R.O. Ocaya

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Fahrettin YakuphanogluFırat ÜniversitesiVerified email at firat.edu.tr
Ahmed Al-ghamdiDepartment of Physics, Faculty of Science, King Abdulaziz University, Saudi ArabiaVerified email at kau.edu.sa
Aysegul DereFirat UniversityVerified email at firat.edu.tr
Abdullah G. Al-sehemiProfessor Organic and computational chemistry, King Khalid UniversityVerified email at kku.edu.sa
Dr Kamohelo George TshabalalaSenior Lecturer, University of the Free State Qwa QwaVerified email at ufs.ac.za
Murat SoyluVerified email at bingol.edu.tr
Ram K. GuptaPittsburg State UniversityVerified email at pittstate.edu
Kwadwo Mensah-Darkwa, PhD, MGhIEAssociate Professor, Materials Engineering, KNUSTVerified email at aggies.ncat.edu
Francis Birhanu DejeneProfessor of Physics and Material ScienceVerified email at wsu.ac.za
aslam farooqProfessor of Physics, King Saud UniversityVerified email at ksu.edu.sa
Abdelkrim MekkiKing Fahd University of Petroleum & MineralsVerified email at kfupm.edu.sa
Adriaan Stephanus LuytAdjunct Research Professor, Center for Advanced Materials, Qatar UniversityVerified email at qu.edu.qa
Mmantsae DialeUniversity of PretoriaVerified email at up.ac.za
Armando Reyes RojasCentro de Investigacion en Materiales Avanzados.Verified email at cimav.edu.mx
Hakan UstaProfessor at Abdullah Gül University, Kayseri, TurkeyVerified email at agu.edu.tr
Mehmet OzdemirAbdullah Gül ÜniversitesiVerified email at agu.edu.tr
Resul OZDEMIRAssistant Professor at Eskişehir Osmangazi UniversityVerified email at ogu.edu.tr
Martin ChanzaAssociate Professor, Departmet of Statistics and Operations Resesrch, North-West UniversityVerified email at nwu.ac.za
Kevin LobbAssociate Professor, Rhodes UniversityVerified email at ru.ac.za
Tanmoy ChakrabortyRegistrar, SVKM's Narsee monjee Institute of Management Studies (NMIMS), MumbaiVerified email at nmims.edu

R.O. Ocaya

Associate Professor at UFS

Verified email at ufs.ac.za

Nanoscience and Nanotechnology


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Effect of annealing temperature on structural, morphology and optical properties of ZnO nano-needles prepared by zinc-air cell system method TD Malevu, RO Ocaya International Journal of Electrochemical Science 10 (2), 1752-1761, 2015	80	2015
New photodiodes based graphene-organic semiconductor hybrid materials A Mekki, RO Ocaya, A Dere, AA Al-Ghamdi, K Harrabi, F Yakuphanoglu Synthetic Metals 213, 47-56, 2016	62	2016
Organic semiconductor photosensors RO Ocaya, AG Al-Sehemi, A Al-Ghamdi, F El-Tantawy, F Yakuphanoglu Journal of Alloys and Compounds 702, 520-530, 2017	60	2017
Electrical, optical and structural properties of pure and gold-coated VO2 thin films on quartz substrate FB Dejene, RO Ocaya Current Applied Physics 10 (2), 508-512, 2010	52	2010
A review of the impact of zinc oxide nanostructure morphology on perovskite solar cell performance M Manabeng, BS Mwankemwa, RO Ocaya, TE Motaung, TD Malevu Processes 10 (9), 1803, 2022	47	2022
Ruthenium (II) complex based photodiode for organic electronic applications A Tataroglu, R Ocaya, A Dere, O Dayan, Z Serbetci, AG Al-Sehemi, ... Journal of Electronic Materials 47, 828-833, 2018	47	2018
Organic photodetector with coumarin-adjustable photocurrent RO Ocaya, A Al-Ghamdi, K Mensah-Darkwa, RK Gupta, W Farooq, ... Synthetic Metals 213, 65-72, 2016	46	2016
Ocaya–Yakuphanoğlu method for series resistance extraction and compensation of Schottky diode I–V characteristics RO Ocaya, F Yakuphanoğlu Measurement 186, 110105, 2021	34	2021
Effect of annealing temperature on nano-crystalline TiO2 for solar cell applications TD Malevu, BS Mwankemwa, SV Motloung, KG Tshabalala, RO Ocaya Physica E: Low-dimensional Systems and Nanostructures 106, 127-132, 2019	34	2019
An experiment to profile the voltage, current and temperature behaviour of a P–N diode RO Ocaya European journal of physics 27 (3), 625, 2006	27	2006
Phase transformations of high-purity PbI2 nanoparticles synthesized from lead-acid accumulator anodes TD Malevu, RO Ocaya, KG Tshabalala Physica B: Condensed Matter 496, 69-73, 2016	21	2016
Analysis of photovoltaic behavior of Si-based junctions containing novel graphene oxide/nickel (II) phthalocyanine composite films M Soylu, R Ocaya, H Tuncer, AA Al-Ghamdi, A Dere, DC Sari, ... Microelectronic Engineering 154, 53-61, 2016	19	2016
A current–voltage–temperature method for fast extraction of schottky diode static parameters RO Ocaya Measurement 49, 246-255, 2014	19	2014
Dye based photodiodes for solar energy applications K Mensah-Darkwa, R Ocaya, A Dere, AG Al-Sehemi, AA Al-Ghamdi, ... Applied Physics A 123, 1-13, 2017	18	2017
Analysis of photoconductive mechanisms of organic-on-inorganic photodiodes RO Ocaya, A Dere, AG Al-Sehemi, AA Al-Ghamdi, M Soylu, ... Physica E: Low-dimensional Systems and Nanostructures 93, 284-290, 2017	18	2017
Thermal sensor based zinc oxide diode for low temperature applications RO Ocaya, A Al-Ghamdi, F El-Tantawy, WA Farooq, F Yakuphanoglu Journal of Alloys and Compounds 674, 277-288, 2016	16	2016
Synthesis and degradation kinetics of a novel polyester containing bithiazole rings W He, YY Jiang, AS Luyt, RO Ocaya, TJ Ge Thermochimica acta 525 (1-2), 9-15, 2011	16	2011
Synthesis of ZnO nanoparticles using a zinc-air cell and investigation of the effect of electrolyte concentration TD Malevu, RO Ocaya International Journal of Electrochemical Science 9 (12), 8011-8023, 2014	15	2014
A framework for collaborative remote experimentation for a physical laboratory using a low cost embedded web server RO Ocaya Journal of Network and Computer Applications 34 (4), 1408-1415, 2011	15	2011
Optoelectronic enhancement of ZnO/p-Si Schottky barrier photodiodes by (Sn, Ti) co-doping K Mensah-Darkwa, RO Ocaya, AG Al-Sehemi, D Yeboah, A Dere, ... Physica B: Condensed Matter 667, 415155, 2023	13	2023

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