Prof. MUSEMBI ROBINSON JUMA

PDF Upload: 

cv_musembi_january_2021.pdf

Publication in refereed Journals Since the Last Appointment (2014 -2018)

1. John Nguu, Francis Nyongesa, Robinson Musembi and Bernard Aduda: Electrophoretic Deposition and Characterization of TiO2/Nb2O5 Composite Thin Films for Dye Sensitized Solar Cells, Journal of Materials Physics and Chemsitry, 6 (1) (2018) 1 – 8.
2. Muthui Zipporah, Musembi Robinson, Mwabora Julius, and Kashyap Arti: Perpendicular Magnetic Anisotropy in Mn₂Vin Films: An ab initio Study, AIP Advances, 8 (2018) 055701-1 – 055701-7 doi:10.1109/TMAG.2017.2756618.
3. Nelson Mugambi, Mathew Munji, Robinson Musembi, John Gitonga, Geoffrey Gitonga: Optical Characterization of SnxSey/SnO2:Ni Prepared by Spray Pyrolysis for Photovoltaic Application, American Journal of Material Science, 7(6) (2017) 240-249.
4. John Gitonga, Mathew Munji, Robinson Musembi, Nelson Mugambi, Geoffrey Gitonga: Effect of Substrate Temperature on the Optical Properties of SnxSey/ZnO;Al p-n Junction Solar Cell, American Journal of Material Science, 7(6) (2017) 250-257.
5. Geoffrey Gitonga, Mathew Munji, Robinson Musembi, Nelson Mugambi, John Gitonga,: Optical Characterization of SnxSey/SnO2:Co p-n Junction Deposited by Spray Pyrolysis for Photovoltaic Application, American Journal of Material Science, 7(6) (2017) 258-265..
6. Zipporah W. Muthui, Robinson J. Musembi, Julius Mwabora, Ralph Skomski, and Arti Kashyap: Structural, Electronic and Magnetic Properties of the Heusler Alloy Mn₂VIn, IEEE Transactions on Magnetics, 54 (1)  (2017) 1000105- 1 – 5 doi:10.1109/TMAG.2017.2756618.
7. Muthui Zipporah, Musembi Robinson, Mwabora Julius, and Kashyap Arti: Perpendicular magnetic anisotropy in nearly fully compensated ferrimagnetic Heusler alloy Mn_0.75Co_1.75VIn: An abinitio study, Journal of Magnetism and Magnetic Materials, 442 (2017) 343 – 349.
8. Muthui Zipporah, Pathak Rohit, Musembi Robinson, Mwabora Julius, Skomski Ralph, and Kashyap Arti: First-principle Investigation of Structural, Electronic and Magnetic Properties of Co₂VIn and CoVIn Heusler Compounds, AIP Advances, 7 (2017) 055705-1 – 055705-7.
9. Henry Barasa Wafula, Robinson Juma Musembi, Albert Owino Juma, Patrick Tonui, Justus Simiyu,Thomas Sakwa, Deo Prakash, K.D. Verma: Compositional Analysis and Optical Properties of Co doped TiO2 Thin Films Fabricated by Spray Pyrolysis Method for Dielectric and Photocatalytic Applications, Optik- International Journal for Light and Electron Optics,128 (2017) 212 – 217, doi: 10.1016/j.ijleo.2016.08.107.
10. Victor Meng’wa, George Amolo, Nicholas Makau, Samuel Lutta, Maurice Okoth, Julius Mwabora, Robinson Musembi, Christopher Maghanga, and Robert Gateru: Electronic Properties of Catechol Adsorbed on Rutile TiO₂ and SnO₂ (110) Surfaces: A Density Functional Theory Study, The African Review of Physics, 11 (0021) (2016) 157 – 165.
11. Henry Wafula, Albert Juma, Thomas Sakwa, Robinson Musembi and Justus Simiyu: A Surface Photovoltage Study of Surface Defects on Co-doped TiO₂ Thin Films Deposited by Spray Pyrolysis, Coatings, 6 (30) (2016) 1 - 9, doi:10.3390/coatings6030030.
12. C.O. Ayieko, R.J. Musembi, A. A. Ogacho, B.O. Aduda, B.M. Muthoka, P.K. Jain: Optical Characterization of TiO₂-bound (CuFeMnO₄) Absorber Paint for Solar Thermal Applications, American Journal of Energy Research, 4 (1) (2016),11 – 15, DOI:10.12691/ajer-4-1-2.
13. Charles Opiyo Ayieko, Robinson Juma Musembi, Alex Awuor Ogacho, Bernard Odhiambo Aduda, Boniface Mutua Muthoka, Pushpendra Kamal Jain: Controlled Texturing of Aluminum Sheet for Solar Energy Applications, Advances in Materials Physics and Chemistry, 5 (2015), 458 – 466, http://dx.doi.org/10.4236/ampc.2015.511046.
14. Patrick Mwinzi Mwathe, Robinson Musembi, Mathew Munji, Francis Nyongesa, Benjamin Odari, Walter Njoroge, Bernard Aduda, and Boniface Muthoka: Effect of Annealing and Surface Passivation on Doped SnO₂ Thin Films Prepared by Spray Pyrolysis Technique, Advances in Materials, 4 (3) (2015), 51-58, DOI: 10.11648/j.am.20150403.12: ISSN 2327-252X.
15. Valentine Muramba, Maxwell Mageto, Francis Gaitho,Victor Odari, Robinson Musembi, Silas Mureramanzi, Kennedy Ayodo: Structural and Optical characterization of Tin Oxide co-doped with Aluminum and Sulphur, American Journal of Materials Science, 5(2), (2015), 23 – 30, DOI: 10.5923/j.materials.20150502.01,http://journal.sapub.org/materials. 
16. J.N. Nguu, B.O. Aduda, F.W. Nyongesa, R.J. Musembi, S.M. Njogu, P.M. Mwathe: Electrical Characterization of Nano-TiO₂/Nb₂O₅ Composite Thin Films Deposited Using Electrophoretic Deposition Technique, International Journal of Innovative Research in Advanced Engineering (IJIRAE), 2 (2) (2015), 192 – 198, ISSN 2349-2163, www.ijirae.com.
17. Henry Wafula, Musembi Robinson, Albert Juma, Thomas Sakwa, Manasse Kitui, Rodrigo Araoz and Christian-H. Fischer: Role of Cl on Diffusion of Cu in In₂S₃ Layers Prepared by Ion Layer Gas Reaction Method, Coatings, 5 (2015), 54 – 62, DOI: 10.3390/coatings5010054: ISSN 2079-6412.
18. Justus Simiyu, Sebastian Waita, Robinson Musembi, Alex Ogacho, Bernard Aduda: Promotion of PV Uptake and Sector Growth in Kenya through Value Added Training in PV Sizing, Installation and Maintenance, Energy Procedia, 57 (2014), 817 – 825, DOI: 10.1016/j.egypro.2014.10.290.
19. Patrick Mwathe, Robinson Musembi, Mathew Munji, Victor Odari, Lawrence Munguti, Alex Ntilakigwa, John Nguu, and Boniface Muthoka: Effect of Surface Passivation on Electrical Properties of Pd-F:SnO₂ Thin Films Prepared by Spray Pyrolysis Technique, Coatings, 4 (2014), 747- 755, DOI: 10.3390/coatings4040747: ISSN 2079-6412.
20. Patrick Mwinzi Mwathe, Robinson Musembi, Mathew Munji, Benjamin Odari, Lawrence Munguti, Alex Alfred Ntilakigwa, Julius Mwabora, Walter Njoroge, Bernard Aduda, and Boniface Muthoka: Surface passivation effect on CO₂ sensitivity of spray pyrolysis deposited Pd-F:SnO₂ thin film gas sensor, Advances in Materials, 3(5) (2014), 38 - 44,DOI: 10.1164/j.am.20140305.12.
21. Patrick Mwinzi Mwathe, Robinson Musembi, Mathew Munji, Benjamin Odari, Lawrence Munguti, Alex Alfred Ntilakigwa, John Nguu, Bernard Aduda, and Boniface Muthoka: Influence of Surface Passivation on Optical Properties of Spray Pyrolysis Deposited Pd-F:SnO₂, International Journal of Materials Science and Applications, 3(5) (2014), 137 – 142,DOI: 10.11648/j.jmsa.20140305.11.
22. Awino Maureiq Edith Ojwang, Daniel A. Achinko, Anton Dormer, Robinson Musembi, Walter Mwanda, James Ochanda: Insilico Identification of Universal HLA Stimulating B and T-cell Resitricted MAGE Epitopes for Vaccine Development, Online Journal of Bioinformatics, 15 (1) (2014), 114 – 132.
23. John Nguu,Susan Ndivo, Bernard Aduda, Francis W. Nyongesa, Robinson J. Musembi: Livestock Farmers’ Perception on Generation of Cattle Waste-based Biogas Methane: the Case of Embu West District, Journal of Energy Technology and Policy, Vol. 4(8) (2014), 1 - 7.

1. John Nguu, Robinson J. Musembi, Francis W. Nyongesa and Bernard O. Aduda: Effect of Process-Related Parameters on Band Gap of Electrophoretically Deposited TiO₂/Nb₂O₅ Composite Thin Films, African Journal of Physical Sciences, 1 (1) (2014) 43 – 49.
2. L.K. Munguti, R.J. Musembi, W.K. Njoroge: Optimization of Sn_xSe_y Deposited by Reactive Thermal Evaporation for Solar Cell Application, Elixir Thin Film Technology, 71 (2014) 24961 – 24964.
3. John Njagi Nguu, Bernard Odhiambo Aduda, Francis Wanjala Nyongesa, Robinson Juma Musembi: Electrophoretic Deposition of TiO₂/Nb₂O₅ Composite Electrode Thin Films for Photovoltaic Application, Journal of Energy and Power Engineering, 8 (2014) 757 – 764.

Publication in refereed Journal ( 2005 – 2013)

1. Robinson Musembi, Bernard Aduda, Julius Mwabora, Marin Rusu, Konstantinos Fostiropoulos, Martha Lux-Steiner: Light Soaking Induced Increase in Conversion Efficiency of eta Solar Cell Based on In(OH)_xS_y/Pb(OH)_xS_y, Materials Sciences and Applications,4 (2013) 718 – 722, DOI 10.4236/msa.2013.411090.
2. L.K. Munguti, R.J. Musembi, W.K. Njoroge: ZnO:Sn Deposition by Reactive Evaporation: Effects of Doping on the Electrical and Optical Properties, Elixir Thin Film Technology, 61 (2013) 17162 – 17165.
3. Robinson Musembi, Bernard Aduda, Julius Mwabora, Marin Rusu, Konstantinos Fostiropoulos, Martha Lux-Steiner: Effect of Recombination on Series Resistance in eta Solar Cell Modified with In(OH)_xS_y Buffer Layer, International Journal of Energy Engineering, 3 (3) (2013) 183-189, DOI:10.5923/j.ijee.20130303.09.
4. Benjamin Victor Odari, Robinson Juma Musembi, Maxwell Joel Mageto, Herick Othieno, Francis Gaitho, Mwamburi Mghendi, Valentine Muramba: Optoelectronic properties of F-co-doped PTO Thin Films Deposited by Spray Pyrolysis, American Journal of Material Science, 3 (4) (2013) 91-99, DOI:10.5923/j.materials.20130304.05.
5. B.V. Odari, M. Mageto, R.J. Musembi,H. Othieno, F. Gaitho, V. Muramba: Optical and Electrical Properties of Pd Doped SnO₂ Thin Films Deposited by Spray Pyrolysis, Australian Journal of Basic and Applied Sciences, 7(2) (2013) 89-98.
6. C.O. Ayieko, R. J. Musembi, S. M. Waita B. O. Aduda, P. K. Jain: Performance of TiO₂/In(OH)_iS_j/Pb(OH)_xS_y Composite ETA Solar Cell Fabricated from Nitrogen Doped TiO2 Thin Film Window Layer,  International Journal of Materials Engineering, 3 (2) (2013) 11 – 16, DOI 10.5923/j.ijme.20130302.01.
7. C.O. Ayieko, R. J. Musembi, S. M. Waita, B. O. Aduda, P. K. Jain: Structural and Optical Characterization of Nitrogen-doped TiO₂ Thin Films Deposited by Spray Pyrolysis on Fluorine Doped Tin Oxide (FTO) Coated Glass Slides, International Journal of Energy Engineering, 2(3) (2012) 67-72: DOI 10.5923/j.ijee.20120203.02.
8. R.J. Musembi, B.O. Aduda, J. M. Mwabora, R. Bayon: Solar Cell with Extremely Thin Absorber (eta) Based on Novel eta Concept, Africa Journal of Science and Technology,9 (2), (2008) 55 – 59.
9. R.J. Musembi, M.Rusu, J.M. Mwabora, B.O. Aduda, K. Fostiropoulos, M.Ch. Lux-Steiner:  Intensity and Temperature Dependent Characterization of eta Solar Cell, Physica Status Solidi,205 7 (2008) 1713 – 1718, DOI 10.1002/pssa.200723466).
10. R. Bayon, R. Musembi, A. Belaidi, M. Bar, T. Guminskaya, M.Ch. Lux-Steiner, Th. Dittrich: Highly Structured TiO₂/In(OH)_xS_y/PbS/PEDOT:PSS to be used in Photovoltaic, Comptes Rendus Chimie 9 5-6 (2006) 73-734.
11. R. Bayon, R. Musembi, A. Belaidi, M. Bar, T. Guminskaya, M. Ch. Lux-Steiner, Th. Dittrich: Highly Structured TiO₂/In(OH)_xS_y/PbS/PEDOT:PSS for Photovoltaic Application, Solar Energy Materials and Solar Cells, 89 (2005) 13 -19.

Refereed Conference Papers since the Last Appointment (2014 -2018)

1. L. K. Munguti, R.J. Musembi, W.K. Njoroge: Optimization of Sn_xSe_y Deposited by Reactive Thermal Evaporation for Solar cell Application, Proceedings, 1^st Young Scientist MSSEESA Conference on Materials Science and Solar Cell Technology, United Kenya Club, Nairobi, Kenya, 28 – 29, November, 2017.
2. W. Mulwa, N. W.  Makau, G. O. Amolo,S. Lutta, M. D. O. Okoth,J.M. Mwabora, R.J. Musembi, C.M. Maghanga, R. Gateru:  Structural and Electronic Properties of TiO2, Nb:TiO2 and Cr:TiO2: A First Principles Study, Proceedings, 1^st Young Scientist MSSEESA Conference on Materials Science and Solar Cell Technology, United Kenya Club, Nairobi, Kenya, 28 – 29, November, 2017.
3. B.V. Odari, M. Mageto, R. Musembi, H. Othieno, F. Gaitho, V. Muramba: Optical and Electrical Properties of Pd Doped SnO2 Thin Films Deposited By Spray Pyrolysis, Proceedings, 1st Young Scientist MSSEESA Conference on Materials Science and Solar Cell Technology, United Kenya Club, Nairobi, Kenya, 28 – 29, November, 2017.
4. V. K. Mengwa, N. W.  Makau, G. O. Amolo, S. Lutta, M. D. O. Okoth,J.M. Mwabora, R.J. Musembi, C.M. Maghanga, R. Gateru, A Density Functional Theory Study of Electronic Structure of TiO₂ Rutile (110) Surfaces with Catechol Adsorbate, Proceedings, 1st Young Scientist MSSEESA Conference on Materials Science and Solar Cell Technology, United Kenya Club, Nairobi, Kenya, 28 – 29, November, 2017.
5. P. K. Nyaga, R. J. Musembi and M. K. Munji: Effect of Sn Doping on the Electrical Properties of as Prepared and annealed ZnO thin films Prepared by Reactive Evaporation, Proceedings, 1st Young Scientist MSSEESA Conference on Materials Science and Solar Cell Technology, United Kenya Club, Nairobi, Kenya, 28 – 29, November, 2017.
6. D . Magero, N. W.  Makau, G. O. Amolo, S. Lutta, M. D. O. Okoth,J.M. Mwabora, R.J. Musembi, C.M. Maghanga, R. Gateru, Hydrogen as an alternative fuel: An ab-initio study of Lithium Hydride and Magnesium Hydride, Proceedings, 1st Young Scientist MSSEESA Conference on Materials Science and Solar Cell Technology, United Kenya Club, Nairobi, Kenya, 28 – 29, November, 2017.
7. C.O. Ayieko, B.O. Aduda, R.J. Musembi, S.M. Waita, P.K. Jain: Performance of TiO₂/In(OH)_xS_y/Pb(OH)_xS_y Composite eta Solar Cell Fabricated from Nitrogen Doped TiO2 Thin Film Window Layer, Proceedings, 1st Young Scientist MSSEESA Conference on Materials Science and Solar Cell Technology, United Kenya Club, Nairobi, Kenya, 28 – 29, November, 2017.
8. J. N. Nguu, F W Nyongesa, R. J Musembi, ,  B.O.Aduda: Morphological and Structural Characterization of TiO2/Nb2O5 Composite Electrode Thin Films Synthesized by Electrophoretic Deposition (EPD) Technique, Proceedings, 1st Young Scientist MSSEESA Conference on Materials Science and Solar Cell Technology, United Kenya Club, Nairobi, Kenya, 28 – 29, November, 2017.
9. P. V.  Mwonga, N. W.  Makau, G. O. Amolo, S. Lutta, M. D. O. Okoth,J.M. Mwabora, R.J. Musembi, C.M. Maghanga, R. Gateru, Ab-initio Studies of Point Defects in TiO2: A Density Functional Approach, Proceedings, 1st Young Scientist MSSEESA Conference on Materials Science and Solar Cell Technology, United Kenya Club, Nairobi, Kenya, 28 – 29, November, 2017.
10. A. Alfred, J.M. Mwabora, R.J. Musembi, S.M. Waita: Effects of Oxygen Partial Pressure and Substrate Temperature on Optical Properties of Sputter Deposited CuCrO2 Thin Films, Proceedings, 1st Young Scientist MSSEESA Conference on Materials Science and Solar Cell Technology, United Kenya Club, Nairobi, Kenya, 28 – 29, November, 2017.
11.  V. Muramba, M. Mageto, F. Gaitho, V. Odari, R. Musembi,J. Simiyu, J. Mwabora: Preparation and Characterization of Transparent and Conducting Doped Tin Oxide, Proceedings, 1st Young Scientist MSSEESA Conference on Materials Science and Solar Cell Technology, United Kenya Club, Nairobi, Kenya, 28 – 29, November, 2017.
12. C.O. Ayieko, R.J. Musembi, S.M. Waita, B.O. Aduda, P.K. Jain: Structural and Optical Characterization of Nitrogen-Doped TiO_2­ Thin Films Deposited by Spray Pyrolysis on Fluorine Doped Tin Oxide (FTO) Coated Glass Slides, African Materials Science and Engineering Network (AMSEN), A Carnegie-IAS Regional Initiative in Science and Education Network, 2^nd AMSEN Workshop, Silver Springs Hotel, Nairobi, Kenya, 21^st – 23^rd March 2017.
13. C.O. Ayieko, R.J. Musembi, A.A. Ogacho, B.O. Aduda, B.M. Muthoka and P.K. Jain: Characterization of TiO₂ Bound FeMnCuO₄ Solar Absorber Paint on Textured Aluminum Substrates for Solar Thermal Applications, The Birchwood Hotel, Johannesburg, South Africa, 27 – 29, May 2015.

Conference papers (2005 – 2013)

1. Robinson J. Musembi, Bernard O. Aduda, Julius M. Mwabora, Marin Rusu, Konstantinos Fostiropoulos, and Martha Ch. Lux-Steiner,Transport Mechanism Studies of ETA Solar Cell, Proceedings Conclave of Afro – Asia Young Scientists “Energy, Climate and Development” Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore, India, 11^th – 13^th February 2010.
2. R.J. Musembi, B. O. Aduda, J.M. Mwabora, M. Rusu, K. Fostiropoulos, and Martha Ch. Lux-Steiner. Current Transport in TiO₂/In(OH)_xS_y/Pb(OH)_xS_y/PEDOT:PSS eta Solar Cell, Proceedings The first International Conference on Solar Energy Materials Research, Belinda Ocean Resort, Dar es Salaam, Tanzania, 13^th – 15^th October, 2009
3. R.J. Musembi, G. Mbise, J.M. Mwabora. Accelerated Degradation Studies of MgF₂/Al/MgF₂ multilayer coatings for angular dependent smart window, Proceedings 6^th College on Thin Film Technology, University of Dar el Salaam, Dar el Salaam, Tanzania, July 24^th – Aug. 4^th September 2001.

Submitted papers in Journals for Publication in 2018

1. Muthui Zipporah, Pathak Rohit, Musembi Robinson, Mwabora Julius, Skomski Ralph, and Kashyap Arti: Magnetic Properties of Co2VIn and CoVIn Heuslers Alloys, American Journal of Physics, 2018.

Student Supervised to completion since last appointment (2014 – 2018)

Professional Associations Membership

1. Material Research Society Kenya Chapter, Vice Chairman since January 2018 – date
2. Kenya National Young Academy of Science, Vice Chairman since 2014 – date
3. African Network for Solar Energy, Kenyan Representative since 2013 – date
4. Material Science for Solar Energy for Eastern and Southern Africa, Member MSSEESA
5. European Physical Society EPS, Member since 2010
6. Associate Member of Institute of Physics, UK, member since 2007.

Development Funding Attraction since appointment as Senior Lecturer

1. Joint International Science Programme proposal for purchase of High Performance Desktop Computer for implementing Density Functional Theory by Computational Method, the computers were worth Ksh 500,000/=.
2. Joint International Science Programme proposal for purchase of Four Point Probe, tendering done, LPO approved, 4 point probe to be installed anytime worth Ksh 5,000,000/=.

Conferences / Workshops/ Schools/ Seminars attended 2014 - 2018

1. National University of Lesotho International Science and Technology Innovation Conference and Expo (NULISTICE) with Africa-EU Renewable Energy Research and innovation Symposium (RERIS) Conference, 23^rd – 26^th January 2018, Maseru, Lesotho (2018).
2. Workshop on Solar Energy Materials for Energy Need in africa, In Honour of the Late Prof. Rogath Kivaisi and 2^nd MSSEESA Conference, October 30^th - 2^nd November 2017, Dar es Salaam, Tanzania (2017).
3. The 3^rd Worldwide Meeting of National Young Academies, 20 – 21 July 2017, Johanesburg, South Africa (2017).
4. ANSOLE DAYS 2017: Solar Energy Materials and Applications, 5^th – 8^th May 2017 Hammamet, Tunisia (2017).
5. The 3^rd Africa Mini Grids Summit, Serena Hotel, Dar es Salaam, Tanzania, 28 – 29 November 2016 (2016).
6. 2^nd African Regional Young Academies Conference,Voila Bagatelle Hotel, Moka, Port Louis, Mauritius, 24^th – 26^th October, 2016 (2016).
7. One Month Visit to Indian Institute of Technology, Roorkee, Uttarakand, India, under CV Raman Senior Fellorship Fellowship funded by Federation of Indian Chamber of Commerce and Industry (FICCI) September, 2016 (2016).
8. Young Scientist Conference and 6^th General Assembly of the Nigerian Young Academy of Science, Sheraton Hotel, Ikeja, Lagos, Nigeria, 23^rd – 24^th August, 2016 (2016).
9. International Conference on Renewable Energy INCORE2016, Zewail City of Science and Technology, 6^th of October City, Egypt, 3 – 6 February, 2016 (2016).
10. International Summer School for Young Scientist from East and Southern Africa: Renewable Energies for Africa, Solar Energy and its Applications, Nelson Mandela African Institution for Science and Technology, Arusha, Tanzania, 13 – 18, July 2015 (2015).
11. African Material Science and Engineering Network, 3^rd AMSEN Workshop, The Birchwood Hotel, Johannesburg, South Africa, 27 – 29, May 2015 (2015).

Conferences / Workshops/ Schools/ Seminars attended 2000 - 2013

1. 1^st Young Scientist MSSEESA Conference of Materials Science and Solar Cell Technology, United Kenya Club, Nairobi, Kenya, 28 – 29, November 2013 (2013).
2. Tailor Made Training in Photovoltaic Technology, Technical University of Delft, Delft, The Netherlands, 11 – 23, November 2013 (2013).
3. Solar Energy for World Peace, Istanbul Lufti Kirdar Congress Centre, Instanbul, Turkey, 17^th August 2013 – 19^th August 2013 (2013).
4. The Winter School on Electronic Structure Calculation using Quantum Monte Carlo (QMC),Japanese Advanced Institute of Science and Technology (JAIST), Ishikawa, Komatsu, Japan, 18^th February 2013 – 22rd February 2013 (2013).
5. The 1^st European Physical Society Conference: Physics for Development, Brussels, Belgium, 11^th October 2012 – 12^th October 2012 (Poster presentation) (2012).
6. The Energy and Materials Research Conference, Torremolinos, Malaga, Spain, 20^th June 2012 – 22^nd June 2012 (Poster presentation) (2012).
7. The 2^nd African School on Electronic Structure Methods and Applications (ASESMA 2012), Chepkoilel University College, Eldoret, Kenya, 28^th May 2012 – 8^th June 2012 (2012).
8. Workshop on Simulations Using Quantum Espresso and Quantum Monte Carlo (using CASINO), Joint Presentation by Chepkoilel University College and Japan Advanced Institute for Science and Technology (JAIST), Chepkoilel University College, Eldoret, Kenya, 9^th – 13^th March 2012 (2012).
9. Experiences and Way Forward, 50^th Anniversary of the International Science Programme at Uppsala University, IHRENSALEN, Campus Engelska Parken, Thunbergsvagen 3H, Uppsala University, Uppsala, Sweden, 26^th September 2011 (2011).
10. Conference on OptoElectronic Devices: Their Potential for Sustainable Development, University of Nairobi, Nairobi, Kenya, 8^th – 9^th July 2010 (Oral Presentation) (2010).
11. African School on NanoScience for Solar Energy Conversion, Addis Ababa, Ethiopia, 3^rd – 7^th May 2010 (Poster presentation) (2010).
12. Conclave of Afro – Asia Young Scientists “Energy, Climate and Development” Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore, India, 11^th – 13^th February 2010 (Oral presentation) (2010).
13. The first International Conference on Solar Energy Materials Research, Belinda Ocean Resort, Dar es Salaam, Tanzania, 13^th – 15^th October, 2009 (Oral presentation).
14. Science and Technology – Europe Africa Project (ST-EAP) Workshop, Hilton Hotel, Nairobi, Kenya, 26^th – 27^th March 2009 (2009).
15. The 3^rd TWAS – ROSSA Young Scientists’ Conference, hosted by The African Academy of Sciences, Hilton Hotel, Nairobi, Kenya, 15^th – 17^th December 2008 (2008).
16. 4^th Regional Workshop in Celebration of the Scientific Revival Day of Africa, Theme: Evidence- based Advice to Policy, Panafric Hotel, Nairobi, Kenya, 27^th – 29^th June 2008 (Participant - Exhibitor) (2008).
17. 1^st National Conference and Exhibition for Dissemination of Research Results and Review of Innovations, KICC, Nairobi, Kenya, 28^th – 30^th April 2008 (Participant - Poster Presentation) (2008).
18. 17^th International Vacuum Congress (IVC-17), 13^th International Conference on Surface Sciences (ICSS-13) and International Conference on Nanoscience and Technology (ICN+T) Congress, Stockholm, Sweden, 2^nd - 6^th July 2007 (Participant - Poster Presentation) (2007).
19. 6^th EBASI International Conference on Physics and Technology for Sustainable Development in Africa, Cape Town, South Africa, 24^th – 26^th Jan 2007 (Participant - Poster Presentation) (2007).
20. International Solar Energy Society (ISES), Solar World Congress, Götenborg, Sweden, 14^th – 19^th June 2003 (Participant - Poster Presentation) (2003).
21. Workshop on Physics Education in Kenya: Trends and Challenges, Kenyatta University 13^th – 14^th September 2001 (Participant) (2001).
22. 6^th College on Thin Films Technology, University of Dar es Salaam, Tanzania, July 24^th – Aug 4^th 2000 (Participant - Oral Presentation) (2000).
23. 5^th College on Materials Science and Device Technology, University of Nairobi, Kenya 2000 (Participant) (2000).

Special Duties in Department of Physics

1. Departmental Time Table 2008 – date
2. Departmental Minutes Writing during meetings 2008 – 2017.
3. Acting Chairman in various occations.

External Examiner Appointments

1. Mkwawa University College of Education, Iringa, Tanzania, appointed for period 2017 – 2020
2. Multimedia University of Kenya, appointed for period 2014 – 2019
3. Garissa University, appointed 2014 – 2018, renewed 2018 – 2021

Community Service Participation

1. Board of Management Member for Mbitini Girls Secondary School, Kitui, Kenya
2. Board of Management Member for Kanzau Mixed Secondary School, Kitui, Kenya

Continuing Students at various level of progress

1. Benjamin Victor Odari, PhD Student, University of Nairobi, Thesis research title: Thermal Ideality Factor of Sb₂S₃ Extremely Thin Absorber Solar Cell, Research in Progress.
2. Samson Muriuki Njogu, PhD Student, Research Title: Fabrication and Characterization Studies of Doping of a Quantum Dot in Ge: TiO₂ and Ge:ZnO thin Films for Photovoltaic Applications (Co-supervisor: Prof.B.O. Aduda).
3. Shikambe Reuben Tsisambo, M.Sc Optical and Electrical Characterization of Sb₂S₃/CdNiS Thin Films for Photovoltaic Application (Co-supervisors: Dr. M. Munji,). Kenyatta University.
4. Robert Onchuru Magare, M.Sc Characterization and Fabrication of TiO₂/In(OH)_xS_y/SnS Solar Cell (Co-supervisors: Dr. M. Munji,). Kenyatta University.
5. Josephat Mongusu, M.Sc Student, University of Nairobi, Thesis Title: Fabrication and Characterization of Nb:TiO₂ for CO₂ Gas Sensing Application (Co-supervisor: Prof. F. Nyongesa and Dr. A. Ogacho).
6. Jacinta Okwako M.Sc Student, University of Nairobi, Thesis Title: Optical and Electrical Characterizatin of Cu₂ZnSnS₄ Deposited by SILAR Technique (Co-supervisor: Prof. F. Nyongesa and Dr. A. Ogacho).
7.  Research in progress
8. Sheilla Bisach M.Sc Student, University of Nairobi, Thesis Title: Fabrication and Characterization of Nb:TiO₂ for CO₂ Gas Sensing Application (Co-supervisor: Prof. B.O. Aduda and Prof. F. Nyongesa)

(Last updated: May 2, 2021)