Miss Maria Jabeen

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Research Project Title: Design and Optimisation of thin-film solar cell configuration structures using the Finite Element Method.

Project outline: The need for clean energy and reduction in C02 emissions requires the development of alternative sources of energy. Photovoltaic has come out as a promising solution due to its numerous advantages. Photovoltaic researchers are working to optimize the efficiency of photovoltaic power systems. This improvement is being achieved in both system designs and individual cell level. Maximum light absorption enhancement is centre of overall photovoltaic research because it can increase the maximum output current and maximum output voltage. Nanostructured materials are being investigated and developed as versatile components of optoelectronic devices with the ability to manipulate light and control energy flow at nearly the atomic level. There are challenges to overcome for thin film solar cell nanostructures (For example high light trapping and absorption, high short circuit current, maximum conversion efficiency) but the potential benefits are worth the efforts. In order to generate solar energy more feasible, the solar cells efficiency must increase and its cost of production must decrease to generate on a large scale. Thin film photovoltaic cells exhibits the prospects of increasing efficiency and decreasing material costs. Prior studies of nanostructure solar cells primarily focused on survey of photonic particles synthesis and characterization of the structural and optical properties of the resulting nanostructure surfaces. The objective of this study is to investigate and optimise novel Solar Cell nanostructures that would exhibit, high absorption efficiency of light, compactness, low cost and easy to fabricate.  In this research project we initially designed and implemented a new compact and efficient solar cell structure based on unique properties that have significant impact on green energy .In this project we used Full Vectorial Finite Element Method (FVFEM) to design novel compact solar cell structure. we published a new reported structure based upon an optical simulation of maximum light trapping and management in microcrystalline silicon thin-film solar cells by using multitexture schemes and introducing an n-type cadmium sulphide (CdS) buffer layer with the goal of extreme light coupling and absorption in silicon absorber layer. Photon absorption was improved by optimizing the front and back texturing of transparent conductive oxide layers and variation in buffer layer thickness. Our research interest is also designing Graphene based sola cell structures with deep absorption regimes nanograting that enables to produce strong electric field localisation, thus magnetic field at these gratings support strong induce current loop. We investigate novel graphene based solar cells structures with improved absorptions and passivate the interface states which is another urgent task in this field.

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