Prof. Azubuike Josiah Ekpunobi

Prof. Azubuike Josiah Ekpunobi is a PROFESSOR in PHYSICS AND INDUSTRIAL PHYSICS Department, Faculty Of Physical Sciences in Nnamdi Azikiwe University

Staff Profile

Ekpunobi Azubike Josiah is a Professor of Solid State Physics in the Faculty of Physical Sciences, Nnamdi Azikiwe University, Awka. He holds a Ph.D from University of Nigeria, Nsukka(1996), and DICTP from International Centre for Theoretical Physics, Italy. He was HoD(2003 – 2005, 2005 – 2008), Dean of Physical Sciences (2016 – 2018) and currently the Director of Research and Innovation, Nnamdi Azikiwe University, Awka. He is a Fellow of the Nigerian Institute of Physics(NIP), Solar Energy Society of Nigeria (SESN) and Renewable Alternative Energy Society(RAES). His research is on semiconductor Physics and currently working on Spintronic materials for computer assessories. He

Personal Information

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Address:	Physics And Industrial Physics, Faculty Of Physical Sciences, Nnamdi Azikiwe University, Awka.
Faculty/Unit:	FACULTY OF PHYSICAL SCIENCES
Department/Sub-Unit:	PHYSICS AND INDUSTRIAL PHYSICS

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Interest Areas

Materials Physics Solar Energy Solid State Physics

Academic Qualifications

	Degrees / Basic Certificates
1	Fitst School Leaving Certificate. (FSLC, September, 1980) January, 1968 to December, 1974

Creative Output

	Journal Articles
1	Emmanuel O. Okechukwu., Imosobomeh L. Ikhioya, Azubuike J. Ekpunobi, A. C. O. Azubogu, E. N. Onuigbo, Overcomer Anusiuba, Adline Nwodo, Diemiruaye M. Jeroh, Chukwudi B. Muomeliri, Chiedozie E. Okafor, Lynda Ozobialu, Chiamaka Onu, Uche E. Ekpunobi, Nonso L. Okoli & E. U. Ogbodo. (2026, January), "Investigating the influence of doping concentrations on the properties of titanium-doped magnesium sulfide (ti:mgs) thin films, for spintronic applications", Indian Journal of Physics, Vol. 100, pp 1785 - 1796Springer Nature
2	Chika A. Okonkwo1, Chizoba C. Ele2, Promise O. Okeke3, Azubike J. Ekpunobi4. (2026, August), "Binder-Free Carbon Electrode Derived from Decocted Amino Acids for High-Performance Supercapacitors", *Unknown Journal or Publisher*
3	Emmanuel Chiedozie Okafor, Azubike Josiah Ekpunobi, Donald N. Okoli, Diemiruaye Mimi Jeroh, Okechukwu Emmanuel Odikpo, Chukwudi Muomeliri, Overcomer Anusiobi, Adline Nwaodo, Augustine Azubogu, Lynda Adaora Ozobialu, Evangeline Njideka Onuigbo, Chiamaka Onu, Augustine Nwori, Nonso Livinus Okoli. (2025, January), "Investigation of Voltage Modulation on the Optical and Structural Properties of Electrodeposited Zinc Sulfide (Zns) Thin Films", *Unknown Journal or Publisher*
4	OZOBIALU LYNDA ADAORA a* , EKPUNOBI AZUBUIKE JOSIAH a , OKOLI DONALD NNANYERE a , JEROH DIEMIRUAYE MIMI a , OKECHUKWU EMMA ODIKPO a , OVERCOMER ANUSIUBA b , ADLINE NWODO c , NONSO LIVINUS OKOLI d , AZUBOGU, AUGUSTINE C. O e , OKAFOR CHIEDOZIE a , MUOMELIRI CHUKWUDI BENJAMIN a , ONUIGBO E. f , ONU, CHIAMAKA PEACE a and UCHE EUNICE EKPUNOBI. (2025, May), "The Impact of Fe Doping on the Optical and Structural Properties of ZnFeS Fabricated by Electrodeposition", *Unknown Journal or Publisher*
5	Chiamaka Peace Onu a, Azubuike Josiah Ekpunobi a , Adaora Lynda Ozobialu a , Chiedozie Emmanuel Okafor a , Diemiruaye Mimi Jeroh a , Chukwudi Benjamin Muomeliri a , Okechukwu Emmanuel Odikpo a , Augustine Chukwuemeka Azubogu b , Evangeline Njideka Onuigbo c , Overcomer Ifeanyi Anusiuba d , Adline Nwodo e , Nonso Livinus Okoli f and Uche Eunice Ekpunobi. (2025, May), "Morphological, elemental and optical, properties of sphalerite nanoparticle (ZnS) doped with neem leaf extract", Unknown Journal or Publisher*
6	Ifeanyi Daniel Onwuteaka a , Azubuike Josiah Ekpunobi a and Chiamaka Peace Onu. (2025, February), "Optical and Structural Properties of Rutile Nanoparticles Prepared Via Ball Milling", *Unknown Journal or Publisher*
7	Chiedozie Emmanuel Okafor, 2 Azubike Josiah Ekpunobi, 3 Donald Nnanyere Okoli, 4 Jeroh Diemiruaye Mimi, 5 Okechukwu Emma Odikpo, 6 Chukwudi Benjamin Muomeliri, 7 Overcomer Anusiobi, 8 Adline Nwaodo, 9 Augustine Azubogu, 10 Lynda Adaora Ozobialu, 11 Evangeline Onuigbo, 12 Chiamaka Peace Onu, 13 Okoli Nonso Livinus, 14 Nwori Augustine Nwode. (2025, May), "Assessing the Optical Features of Electrodeposited Ti-Doped ZnSe Thin Films for Solar Cell Window Layer Applications", *Unknown Journal or Publisher*
8	Azubuike Josiah Ekpunobi1 , Chiamaka Peace Onu2* , Augustine Chukwuemeka Azubogu3 , Evangeline Njideka Onuigbo4 , Diemiruaye Mimi Jeroh5 , Overcomer Ifeanyi Anusiuba6 , Adline Nwodo7 , Emmanuel Utochukwu Ogbodo8 , Okechukwu Emmanuel Odikpo9 , Chiedozie Emmanuel Okafor10 , Adaora Lynda Ozobialu11 , Nonso Livinus Okoli12 , Chijioke Elijah Onu13 , Uche Eunice Ekpunobi14 , Chukwudi Benjamin Muomeliri. (2025, June), "Production and characterization of Zinc Iron Sulphide (ZnFeS) nanoparticles sourced locally from Nigeria prepared by high energy ball-milling", *Unknown Journal or Publisher*
9	Emmanuel O. Okechukwu, Imosobomeh L. Ikhioya, & Azubuike J. Ekpunobi. (2024, June), "Effect of precursor pH on the electrochemically synthesised barium titanium sulphide (BaTiS) material for photovoltaic application", Materials research innovations, Vol. 29, (Issue 2), pp 75 - 84
10	Benjamin1* , Ekpunobi Azubike Josiah2 , Okoli Donald Nnanyere3 , Azubogu Augustine C4 , Nwori Augustine Nwode5 , Jeroh Diemiruyare Mimi6 , Anusiuba Overcomer Ifeanyi Alex7 , Okafor Chiedozie Emmanuel8 , Lynda Ozobialu9 , Adline Nwaodo. (2024, September), "Effects of Deposition Periods on the Optical and Structural Properties of Electrochemically Deposited Nickel-Doped Zinc Oxide Thin Films", *Unknown Journal or Publisher*
11	Azubike Josiah Ekpunobi, Emmanuel Odikpo Okechukwu, A.C.O. Azubogu, Evangeline Onuigbo, Diemiruaye Mimi Jeroh, Overcomer Anusiuba, Ngozi Nwodo, Emmanuel Utochukwu Ogbodo, Chiamaka Onu, Emmanuel Chiedozie Okafor, Lynda Adaora Ozobialu, Nonso Okoli, Chijioke E. Onu, Uche Eunice Ekpunobi. (2024, September), "Doping Effects on the Optical, Electrical, Structural, Morphological, Elemental Composition, and Magnetic Properties of Electrodeposited Ti-Doped Cu2s Thin Films", *Unknown Journal or Publisher*
12	Chiamaka Peace Onu a, Azubuike Josiah Ekpunobi a , Adaora Lynda Ozobialu a , Chiedozie Emmanuel Okafor a , Diemiruaye Mimi Jeroh a , Chukwudi Benjamin Muomeliri a and Chijioke Elijah Onu. (2024, December), "Structural, Optical, Magnetic and Electrical Properties of Zinc Oxide Doped with Iron: A Review", Unknown Journal or Publisher*
13	Ngozi loveth Arinze-Umobi a* , Nwokoye Anthony a , Azubike Josiah Ekpunobi a and Okafor Chiedozie Emmanuel. (2024, December), "Performance Analysis and Characterization of Natural Dyesensitized Solar Cells (DSSCs) of Titanium Oxide (TiO2) Thin Film", *Unknown Journal or Publisher*
14	Chukwudi Benjamin Muomeliri a* , Azubuike Josiah Ekpunobi a , Donald Nnanyere Okoli a , Chidozie Okafor a , Jeroh Diemiruaye Mimi a , Okechukwu Emma Odikpo a , Overcomer Anusiobi a , Adline Nwaodo a , A. Azubogu a , Lynda Ozobialu a , Onuigbo E a , Onu Chiamaka a , Ikechukwu Chibuogwu a , Augustine Nwode Nwori b and Nonso Livinus Okoli. (2024, August), "Influence of Ti Doping on the Optical and Structural Properties of ZnTiO Thin Films Deposited by Electrodeposition Technique", *Unknown Journal or Publisher*
15	Muomeliri Chukwudi Benjamin Ekpunobi Azubike Josiah Okoli Donald Nnamdi Azubogu Augustine Nwori Augustine Nwode Orrh Diemiruya Ti Mimi Anusiu Overcomer Ifeanyi Alex Okafor Chiedozie Emmanuel Lynda Ozobialu Adline Nwaodo. (2024, September), "Effects of Deposition Periods on the Optical and Structural Properties of Electrochemically Deposited Nickel-Doped Zinc Oxide Thin Films", *Unknown Journal or Publisher*
16	Kufre Imoh Udofia1, Imosobomeh Lucky Ikhioya2, 3* , Donald Nnanyere Okoli1, Azubike Josiah Ekpunobi1. (2023, June), "Impact of Solution PH on the Physical Properties of Rare Earth Metal Doped PbSe Chalcogenide Material for Photovoltaic Application", *Unknown Journal or Publisher*
17	Augustine Sandra , Azubike Josiah Ekpunobi , Diemiruaye Mimi Jeroh. (2023, February), "Electrodeposition of cobalt oxide thin films for potential applications", *Unknown Journal or Publisher*
18	Ifunanya Peace Muogbo 1 , Azubike Josiah Ekpunobi 2 , Nonso Livinus Okoli 3. (2023, December), "Exploring the optical, structural, morphological and compositional properties of electrosynthesized FeSe/CrSe superlattice thin films", *Unknown Journal or Publisher*
19	DM Jeroh, AJ Ekpunobi, DN Okoli -. (2022, June), "Optical and structural characterization of CdSe: Eu films at different volumes of europium concentration", *Unknown Journal or Publisher*
20	L. A. Ozobialu, A. J. Ekpunobi, D. M. Jeroh. (2022, December), "Effect of Time on the Optical and Structural Properties of Tin Oxide Thin Films as an Electron Transport Layer for Perovskite Solar Cell.", *Unknown Journal or Publisher*
21	I.L. Ikhioya and A.J. Ekpunobi. (2015, March), "Electrical and Structural Properties of ZnSe Thin Films by Electrodeposition Technique", *Unknown Journal or Publisher*
22	I. L. Ikhioya1 and A. J. Ekpunobi2. (2014, November), "Effect of deposition period and pH on electrodeposition technique of zinc selenide thin films", *Unknown Journal or Publisher*, Vol. 28, (Issue 2), pp 281 - 288
23	Emeka K. Oparaku, Gabriel E. Orizu, Assumpta C. Nwanya, Fabian I. Ezema, Azubuike J. Ekpunobi. (2006, July), "Ternary Metal-Organic Framework/Graphene Oxide/Epoxy Nanocomposite Coatings for Corrosion Protection: A Review", Materials and Corrosion
24	Ekpunobi A. J.. (2005, November), "Reformulated tight binding calculation for band discontinuity at CdTe/HgxCd1-xTe heterointerfaces and their Type I–Type III transitions.", Materials Science and Engineering B,, Vol. 117, pp 1 - 4
25	Ekpunobi A. J.. (2005, November), "Variation of band offsets with dielectric constants at AlxGa1–xInP/GaAs interfaces.", Nonlinear Optics, Quantum Optics,, Vol. 33, pp 143 - 147
26	Ekpunobi A. J.. (2005, July), "Temperature dependence of band offsets at the porous–silicon/crystalline–silicon heterojunction.", Nonlinear Optics, Quantum Optics,, Vol. 33, pp 305 - 309
27	Ekpunobi A. J.. (2005, April), "Magnetic tuning of band offset in ZnTe/Zn1-xMnxTe superlattices.", Nonlinear Optics, Quantum Optics,, Vol. 33, pp 195 - 202
28	Ekpunobi A. J.. (2005, October), "Curvature of band overlap in InAs/GaSb Type II superlattices", Materials Science in Semiconductor Processing,, Vol. 8, pp 463 - 466
29	Ekpunobi A. J.. (2005, August), "Influence of interfacial reactivity on band offsets in ZnSe/GaAs superlattices", Materials Science in Semiconductor Processing,, Vol. 8, pp 472 - 475
30	Ekpunobi A. J.. (2005, August), "Effects of tensile strain on band offsets in InGaAsP/InP quantum wells.", Nonlinear Optics, Quantum Optics,, Vol. 35, pp 1 - 7
31	Ekpunobi A. J.. (2005, June), "Band offsets in heterostructures by spin splittings", Solid State Electronics, Vol. 49, pp 667–669.
32	Eya, D. D. O., Ekpunobi, A. J., & Okeke, C. E. (2005, June), "Optical properties and applications of lead oxide thin film prepared by chemical bath deposition technique.", Academic Open Internet Journal,, Vol. 14, (Issue 5), pp 1 - 13
33	Eya, D. D. O., Ekpunobi, A. J., & Okeke, C. E.. (2005, August), "Structural and optical properties and applications of zinc oxide thin films prepared by chemical bath deposition technique", Pacific Journal of Science and Technology, Vol. 6, (Issue 1), pp 16–22
34	Eya, D. D. O., Ekpunobi, A. J., & Okeke, C. E.. (2005, November), "Optical properties of cuprous oxide thin film prepared by chemical bath deposition technique.", Pacific Journal of Science and Technology, Vol. 6, (Issue 2), pp 98 - 104
35	Ekpunobi A. J.. (2004, September), "Control of band discontinuity at III–V semiconductor interface by Si intralayers.", Materials Science and Engineering B,, Vol. 107, pp 241–243
36	Ekpunobi A. J.. (2004, November), "Calculation of band offset in chalcopyrite system.", Solid State Communications, Vol. 131, pp 725–727
37	Ekpunobi A. J.. (2004, June), "Pressure dependence of band offsets in InAlAs/InP heterostructure.", Nonlinear Optics, Quantum Optics,, Vol. 30, pp 285 - 291
38	Ekpunobi A.J. and Animalu A. O. E. (2002, November), "Band offsets and properties of AlGaAs/GaAs and AlGaN/GaN material systems", Superlattices and Microstructures, Vol. 31, (Issue 5), pp 247–252
39	Ekpunobi A. J. and Animalu A. O. E. (2002, November), "Theory of valence and conduction band offsets in Si/Si1-yCy heterostructures.", Superlattices and Microstructures, Vol. 31, (Issue 5), pp 253–256.
40	2. Ekpunobi A.J. and A.O.E. Animalu. (2001, June), "Band Offsets and Properties of Si1-xGex/Si Material Systems”", Superlattices and Microstructures, Vol. 29, (Issue 1), pp 83 – 89
41	Ekpunobi A.J.. (2001, November), "“Alloy Effects in Band Offset Calculations at CdTe/Cd1-xMnx Te Interface”", Non-linear optics, Vol. 28, pp 129 – 137
42	Ekpunobi A.J.. (2001, November), "Type I–Type II band alignment transition in InGaAs/InP heterostructures.", Non-linear optics, Vol. 28, pp 257–261
43	Ekpunobi A.J. and Animalu A. O. E. (2001, July), "Band offsets and properties of Si1-xGex/Si material systems", Superlattices and Microstructures, Vol. 29, (Issue 1), pp 83–89
44	1. Ekpunobi A.J., Okeke C.E. and A.O.E. Animalu. (1999, April), "“Reformulation of Tight Binding Theory of Band Offsets in Semiconductor Heterojunctions", Physica B, Vol. 271, pp 364 – 368