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Dr. Soumya Banerjee
Dr. Banerjee earned his Ph.D. from Trinity College Dublin, Ireland in Feb 2016. His dissertation research was on optical properties of nanostructures grown on semiconductor surfaces. Dr. Banerjee has a B.S. in Physics (Honors, 2008) from Calcutta University, India, and M.S. in Physics (2010) form The Indian Institute of Technology Bombay, India.
Dr. Banerjee’s Master’s research was on Magneto-Optical Kerr Effect (MOKE). He studied MOKE of thin films of ferro-magnetic metals such as iron, nickel and rare earth elements by analyzing the magneto-optical properties. The goal was to find the relationship between the Kerr angle and magnetization by performing experiments employing a MOKE setup that he constructed.
Dr. Banerjee’s doctoral research involved both experimental and theoretical aspects of Reflectance Anisotropy Spectroscopic (RAS) studies of nanostructures on Gr-IV semiconductor surfaces. The aim of this research was to model different nanostructures of Gr-IV semiconductor surfaces by a combination of optical experimental measurements and computer simulations and use this model in future even for Gr-III-V semiconductors if possible. RAS is measured from the samples prepared in Ultra-High Vacuumsystems by either annealing, ion sputtering or molecular beam epitaxy techniques. Different semiconductor surface structures were modeled with the help of hybrid Density Functional Theory. This research also aimed to understand the physics behind band gap engineering of the nanostructures.
He was involved in a short project in Tyndall National Institute, Ireland while doing Ph.D. During this project, he studied RAS of Gallium Arsenide surfaces covered with native oxide, etched with Hydrogen Chloride, Sulphur and Ammonium hydroxide. Aluminium Oxide was deposited, using atomic layer deposition technique, on the etched surface and reflectance anisotropy spectra were taken to see the property change of the surfaces.
During his summer internship in 2010, he was involved in detail study of various Nanostructures of ZnO by X-ray diffraction, Scanning electron microscopy and Atomic force microscopy techniques. He participated in various conferences and summer schools in Europe. He was awarded by prestigious Trinity studentship and Science Foundation of Ireland scholarship in 2010 and other scholarships in India. He has mentoring experience during his Ph.D. He likes to play football, cricket, badminton and squash and likes to read books in leisure time.