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ABSTRACT
Quantum wells have attracted so much attention in solar cells due to their high photovoltaic ability as they are able to trap and control electrons in their structure. Properties of quantum-well(QW) structures have proved useful in providing enhanced device characteristics and even in generating new device applications. This project work presents a theory needed to understand the properties of QW structures, as well as the rules employed in the design of photodetectors based on QWs. The experimental and theoretical results concerning coupled QW structures are discussed. Semi-magnetic quantum wells attract great attention due to potential device application in the field of spintronics. The novel method of chemical bath deposition is tried in this work and to see if it will alter the properties of the quantum well. Deposition times were also varied to see how difference in deposition time will affect the properties and functionality of the quantum well. UV-Vis and FT-IR spectroscopy were the methods used to characterize the fabricated thin films.
