PROF. ROSE UZOMA OSUJI, FSESN (Ph.D., M.Sc., B.Sc. [University of Nigeria])
An astute academician, with great poise in research who has and is still replicating herself in the academic arena. An intellectual giant who has successfully mentored and produced many students at the graduate and postgraduate levels, some of who are now Professors in their own rights and have become influential researchers across the globe.
JOB DESCRIPTION
- Teaching/Research and Administration
Research Interest
Thin Film Photovoltaics, Growth and Characterization of Crystals, Nanomaterials and their Applications, Materials Science, Solar Energy, and Climate change.
Professional Position/Career Progression
From: Department of Physics and Astronomy
University of Nigeria, Nsukka
Enugu State, Nigeria
University of Nigeria, Nsukka (UNN)
Enugu State, Nigeria
Department of Physics and Astronomy
UNN
National Centre for Energy Research and Development
UNN
Innovation Centre
Office of the Vice Chancellor
UNN
Department of Physics and Astronomy
UNN
Energy Research Centre/Physics and Astronomy Department
UNN
Energy Research Centre/Physics and Astronomy Department
UNN
Energy Research Centre/Physics and Astronomy Department
UNN
Energy Research Centre/Physics and Astronomy Department
UNN
Energy Research Centre/Physics and Astronomy Department
UNN
Education
University of Nigeria, Nsukka
Enugu State, Nigeria
University of Nigeria, Nsukka
Enugu State, Nigeria
University of Nigeria, Nsukka
Enugu State, Nigeria
LEARNED SOCIETY ACTIVITIES
Served in National Executive Committee as:
- 1st Vice President 2010 – 2012
- National Treasurer 2003 – 2010
- National Asst. Sec 2001 – 2003
Served in the National Executive Council as Assistant Secretary, 2004 – 2008
Trieste, Italy
APPOINTMENTS/AWARDS/FELLOWSHIPS/RESEARCH GRANTS RECEIVED
1. Appointed Consultant to the University of Nigeria Consultancy Services Limited, October 2017 till date.
2. Grant for Synthesis of improved perovskite absorber and the hole- conductors for photovoltaic applications NRF TETFUND (N20M) Project Code: TETF/DESS/UNN/NSUKKA/STI/VOL.I/B4.33, Nov 2017-Nov 2019.
3. Homo Physicae award of honour by Chukwuemeka Odimegwu University (COOU), Uli, Anambra State, 2014/2015.
4. Appointed Senior Fellow of the UNESCO – AFRICA Chair in Nanosciences & Nanotechnology, Pretoria – Republic of South Africa, 2013 – date
5. UNN Nano Research Group-Oilserv Collaborative Research: The Application of Nanotechnology to Energy, Health and Environment of the Nigerian Content Development and Monitoring Board (NCDMB) (N20M). NCDMB is a government establishment saddled with the responsibility of ensuring that Oil Companies comply with the Local Content Act by enhancing indigenous capabilities in the country.
6. Grant by ‘US Army Research Laboratory – Broad Agency Announcement (BAA) ($15,000) from September 2012-September 2013 for research on Dye Sensitized Solar Cell with Natural Gel Polymer Electrolyte.
7. Grant for research on ‘‘Electrochromic Devices (ECD) With Ionic Conductive Membranes Based On Natural Macromolecules’’ by US Army Research Laboratory – Broad Agency Announcement (BAA) ($15,000) from September 2012 – September 2013.
8. Principal Researcher: PROJECT TITLE: Synthesis and characterization of Nanocrystalline Thin Films, 2008 -2009, University of Nigeria, Nsukka Senate Research grant award ₦900,000.00.
9. Appointed Senior Associate of the Abdus Salam International Centre for Theoretical Physics (as-ICTP), Trieste, Italy for the period 2001 – 2006.
10. Appointed Fellow, Solar Energy Society of Nigeria, SESN, December, 2005.
11. a. Vice-Chancellor’s Postgraduate Prize, 1994 as the second best PhD graduate in the Postgraduate School for the year 1994.
b. Vice-Chancellor’s Faculty Postgraduate Prize, 1994 as the best graduating Postgraduate student in the Faculty of Physical Sciences for the 1993/94 session.
12. Third World Academy of Science (TWAS), Trieste, Italy Fellowship appointment for the period- 2010 to 2013 for sponsored Research Visits to iThemba LABS, Somerset West, South Africa.
13. Appointed Junior Associate of the ICTP, Trieste, Italy, 1988 to 1991.
14. Given TWAS Research Grant of $5,000.00 for research in Physics in 1988.
National/International Workshops/Summer Schools Attended
Workshop on thin film manufacturing technology organized by the National Agency for Science and Engineering Infrastructure (NASENI), Abuja, Nigeria.
Conferences attended with papers read
1. African International Conference/Workshop on Applications of Nanotechnology to Energy, Health and Environment held at the University of Nigeria, Nsukka 23 – 29 March 2014 and organized by the Nano Research Group, UNN in collaboration with Energy Materials, Materials Science and Manufacturing, CSIR Pretoria, South Africa.
2. The 7th International Conference of The African Material Research Society (A-MRS) held at African Union Building, Addis Ababa, Ethiopia. (7 – 13 December 2013).
3. The 6th International Conference of The African Material Research Society (A-MRS) held at Victoria Falls Hotel, Zimbabwe. (12 – 18 December 2011) Papers Presented:
- i. Synthesis and Characterization of ITO/CdS/CuS/, ITO/CdS/Sb2S3 and ITO/CdS/Tl2S Multilayers for Photovoltaic Application.
- ii. Synthesis and Characterization of NiO-CoO Thin Films by Chemical Methods.
4. Vice President LOC, Nigerian Material Congress NIMACON 2010, Enugu, Nigeria, November 22-28, 2010, Paper read, “Synthesis and Characterization Of ITO/CdS/CuS/, ITO/CdS/Sb2S3 AND ITO/CdS/Tl2S Multilayers for Photovoltaic Application.”
5. Attended the International Seminar on Climate Change, Nanoscience and Nanotechnology, University of Nigeria, Nsukka From November 17 – 20, 2010.
6. 4th European Photovoltaic Solar Energy Conference and Exhibition 21 – 25 September 2009, held at convention Centre and International Fair, Hamburg, Germany. Paper presented: Synthesis and Characterization of CdS/PbS and CdS/TIS Thin Films Grown on Polymer Matrix by Chemical Bath Deposition (CBD) Method.
7. The 5th International Conference of The African Material Research Society (A-MRS) plus 8th Nigerian Material Congress (NIMACON 2009), held at Sheraton Hotel and Towers, Abuja. (14 – 18 December 2009) Papers Presented:
- i. Synthesis, Characterization and Comparative Study of CdS And CdSe Nanocrystalline Thin Films for Photovoltaic Application.
- ii. Chemical Bath Deposition (CBD) And Characterization Of PVP Capped Tin Oxide Thin Film.
8. Organised with Dr. F. I. Ezema the US/Africa International Workshop on Nanotechnology and Nanosciences Education Nsukka, 20 -23 April 2008, organised by the Solid State/Materials Science Division, Physics and Astronomy Department, University of Nigeria, Nsukka, (UNN) Nigeria.
9. Nigerian Material Congress NIMACON 2008, Engineering and Materials Development Institute, Akure, Nigeria, November 4-8, 2008, Paper read, “Effect of deposition time on the band-gap and optical properties of chemical bath deposited CdNiS Thin Films.”
10. National Solar Energy Forum/Conference NASEF’08, Nov. 2008 held at The University of Ibadan.
11. 31st Annual Conference of the Nigerian Institute of Physics (NIP), 2008, held at Federal College of Technology Owerri (FUTO).
12. 4th International Conference of the African Materials Society, (AMRS), Dec 10-14, 2007 held at the Green Sand Hotel, Dar es Salaam, Tanzania Paper read “Band Gap Shift and Optical Characterization of Chemical Bath Deposited MnSe Thin Films on Annealing.
And 24 other local and International conferences with papers read from 1987 to 2007
- Successfully graduated 7 Ph. D and 25 M. Sc. students and currently supervising 7 Ph. D and 8 M. Sc students.
- Reviewed over 50 journal articles.
- Served in the National Universities Commission Accreditation Team.
- Countries visited include: UK, Ireland, Italy, USA, The Netherlands, Ghana, Senegal, The Gambia, South Africa, Tanzania, Germany, Cameroun, Zimbabwe, and Ethiopia.
Consultancy Services
Osuji, R.U., (2001) Energy Consumption Pattern of Women in Nigeria: Implications for Energy Technology Planning and Policy. Technical report to African Technology Policy Studies (ATPS) Network, IDRC, Nairobi, Kenya under Research Grant No. 92-0418.
Onyegegbu, S.O., Onyejekwe, D.C., Ekechukwu, O.V., Enibe, S.O., Oparaku, O.U., Osuji, R.U. and Unachukwu, G.O. (1997) The Environmental Benefits of Using Renewable Energy Sources in Nigeria. Technical Report to UNESCO.
Publications: Journal Articles
1. A.C. Nkele, A.C. Nwanya, U Nwankwo, A.B.C Ekwealor, R. U Osuji, R Bucher, M.k Maaza, and F. I. Ezema, (2019) Structural, optical and electrochemical properties of SILAR-deposited zirconium-doped cadmium oxide thin films – Materials Research Express, 2019, In Press.
2. R. M. Obodo, A.C. Nwanya, A.B.C. Ekwealor, I Ahmad, T Zhao, Rose U Osuji, M. Maaza, and F. I. Ezema (2019), Influence of pH and Annealing on the optical and electrochemical properties of Cobalt (III) Oxide (Co3O4) Thin Films, Surfaces and Interfaces, 16, 114-119.
3. R.O. Ijeh, A.C. Nwanya, A.C. Nkele, Z. Khumalo, I.G. Madiba, A.K. Bashir, R.U. Osuji, M. Maaza, F. Ezema (2019), Magnetic and Optical properties of Electrodeposited Nanospherical Copper Doped Nickel Oxide Thin Films, Physica E: Low-dimensional Systems and Nanostructures, 113, 223-239.
4. A. C. Nkele, U. K. Chime, A. C. Nwanya, D. Obi, R. U. Osuji, R. Bucher, P. M. Ejikeme, M. Maaza, and F. I. Ezema, (2019), Role of metallic dopants on the properties of copper (1) iodide nanopod-like structures, Vacuum, 161, 306–313.
5. S. U. Offiah , A.N.C. Agbogu , A. C. Nwanya, A. C. Nkele , U. K. Chime, B.T. Sone , M.M. Duvenhage, S. Botha , A.B.C. Ekwealor , R.U. Osuji, M. Maaza, and F. I. Ezema, (2019), Influence of cadmium precursor concentrations on the structural, optical and electrochemical impedance properties of CdZnS thin films, Vacuum, 160, 246-254.
6. M.C. Nwankwo, A.C. Nwanya, A. Agbogu, A.B.C Ekwealor, Paul M Ejikeme, R Bucher, R.U. Osuji, M. Maaza, and Fabian I. Ezema (2018), Electrochemical supercapacitive properties of SILAR-Deposited Mn3O4 electrodes, Vacuum, (2018), 158, 206-214.
7. M. D. Tyona, R. U. Osuji, C. D. Lokhande, and F. I. Ezema, (2018) Photovoltaic Properties of Aluminum Doped Zinc Oxide Electrodes Based on Variation of Aluminum Impurities in the Semiconductor, Journal of Materials Physics and Chemistry, 2018, Vol. 6, No. 1, 9-16
8. M.D. Tyona, S.B. Jambure, C.D. Lokhande, A.G. Banpurkar, R.U. Osuji, F.I. Ezema, (2018) Dye-Sensitized Solar Cells Based on Al-Doped ZnO Photoelectrodes Sensitized with Rhodamine, Materials Letters, PII: S0167-577X (18)30396-3, DOI: https://doi.org/10.1016/j.matlet.2018.03.040.
9. Blessing N. Ezealigo, Assumpta C. Nwanya, Solomon Offiah, Paul, Ejikeme, Rose Osuji, Malik Maaza, and Fabian I. Ezema, (2017), Method to Control the Optical properties: Band Gap Energy of Mixed Halide Organolead Perovskites, Arabian Journal of Chemistry, DOI: 10.1016/j.arabjc.2017.09.002.
10. Blessing N. Ezealigo, Assumpta C. Nwanya, A. Simo, R Bucher, R. U Osuji, M. Maaza, MV Reddy, and F. I Ezema (2017), “A study on solution deposited CuSCN thin films: Structural, electrochemical, optical properties.” Arabian Journal of Chemistry. In press.
11. Assumpta C Nwanya, Chawki. Awada, Daniel Obi, Kumar Raju, Kenneth I. Ozoemena, Rose U. Osuji, Andreas Ruediger, Malik Maaza, Federico Rosei, and Fabian I. Ezema, (2017) Nanoporous copper- cobalt mixed oxide nanorod bundles as high performance pseudocapactive electrodes,2017, Journal of electroanalytical chemistry 787 (2017) 24–35.
12. Blessing N. Ezealigo, Assumpta C. Nwanya, Aline Simo, R. Bucher, Rose U. Osuji, Malik Maaza, M.V. Reddy, and Fabian I. Ezema, (2017), Optical and Electrochemical Capacitive Properties of Triangular Nanostructured Copper (I) Iodide Thin Film CuI; Photoluminescence; Successive Ionic Layer, Arabian Journal of chemistry, DOI: 10.1016/j.arabjc.2017.01.008.
13. Solomon Offiah, Solomon Agbo, Pavol Sutta Paulinus Ugwuoke, Malik Maaza, Rose Osuji, and Fabian Ezema, (2017), Study of the extrinsic properties ZnO:Al grown by SILAR technique for solar cell applications, Journal of solid state electrochemistry, DOI: 10.1007/s10008-017-3514-6.
14. Tyona Mrumun David, R.U. Osuji, P.U. Asogwa, N.M. Shinde, S.B. Jambure, and F.I. Ezema, (2017), Photo-electrochemical (PEC) studies, Structural Modification and Band Gap Tailoring of Zinc Oxide Thin Films using Copper Impurities, Journal of Solid State Electrochemistry, DOI: 10.1007/s10008-017-3533-3.
15. Blessing N. Ezealigo, Assumpta C. Nwanya, Solomon Offiah, Paul Ejikeme, Rose Osuji, Malik Maaza, and Fabian I. Ezema, (2017), Method to Control the Optical properties: Band Gap Energy of Mixed Halide Organolead Perovskites, Arabian Journal of Chemistry, https://doi.org/10.1016/j.arabjc.2017.09.002.
16 Assumpta C Nwanya, Daniel Obi, Rose U. Osuji, R. Bucher, Malik Maaza, and Fabian I. Ezema (2017) Simple chemical route for nano-rodlike cobalt oxide films for electrochemical energy storage applications, Journal of Solid State Electrochemistry, DOI: 10.1007/s10008-017-3520-8.
17 Solomon Offiah, Solomon Agbo, Pavol Sutta, Paulinus Ugwuoke, Malik Maaza, Rose Osuji, and Fabian Ezema, (2017), Study of the extrinsic properties ZnO:Al grown by SILAR technique for solar cell applications, Journal of solid state electrochemistry, DOI: 10.1007/s10008-017-3514-6.
18 Tyona Mrumun David, R.U. Osuji, P.U. Asogwa, S.B. Jambure, and F.I. Ezema, (2017), Photo-electrochemical (PEC) studies, Structural Modification and Band Gap Tailoring of Zinc Oxide Thin Films using Copper Impurities, Journal of Solid State Electrochemistry, DOI: 10.1007/s10008-017-3533-3.
19. M. D. Tyona, R. U. Osuji, F. I. Ezema, S. B. Jambure, and C. D. Lokhande, (2016), Enhanced Photoelectrochemical Solar Cells Based on Natural Dye-Sensitized Al-Doped Zinc Oxide Electrodes, Advances in Applied Science Research, 7(4):18-31.
20. M. D. Tyona, R. U. Osuji, F. I. Ezema, and C. D. Lokhande, (2016), Modification of Structural and Optical Properties Induced by Annealing of ZnO Thin Films Synthesized by Sol Gel Spin Coating Technique, Nigerian Journal of Pure and Applied Sciences, vol 8, 242-253
21. R. Daniel-Umeri, R.U. Osuji, and F.I Ezema, (2016), Synthesis and Characterisation of Copper Oxide Thin Films Using Successive Ionic Layer Adsorption Reaction (SILAR) Method Chemistry and Materials Research, Vol.8 No.6, 2016, 68-76
22. Ifeanyichukwu C. Amaechi, Assumpta C. Nwanya, Daniel Obi, Sebastine C. Ezugwu, Alice E. Udounwa, Azubike B.C. Ekwealor, Rose U. Osuji, Malik Maaza, and Fabian I. Ezema, Structural characterization and electrochemical properties of cerium-vanadium (Ce-V) mixed oxide films synthesized by chemical route, Ceramics International (2016), 42 (2), 3518-3524
23. Assumpta C. Nwanya, Daniel Obi, Kenneth I. Ozoemena, Rose U. Osuji, Chawki Awada, Andreas Ruediger, Malik Maaza, Federico Rosei, and Fabian I. Ezema, (2016), Facile Synthesis of Nanosheet-like CuO Film and its Potential Application as a High-Performance Pseudocapacitor Electrode, Electrochimica Acta, Volume 198, 20 April 2016, Pages 220-230.
24. A. C. Nwanya, S. U. Offiah, C. I. Amaechi, S. Agbo, S. C. Ezugwuc, B.T. Sone, R. U. Osuji, M. Maaza, and F. I. Ezema, (2015), “Electrochromic and electrochemical supercapacitive properties of Room Temperature PVP capped Ni(OH)2/NiO Thin Films” Electrochimica Acta, 171, 128-141.
25. A.C. Nwanya, C. I. Amaechi, A.E. Udounwa, R.U Osuji, M. Maaza, and F. I. Ezema, (2015), “Complex Impedance and Conductivity of Agar based Ionic Conducting Polymer Electrolytes” (Journal of Applied Physics A, “DOI10.1007/s00339-014-8979-x”, 2015).
26. D. C. Iwueke, C. I. Amaechi, A. C. Nwanya, A. B. C. Ekwealor, P. U. Asogwa, R.U. Osuji, M. Maaza, and F. I. Ezema, (2015), “A Novel chemical preparation of Ni(OH)2/CuO nanocomposite thin films for supercapacitive applications”, J Mater Sci: Mater Electron (2015) 26:2236–2242 DOI 10.1007/s10854-015-2674-3.
27. Ifeanyichukwu Chinedu Amaechi, Assumpta C. Nwanya, Azubike B.C. Ekwealor, Paul U. Asogwa, Rose U. Osuji, Malik Maaza, and Fabian I. Ezema, (2015), Electronic thermal conductivity, thermoelectric properties and supercapacitive behaviour of conjugated polymer nanocomposite (polyaniline-WO3) thin film, Eur. Phys. J. Appl. Phys., 69 30901 DOI: http://dx.doi.org/10.1051/epjap/2015140441
28. A.C. Nwanya, C. I. Amaechi, A.B.C. Ekwealor, R.U Osuji, M. Maaza, and F. I. Ezema Dye Sensitized Solar Cell with Natural Gel Polymer Electrolytes and f-MWCNT as Counter Electrode 2015, Philosophical Magazine 95, 13, 1490 – 1498.
29. C. I. Amaechi, A. C. Nwanya, P. U. Asogwa, R. U. Osuji, M. Maaza, and F. I. Ezema “Hall Coefficient Determination and Electrical Properties of Chemical Bath Deposited n-WO3 Thin Films” (Journal of Electronic Materials, (2015) 44(4), 1110 – 1115).
30. A.C. Nwanya, C. I. Amaechi, A.E. Udounwa, R.U Osuji, M. Maaza, and F. I. Ezema, (2015), “Complex Impedance and Conductivity of Agar based Ionic Conducting Polymer Electrolytes” (Journal of Applied Physics A, “DOI10.1007/s00339-014-8979-x”, 2015).
31. D. C. Iwueke, C. I. Amaechi, A. C. Nwanya, A. B. C. Ekwealor, P. U. Asogwa, R.U. Osuji, M. Maaza, and F. I. Ezema, (2015), “A Novel chemical preparation of Ni(OH)2/CuO nanocomposite thin films for supercapacitive applications”, J Mater Sci: Mater Electron (2015) 26:2236–2242 DOI 10.1007/s10854-015-2674- 3.
32. F. I. Ezema, Y. Kayama, I. C. Amaechi, T. Hiramatsu, A. C. Nwanya, R. U. Osuji, M. Malik, and M. Sugiyama, (2014), Effect Of Annealing On The Properties Of Chemical Bath Deposited Cds Buffer Layer Of Cis Solar Cells, Chalcogenide Letters, 11(12), 2014, 629 – 638.
33. A. C. Nwanya, P. R. Deshmukh, R.U. Osuji, Maaza Malik, C. D. Lokhande, and F.I. Ezema, (2014), “Synthesis, Characterization and Gas Sensing properties of SILAR deposited ZnO-CdO nano-composite thin film” Sensors & Actuators: B. Chemical,10.1016/j.snb.2014.09.111.
34. A. C. Nwanya, Cosmas Chigbo, S.C. Ezugwu, R.U. Osuji, Maaza Malik, and F.I. Ezema, (2014) “Transformation of Cadmium Hydroxide to Cadmium Oxide Thin Films Synthesized by SILAR Deposition Process: Role of varying Deposition cycles”, Journal of the Association of Arab Universities for Basic and Applied Sciences, http://10.1016/j.jaubas.2014.09.001.
35. U. C. Uduh, R. M. Obodo S. Esaenwi, C. I. Amaechi, P. U. Asogwa, R. U. Osuji, and F.I. Ezema, (2014), Sol–gel synthesis, optical and structural characterization of ZrOS nanopowder J Sol-Gel Sci Technol (2014) 71:79–85 DOI 10.1007/s10971-014-3331-7.
36. C. I. Amaechi, P. U. Asogwa, A. B. C. Ekwealor, R. U. Osuji, M. Maaza, and F. I. Ezema, (2014), Fabrication and capacitive characteristics of conjugated polymer composite p-polyaniline/n-WO3 heterojunction Appl. Phys. A DOI 10.1007/s00339-014-8599-5.
37. S.U. Offiah, A.C. Nwanya, S.C. Ezugwu, B.T. Sone, R.U. Osuji, Maaza Malik, C.D. Lokhande, and F.I. Ezema, (2014), “Chemical Bath Synthesis and physico-chemical Characterizations of NiO-CoO Composite Thin Films for Supercapacitor applications” International Journal of Electrochemical Science, 9, 5837-5848.
38. S.U. Offiah, M.O. Nwodo, A C. Nwanya, S.C. Ezugwu, S.N. Agbo, P.E. Ugwuoke, R.U. Osuji, and F.I. Ezema, (2014), “Effects of post-thermal treatments on morphological and optical properties of PVP capped NiO/Ni(OH)2 thin films synthesized by solution growth”, Optik – International Journal of Light and Electrochem Optics, Vol. 125, 2905–2908 http://dx.doi.org/10.1016/j.ijleo.2013.11.073.
39. A. C. Nwanya, C. J. Jafta, P. M. Ejikeme, P. E. Ugwuoke, M.V. Reddy, R. U. Osuji, K. I. Ozoemena, and F. I. Ezema, (2014), “Electrochromic and electrochemical capacitive properties of tungsten oxide and its polyaniline nanocomposite films obtained by chemical bath deposition method”, Electrochimica Acta, Vol. 128, 218–225.
40. Adrian Ohwofosirai, C. Chigbo, S.L. Mammah, P.E. Ugwuoke, R.U. Osuji, and F. I. Ezema, (2013), Flower-Like ZnO Thin Film Deposited by Chemical Bath Deposition, Journal of NanoScience, NanoEngineering & Applications, 3(1), 16-21
41. M.D. Tyona, R.U. Osuji, and F.I. Ezema, (2013), A review of zinc oxide photoanode films for dye-sensitized solar cells based on zinc oxide nanostructures, Advances in Nano Research, Vol. 1, No. 1 (2013) 43-58, DOI: http://dx.doi.org/10.12989/anr.2013.1.1.043.
42. Matthew David Femi, Adrian Ohwofosirai, Aboritoli Sunday, Ogah Sunday, B. A. Ezekoye, F. I. Ezema, and R. U. Osuji, (2013), Variation of the Optical Conductivity, Dielectric Function and the Energy Bandgap of CdO Using Cadmium Acetate Dehydrate, International Journal of Advances in Electrical and Electronics Engineering, V2N2:331-337.
43. Nwanya A. C., Ugwuoke, P. E., Ezekoye B. A., Osuji R. U., and Ezema F. I., (2013), “Structural and Optical Properties of Chemical Bath Deposited Silver Oxide Thin Films: Role of Deposition Time,” Advances in Materials Science and Engineering, 2013, Article ID 450820, 8 pages, 2013. doi:10.1155/2013/450820.
44. D.U. Onah, C.E. Okeke, R.U. Osuji, B.A. Ezeokoye, J.E. Ekpe, G.F. Ibeh, A.B.C. Ekwealor, and F.I. Ezema, (2013), Study of the Effects of Thermal Annealing on the Optical Band Gap of Nanocrystalline CoO Thin Films prepared by Chemical Bath Deposition, Chemistry and Materials Research, Vol. 3. No.1.
45. S. U. Offiah, P.E. Ugwuoke, A.B.C. Ekwealor, S. C. Ezugwu, R. U. Osuji, and F. I. Ezema, (2012), Structural and Spectral Analysis of Chemical Bath Deposited Copper Sulfide Thin Films for Solar Energy Conversions, Digest Journal of Nanomaterials and Biostructures, 7(1), 165 – 173.
46. Okpala V. Uche, F.I. Ezema, and Osuji U. Rose. (2012), A Study of the Optical Properties of Un-doped and Potash Doped Lead Chloride Crystal in Silica Gel, Advances in Applied Science Research, 3 (1):103-109.
47. Okpala V. Uche, F.I. Ezema, and Osuji U. Rose, (2012), Synthesis and Characterization of Local Impurities Doped Stannous Iodide (SnI2) Crystal in Silica Gel, Advances in Applied Science Research, 3 (2):1175-1184.
48. S. U. Offiah, P. E. Ugwuoke, F. I. Ezema, A. B. C. Ekwealor, and R. U. Osuji, (2012), Comparative Study of CuxS and CuySe Thin Films Grown by CBD, Chalcogenide Letters 9(5), 257 – 264.
49. D.U. Onah, C.E. Okeke, F.I Ezema, A.B.C Ekwealor, R.U. Osuji, and B.A. Ezekoye, (2012), Synthesis, Structural and Optical Properties of Novel Core-Shell Oxide Materials by Chemical Bath Deposition, Journal of Ovonic Research 8(5), p. 105 – 111.
50. M. O. Nwodo, S.C. Ezugwu, F.I. Ezema, R.U. Osuji, and P.U. Asogwa, (2011), Effect of thermal annealing on the optical and Structural, properties of PbO Thin Film, Journal of Optoelectronics and Biomedical Materials 3 (4), 95-100.
51. S. C. Ezugwu, P. U. Asogwa, F. I. Ezema, and R. U. Osuji, (2010), Synthesis and Characterization of Co Doped CdS Thin Films Grown within a Polymer Matrix by Solution Growth Technique, Journal of Non-Oxide Glasses, 2(2), 121 – 127.
52. F. I. Ezema, S. C. Ezugwu, P. U. Asogwa, A. B. C. Ekwealor, and R. U. Osuji, (2010), Synthesis and characterization of CdS nanowires and CdS/TlS nanoflower grown in a polymer matrix by chemical bath deposition (CBD) method, Optoelectron. Adv. Mater. – Rapid Comm., 4 (5), 747 – 750.
53. F. I. Ezema, D. D. Hile, S. C. Ezugwu, R. U. Osuji, and P. U. Asogwa, (2010), Optical Properties of CdS/CuS & CuS/CdS Heterojunction Thin Films Deposited by Chemical Bath Deposition Technique, Journal of Ovonic Research, 6(3), 99 – 104.
54. M.O. Nwodo, S.C. Ezugwu, F.I. Ezema, P.U. Asogwa, and R.U. Osuji, (2010) Chemical Bath Deposition and Characterization of PVP Capped Tin Oxide Thin Films, Journal of Optoelectronics and Biomedical Materials 2(4), p. 267 – 272.
55. S. C. Ezugwu, F. I. Ezema, R. U. Osuji, P. U. Asogwa, A. B. C. Ekwealor, and B. A. Ezekoye, (2009), Effect of deposition time on the band gap and optical properties of chemical bath deposited CdNiS thin films, Optoelectron. Adv. Mater. – Rapid Comm. 3(2), 141 – 144.
56. P. U. Asogwa, S. C. Ezugwu, F.I. Ezema, and R.U. Osuji, (2009), Influence of Dip Time On The Optical And Solid State Properties of As-Grown Sb2S3 Thin Films, Chalcogenide Letters 6(7), 287 – 292.
57. S. C. Ezugwu, F. I. Ezema, R. U. Osuji, P. U. Asogwa, B. A. Ezekoye, A. B. C. Ekwealor, C. Chigbo, M. Anusuya, and M. Mahaboob Beevi, (2009), Optical studies of chemically deposited PVA-capped PbS nanoparticle thin film, Optoelectron. Adv. Mater. – Rapid Comm., 3(6), 528 – 532.
58. P. U. Asogwa, S. C. Ezugwu, F. I. Ezema, A. B. C. Ekwealor, B. A. Ezekoye, and R. U. Osuji, (2009), Effect of thermal annealing on the band gap and optical properties of chemical bath deposited PbS-CuS thin films, J. Optoelectron. Adv. Mater. (JOAM), 11(7), 940 – 944.
59. F. I. Ezema, A.B.C Ekwealor, and R.U. Osuji, (2008), Optical properties of chemical bath deposited nickel oxide (NiOx) thin films, Superficies y Vacío 21(1), 6-10.
60. F.I. Ezema, A.B.C. Ekwealor, and R.U. Osuji, (2007), Optical properties of chemical bath deposited nickel oxide (NiO) thin films, J. Optoelectron. Adv. Mater. (JOAM), 9(6), 1898-1903.
61. Ezema F. I. and R. U. Osuji (2007) Preparation and Optical Properties of Chemical Bath Deposited MnCdS2 Thin Films, FIZIKA A (Zagreb) Vol.16 No. 2, p107–116.
62. Ezema F.I., A. B. C. Ekwealor, P. U. Asogwa, P. E. Ugwuoke, C. Chigbo, and R. U. Osuji, (2007). Optical Properties and Structural Characterizations of Sb2S3 Thin Films Deposited by Chemical Bath Deposition Technique. Turk J Phys Vol. 31, p 205 – 210.
63. Ezema F.I. and R.U. Osuji (2007). Band Gap Shift and Optical Characterization of Chemical Bath Deposited CdSSe Thin Films on Annealing, Chalcogenide Letters, Vol. 4. No. 6, p 69-75.
64. Ezema F.I., P.U. Asogwa, A.B.C. Ekwealor, P.E. Ugwuoke, and R.U. Osuji (2007) Growth and Optical Properties of Ag2S Thin Films Deposited by Chemical Bath Deposition Technique. J. of the University of Chemical Technology and Metallurgy, 42, p 217-222.
65. Osuji, R.U. and Okeke, C.E. (2006) Study and Analysis of the Photovoltaic Electric Power Requirements of a Farm Village – The Case of Ugwu-Rice, Adani, Nigeria, Nigerian Journal of Solar Energy, Vol. 16, p46-53.
66. Osuji, R.U. (2006) Photoconductivity and Drift Mobility in Undoped CdSe Electroless Deposited Thin Film on Glass Substrate, Nigerian Journal of Solar Energy, Vol. 16, p155-164.
67. Anikpa, P.A. and R.U. Osuji (2006) Comparative Studies of Measured and Estimated Values of Global Solar Radiation Using Epply Pyranometer and Hargreaves Samani-Model at Nsukka Under Varying Climatic Conditions. Nigerian J. of Space Research (NJSR) Vol 2, p 25-36.
68. Ezema, F.I., M.N. Nnabuchi, and R.U. Osuji, (2006) Optical Properties of CuS Thin Films Deposited by Chemical Bath Deposition Technique and their Applications. Journal of Applied Sciences Research (5) 467-476.
69. Ezema, F.I., A.B.C. Ekwealor, and R.U. Osuji, (2006) Effect of thermal Annealing on the Band Gap and Optical Properties of Chemically Deposited ZnSe Thin Films. Turk Phys. vol. 30, p1-7.
70. Ezema, F.I. and R.U. Osuji, (2006) Preparation and Optical Characterization of Chemical Bath Deposited CdCoS2 Thin Films. Journal of Applied Sciences 6 (8):1827-1832.
71. Udounwa, A.C. and R.U. Osuji, (2005) Water Purification Using Solar Radiation in Nigeria. Nigerian Journal of Solar Energy, vol. 15 p 213-220.
72. Osuji, R.U. (2003) Analysis of Chemically Deposited CdSe and CdS Thin Films. Nigerian Journal of Solar Energy, Vol. 14 pp 90-99.
73. Osuji, R.U. (2003) An Evaluation of Institutional Framework for Renewable Energy Education in Nigeria. Nigerian Journal of Solar Energy, Vol. 14 pp 25-28.
74. Osuji, R.U. (2001) Variation of Photoconductivity with Light Intensity in Undoped Chemically Deposited Cadmium Selenide (CdSe) Thin Films. Nigeria Journal of Renewable Energy Vol. 9, Nos. 1&2 pp7-11.
75. Osuji, R.U. (2001) Density of States and Mobility-Lifetime Product in Undoped CdSe Thin Film from Thermostimulated Conductivity and Photoconductivity Measurements, Journal of Applied Sciences, Vol. 4 No. 3 pp 1988-1999.
76. Osuji, R.U. and Okeke, C.E. (1998) Electrical Conductivity and Photo-Response of Chemically Deposited CdS and CdSe Thin Films. Nigerian Journal of Renewable Energy, Vol. 6, Nos. 1 and 2. P. 67-70.
77. Osuji, R.U., C.E. Okeke, and I.S.O. Muokebe, (1993). Characterisation of Electroless Deposited FeS2 Thin Film, Nigerian J. of Solar Energy, Vol. 12, P. 80-86.
78. Ekechukwu, O.V. and Osuji, R.U. (1990) Angström’s Turbidity Coefficient Calculated from Direct Broadband Horizontal Radiation Measurements at Nsukka, Nigeria. Energy and Environment, 5, 3067-3072.
79. Amadi, R.U., Muokebe I.S.O., and Okeke, C.E. (1988) Investigation of the Impact of Atmospheric Particles on Solar Radiation at Nsukka, Nigeria. J. of Energy Conversion and Management, Texas, Vol. 28, No. 4, PP. 287-293.
80. Amadi, R.U., Muokebe I.S.O., and Okeke, C.E. (1986) Measurement of Scattering Extinction Coefficient of Atmospheric Fine Particles at Nsukka, Nigeria. Nigerian J. of Solar Energy, Vol. 5, PP. 50-59, (1986).
Published Conference Proceedings
1. F. I. Ezema, R. U. Osuji, S. C. Ezugwu, A. B. C. Ekwealor, P. U. Asogwa, B. A. Ezekoye, and M. Mahaboob Beevi (2009), Chemical bath deposition of heterojunction thin films for solar cell application, International Conference on Photonics, Nanotechnology and Computer Applications, India, (ICOPNAC-2009), 1, 144-150.
2. G. Ezugwu, F.I. Ezema, and R.U. Osuji, (2006), Effect of Dip Times on Optical properties of chemically deposited Bi2S3 Thin Films. International Conference of the Solar Energy Society of Nigeria, Conference Proceedings, 1, 84-90.
3. Udounwa A.C. and R.U. Osuji (2006). Women in Physics: A Challenge to Nation Building. Proceedings of Annual Conf. of IRDI Sc. & Techn. Forum. Vol 2, Number 6 p 33-38 held at the University of Nigeria, Nsukka.
4. Osuji, R.U. (2004) Women in Non-Conventional Fields. Prize Publishers, chapter 1 in the Proceeding: CAREER DEVELOPMENT. Women Studies Series No.2, pgs 1-10.
Technical Reports
1. Onyegegbu, S.O., Onyejekwe, D.C., Ekechukwu, O.V., Enibe, S.O., Oparaku, O.U., Osuji, R.U., and Unachukwu, G.O. (1997) The Environmental Benefits of Using Renewable Energy Sources in Nigeria. Technical Report submitted to UNESCO.
2. Osuji, R.U., (2001) Energy Consumption Pattern of Women in Nigeria: Implications for Energy Technology Planning and Policy. Technical report to African Technology Policy Studies (ATPS) Network, IDRC, Nairobi, Kenya under Research Grant No. 92-0418.
TEXTBOOKS
1. Osuji, R.U. (2002) Elementary Mechanics. University Textbook for National Open University of Nigeria. (Undergraduate level). Published by National Open University of Nigeria.