materials for Solar Energy  Conversion,  University of Nairobi, Kenya, 4th – 6th November, 2020.
  1. Mary T. Simiyu, Francis W. Nyongesa, Bernard O. Aduda, Zephania Birech, Godwin Mwebase, Alex Ogacho and Gloria K. Maitha (2020). Use of Organic Binders and Molasses to Enhance Efficiency of Diatomaceous Earth-Based Ceramic Filters. 3rd CBPS Annual Research week on Sciences and cross disciplinary research and practices transforming society for sustainable development, University of Nairobi,  14th-16th Oct 2020.
  1. Robinson Musembi: Progress and Review of Novel eta Solar Cell; 3rd CBPS Annual Research week on Sciences and cross disciplinary research and practices transforming society for sustainable development, University of Nairobi,  14th-16th Oct 2020.
  1. Sebastian  Waita and  Rita Mwende, Design and Installation of the First 3Kw Grid tie Photovoltaic Solar system at the Department of Physics, Chiromo Campus, University of Nairobi,  3rd CBPS Annual Research week on Sciences and cross disciplinary research and practices transforming society for sustainable development, University of Nairobi,  14th-16th Oct 2020
  1. Opati, R. I., Birech, Z. and Kaniu, M.I (2020). Rapid assessment of honey adulteration using laser Raman spectroscopy and machine learning techniques; 3rd CBPS Annual Research week on Sciences and cross disciplinary research and practices transforming society for sustainable development, University of Nairobi,  14th-16th Oct 2020.
  1. Ndegwa Charles Ndung'u (2020): Rapid and Non-destructive Screening of Agrochemical Residues Using Chemometrics-Assisted Diffuse Reflectance Vis/NIR spectroscopy; 3rd CBPS Annual Research week on Sciences and cross disciplinary research and practices transforming society for sustainable development, University of Nairobi,  14th-16th Oct 2020.
  1. John I. Githaiga, Hudson. K. Angeyo, Kenneth A. Kaduki,Wallace D. Bulimo and Daniel K. Ojuka (2020): Concurrent Chemometrics assistedRaman spectroscopy of whole blood and saliva as a perspective method for breast cancer diagnostics: a preliminary study; 3rd CBPS Annual Research week on Sciences and cross disciplinary research and practices transforming society for sustainable development, University of Nairobi,  14th-16th Oct 2020.
  1. Ibrahim Mahamud, Robinson Musembi, S.Waita (2020): Optical Properties Antimony doped TiO2 Compact Layer Deposited through Dip Coating; 3rd CBPS Annual Research week on Sciences and cross disciplinary research and practices transforming society for sustainable development, University of Nairobi,  14th-16th Oct 2020.
  1. Kaniu M. I.: Use of GPS-enabled Portable Detectors in the Survey and Mapping of Radiation Anomalies in Kenya; 3rd CBPS Annual Research week on Sciences and cross disciplinary research and practices transforming society for sustainable development, University of Nairobi,  14th-16th Oct 2020.
  1. Ondieki Moraa Annah, Zephania Birech, Kenneth Kaduki & Catherine Kaluwa: Raman spectrometric study of influence of acetaminophen on female reproductive hormone levels in blood; 3rd CBPS Annual Research week on Sciences and cross disciplinary research and practices transforming society for sustainable development, University of Nairobi,  14th-16th Oct 2020.
  1. Sebastian Waita, Photovoltaic off grid Solar Home System Sizing using the charging current and total Energy methods: A Comparison of the two sizing methods, Virtual International Conference on Phytochemistry, Textile & Renewable Energy for Sustainable Development, Advancing Science, Technology and Innovation for Industrial Growth,  Sirikwa Hotel, Eldoret, August 11th-15th, 2020.
  1. An online Oral Presentation on “Strength-Porosity Relationship in Diatomaceous-Based Membranes and the Role of the Aspect Ratio in Filtration” in the 2nd Regional Colloquium on Physics and Applications (CRePAs) 2020 at Université de Lomé, Lomé-Togo on 14th to 16th December 2020
  1. M. Simiyu, J. Okwako, G. Maitha, and E. Wafula . (Nov 2020) BACAPO SOCIAL ENTERPRISE: Controlling Food Wastage Using Laser light and Solar Energy., First Runners-up of UoN Hult Prize On-campus program Finals. University of Nairobi, Nairobi, Kenya
  1. M. Simiyu, J. Okwako, G. Maitha, and E. Wafula . (Nov 2020) BACAPO SOCIAL ENTERPRISE: Value addition in African Indigenous Food using Laser light and Solar Energy., First Runners-up of UoN Hult Prize On-campus program Semi-finals . University of Nairobi, Nairobi, Kenya
  1. M. Simiyu, J. Okwako, G. Maitha, and E. Wafula . (Oct 2020) BACAPO SOCIAL ENTERPRISE: provide healthy food to Humanity Using Physics., University of Nairobi Hult Prize On-campus program Quarter-finals . University of Nairobi, Nairobi, Kenya
  1. Trainer of Trainees on Sustainable Children Rights Protection and Post Institutional Care and Care and Child Protection Policy (SCRIPPIC) Care Model of AOSK held at Chemchemiya Uzima – Nairobi on 16th to 24th October 2020.

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