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Dr David Obada

Jt Post Doctoral Researcher

Contact Details

Jt Post Doctoral Researcher
Address

E: obada.david@itsligo.ie
Post Doctoral Researcher
School of Science
G 1032

M: +353 (0) 89 4164677
E: obada.david@itsligo.ie
 
researcher

Biography

David O. Obada holds a Ph.D. degree in mechanical engineering from the Ahmadu Bello University, Zaria, Nigeria, specializing in production/industrial engineering. His research interests include fracture mechanics, advanced materials, and condensed matter physics. Before joining the Atlantic Technological University, Ireland, David was a research fellow at the University of Ghana, National Environmental Engineering Research Institute, Nagpur, India, and the University of Birmingham, UK.  Also, David was a research and teaching fellow at the Massachusetts Institute of Technology (MIT), USA, and holds a Kaufmann Teaching Certificate from MIT.


Research Interests

Research Projects

  Project Role Description Start Date End Date
A theoretical and computational study on the effect of polaron formation, defects and mechanical properties on the charge localization and trapping at surfaces of lead-free MASnX3 perovskites Post Doctoral Researcher The understanding of the phenomena occurring at the surface is important to improve the efficiency and stability of perovskite solar cells. In this study, we will investigate the charge localization and trapping at the interface of MASnX3 perovskites which may be triggered by the formation of small polarons, surface defects and materials’ elastic properties. These investigations are possible through advanced electronic-structure calculations, via a first principle computational approach considering different surface terminations. We will consider the effects brought about by halide substitution in CH3NH3SnX3 perovskites exploring the halide series with X=Cl, Br, I. Accurate density functional theory (DFT) and one-body Green’s function (G) with the screened Coulomb interaction (W), GW methods will be used for the theoretical descriptions. We hope to find solutions to reduce surface recombination tendencies and describe the variation of the band gaps and energy levels. This helps to determine the influence of electron and hole-doping on the exciton fine structure by developing an understanding of the formation and stabilization of ferroelectric and anti-ferroelectric domains in the lead-free hybrid perovskites. 01-FEB-22 31-JAN-24

Honours and Awards

  Year Title Awarding Body
2018 ACU Engineering Fellowship Association of Common Wealth Universities
2016 RTF-DCS Government of India
2019 Massachusetts Institute of Technology-Empowering the Teachers Program (MIT-ETT) Massachusetts Institute of Technology

Professional Associations

  Association Function From / To
Nigerian Young Academy Chair Person PET working group /

Patents

  Patent Number Title Granted
NG/PT/2019/4224 A novel low compaction protocol and modified method for the determination of the fracture toughness of biowaste - derived hydroxyapatite scaffolds 26-FEB-20

Education

  Year Institution Qualification Subject
2012 Ahmadu Bello University M.Sc. Mechanical Engineering
2008 Ladoke Akintola University of Technology Bachelor of Engineering Mechanical Engineering
2017 Ahmadu Bello University Ph.D. Mechanical Engineering

Internal Collaborators

  Name Institute Country
Dr Akinlolu Akande Atlantic Technological University IRELAND

External Collaborators

  Name Organisation / Institute Country
Prof. Stefano Sanvito School of Physics and CRANN, Trinity College Dublin (TCD), Ireland IRELAND
Dr. Fadwa El-Mellouhi Qatar Environment & Energy Research Institute, Hamad Bin Khalifa University Qatar QATAR