Dr. Raphael L Nyenge

Lecturer &amp; Chairperson, Department of Physics

Academic Qualifications

L. Nyenge, H. C. Swart, O. M. Ntwaeaborwa, Auger electron spectroscopy study and depth profile analyses of the CaS:Eu 2+ pulsed laser deposited thin luminescent films Appl. Phys. A (2016) 122:621 DOI 10.1007/s00339-016-0135-3.

Simon N. Ogugua, Raphael L. Nyenge, Phillip T. Sechogela, Hendrik C. Swart, Odireleng M. Ntwaeaborwa, Influence of deposition atmosphere and substrate temperature on the structure, morphology, and photoluminescence of pulsed laser deposited La0.5Gd1.5SiO5:Dy3 + , 34 021520 (2016); doi: 10.1116/1.4942502.

L. Noto, D. Poelman, V.R. Orante-Barrón, H.C. Swart, L.E. Mathevula, R. Nyenge, M. Chithambof, B.M. Mothudia, M.S. Dhlaminia, Photoluminescence and thermoluminescence properties of BaGa 2 O 4 , Physica B 535 (2018) 268–271.

Musila N., Munji M., Simiyu J., Masika E. and Nyenge R., (2018). Optical Properties and Analysis of OJL Model’s Electronic inter-band Transition Parameters of TiO 2 Films, Traektoriâ Nauki = Path of Science, 4(7): 3001-3012 https://pathofscience.org/index.php/ps/article/view/528

Musila N ., Munji M., Simiyu J., Masika E. and Nyenge R., (2018). Effect of TiO 2 Compact Layer on DSSC Performance, Traektoriâ Nauki = Path of Science, 4(9): 5001-5008 https://pathofscience.org/index.php/ps/article/view/547

Musila N., Munji M., Simiyu J., Masika E., Nyenge R. and Kineene M., (2018).Characteristics of TiO 2 Compact Layer prepared for DSSC application, Traektoriâ Nauki =Path of Science, 4(10): 3006-3012 https://pathofscience.org/index.php/ps/article/view/557

Kasau, M., Nyenge, L., & Munji, K. (2022). Analysis of energy potential for grid-tied solar energy systems for medium industrial applications. African Journal of Pure and Applied Sciences, 3 (2), 237-246. https://doi.org/10.33886/ajpas.v3i2.295

Mutinda, M., Munji, K., & Nyenge, L. (2023). Implementation of a Wide Band and Low Noise Signal Generator Based on Phase-Locked Loop. African Journal of Pure and Applied Sciences, 4(1), 50-59. https://doi.org/10.33886/ajpas.v4i1.371

Maklewa Agoundedemba, Mazabalo Baneto, Raphael Nyenge, Nicholas Musila , Kicoun Jean-Yves N'Zi Toure (2023). Improving FTO/ZnO/In2S3/CuInS2/Mo solar cell efficiency by optimizing thickness and carrier concentrations of ZnO, In2S3 and CuInS2 thin films using Silvaco-Atlas Software. International Journal of Renewable Energy Development, 12 (6), 1131-1140

Maklewa Agoundedemba, Chang Ki Kim, Hyun-Goo Kim, Raphael Nyenge Nicholas Musila (2025). Modelling and optimization of microgrid with combined genetic algorithm and model predictive control of PV/Wind/FC/battery energy systems. Energy Reports 13 (2025) 238–255

Refereed Journal Articles

L. Nyenge, H. C. Swart, O. M. Ntwaeaborwa, Auger electron spectroscopy study and depth profile analyses of the CaS:Eu 2+ pulsed laser deposited thin luminescent films Appl. Phys. A (2016) 122:621 DOI 10.1007/s00339-016-0135-3.
Simon N. Ogugua, Raphael L. Nyenge, Phillip T. Sechogela, Hendrik C. Swart, Odireleng M. Ntwaeaborwa, Influence of deposition atmosphere and substrate temperature on the structure, morphology, and photoluminescence of pulsed laser deposited La0.5Gd1.5SiO5:Dy3 + , 34 021520 (2016); doi: 10.1116/1.4942502.
L. Noto, D. Poelman, V.R. Orante-Barrón, H.C. Swart, L.E. Mathevula, R. Nyenge, M. Chithambof, B.M. Mothudia, M.S. Dhlaminia, Photoluminescence and thermoluminescence properties of BaGa 2 O 4 , Physica B 535 (2018) 268–271.
Musila N., Munji M., Simiyu J., Masika E. and Nyenge R., (2018). Optical Properties and Analysis of OJL Model’s Electronic inter-band Transition Parameters of TiO 2 Films, Traektoriâ Nauki = Path of Science, 4(7): 3001-3012 https://pathofscience.org/index.php/ps/article/view/528
Musila N ., Munji M., Simiyu J., Masika E. and Nyenge R., (2018). Effect of TiO 2 Compact Layer on DSSC Performance, Traektoriâ Nauki = Path of Science, 4(9): 5001-5008 https://pathofscience.org/index.php/ps/article/view/547
Musila N., Munji M., Simiyu J., Masika E., Nyenge R. and Kineene M., (2018).Characteristics of TiO 2 Compact Layer prepared for DSSC application, Traektoriâ Nauki =Path of Science, 4(10): 3006-3012 https://pathofscience.org/index.php/ps/article/view/557
Kasau, M., Nyenge, L., & Munji, K. (2022). Analysis of energy potential for grid-tied solar energy systems for medium industrial applications. African Journal of Pure and Applied Sciences, 3 (2), 237-246. https://doi.org/10.33886/ajpas.v3i2.295
Mutinda, M., Munji, K., & Nyenge, L. (2023). Implementation of a Wide Band and Low Noise Signal Generator Based on Phase-Locked Loop. African Journal of Pure and Applied Sciences, 4(1), 50-59. https://doi.org/10.33886/ajpas.v4i1.371
Maklewa Agoundedemba, Mazabalo Baneto, Raphael Nyenge, Nicholas Musila , Kicoun Jean-Yves N'Zi Toure (2023). Improving FTO/ZnO/In2S3/CuInS2/Mo solar cell efficiency by optimizing thickness and carrier concentrations of ZnO, In2S3 and CuInS2 thin films using Silvaco-Atlas Software. International Journal of Renewable Energy Development, 12 (6), 1131-1140
Maklewa Agoundedemba, Chang Ki Kim, Hyun-Goo Kim, Raphael Nyenge Nicholas Musila (2025). Modelling and optimization of microgrid with combined genetic algorithm and model predictive control of PV/Wind/FC/battery energy systems. Energy Reports 13 (2025) 238–255

Conference Papers

R. L. Nyenge, in attendance, the 58th annual conference of South African Institute of Physics (SAIP), 8-12th July, 2013, Richards Bay Campus, University of Zululand.
R. L. Nyenge, P.T. Sechogela, H. C. Swart, O. M. Ntwaeaborwa, “The influence of laser wavelength on the structure, morphology and photoluminescence properties of pulsed laser deposited CaS:Eu2+ thin films”, ALC femto second Laser Workshop, 18-20 NOV 2014, University of Stellenbosch, South Africa.
R. L. Nyenge, S.K.K. Shaat, L. L. Noto, P. P. Mokoena,, H.C. Swart, O.M. Ntwaeaborwa, “TOF SIMS Analysis, structure and photoluminescence properties of pulsed laser deposited CaS:Eu2+ thin films”, 6th South African Conference on Photonic Materials, 5 - 7 May 2015, Mabula Game Lodge, Limpompo, South Africa.
R.L. Nyenge, H. C. Swart, O. M. Ntwaeborwa, “The influence of the number of pulses and post annealing on the morphology and photoluminescence properties of CaS:Eu2+ pulsed laser deposition thin films”, 60th Annual Conference of the South African Institute of Physics, 29 June – 3 July 2015, Port Elizabeth, South Africa.
R.L. Nyenge, H.C. Swart, O.M. Ntwaeaborwa, “Cathodoluminescent and Photoluminescent Properties of Pulsed Laser Deposited Thin Film Phosphors”, International Conference on Laser Ablation 31 August - 4 September 2015, Cairns, Queensland, Australia.
Ochoo Lawrence, Nyenge Raphael, Electro-magnetic Field Technology as Profiler for Cancer Diagnosis and Treatment Monitoring, Masinde Muliro University of Science and Technology, 13 th Multidisciplinary International conference, 19 th -21 st June, 2019.
Ochoo Lawrence, Nyenge Raphael, Electro-magnetic Field Technology as Profiler for Cancer Diagnosis and Treatment Monitoring, Kenyatta University Biennial Research and Innovation conference, 23 rd -25 th October, 2019.