International Journal of Engineering Works ISSN-p: 2521-2419 ISSN-e: 2409-2770 Vol. 7, Issue 02, PP. 149-153, February 2020 https://www.ijew.io/ https://doi.org/10.34259/ijew.20.702149153 © Authors retain all copyrights 2020 IJEW. This is an open access article distributed under the CC-BY License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited Numerical Simulation for Enhancement of output Performance of WS 2 based Thin Film Solar Cells Sobab Khan 1 , Mudasar Rashid 2 , Waqas Rahim 3 , Muhammad Aitezaz Hussain, 4 Ahtasham Rahim 5 , 1,2,4,5 Department of Renewable Energy Engineering 3 Department of Electrical Engineering 3 CECOS University of IT and Emerging Sciences 1,2,4,5 Center.For. Advanced.Studies.in. Energy University of Engineering and Tecnology.Peshawar 25000, Pakistan mrsobabkhan@gmail.com 1 mudasar_uetian@yahoo.com 2 , engr_waqasrahim@hotmail.com 3 , aitizazk36@gmail.com 4 , khanshami361@gmail.com 5 Received: 13 February, Revised: 18 February, Accepted: 21 February Abstract—In this paper , Tungsten Disulfide is utilized for the development of an efficient model, using SCAPS one dimensional Simulator. Performance of the developed model is compared with other thin film solar cells currently under study. An efficient solar cell model with comparable photovoltaic parameters to the recent thin film models is obtained. Taking ZnO window layer material, ZnSe as buffer layer material, WS2 as absorption layer material and Mg as back surface field with back reflector a 20% efficient, design with 0.9Voc, 25 mA/cm2 current density and fill factor of 85% is developed. Keywords— Sustainable, Photovoltaic, Simulator, Back Surface field, Reflector. I. INTRODUCTION Energy has become essential in economic growth in any country and a key element to relieve from poverty. Global energy structure is in the stage of seizure in the current scenario. Venery for sustainable power to meet the ever-growing world’s energy demand has encouraged photovoltaic community to emphasis on renewable energy field in particular. Renewable energy sources are in abundance in nature such as wind, hydro power, biomass and the energy form the sun. Solar energy is the most abundant, inexhaustible and clean of all the renewable energy resources till date. The power from sun intercepted by the earth is about 1.8 × 1011 MW, which is many times larger than the present rate of all the energy consumption. Photovoltaic technology is one of the finest ways to harness the solar power. Photovoltaic conversion is the direct conversion of sunlight into electricity without any heat engine to interfere. Photovoltaic devices are rugged and simple in design requiring very little maintenance and their biggest advantage being their construction as stand-alone systems to give outputs from microwatts to megawatts. Hence they are used for power source, water pumping, remote buildings, solar home systems, communications, satellites and space vehicles, reverse osmosis plants, and for even megawatt scale power plants. With such a vast array of applications, the demand for photovoltaics is increasing every year. A huge amount of research work has been made in solar energy in particular and scientists are investigating particular in thin films because of their cost verses energy efficiency. A. Thin Films Technology Thin films greatly reduce the amount of semiconductor material required for each cell when compared to silicon wafers and hence lowers the cost of production of photovoltaic cells. Gallium arsenide (GaAs), copper, cadmium telluride (CdTe) indium diselenide (CuInSe2) and titanium dioxide (TiO2) are materials that have been mostly used for thin film PV cells. Barnett et al. investigated that solar cells utilizing thin-film polycrystalline silicon can achieve photovoltaic power conversion efficiencies greater than 19% as a result of light trapping and back surface passivation with optimum silicon thickness [1]. Aberle reviewed the most promising thin-film c- Si PV technologies that have emerged during the last 10 years and found that three different thin-film c-Si PV technologies (SLIVER, hybrid, CSG) can be transferred to industrial production]. compared epitaxial growth of silicon thin film on double porous sacrificial layers obtained by liquid or vapor phase epitaxy (LPE or VPE) and found that mobility and diffusion length are slightly higher with VPE compared to LPE fabricating solar cells using a detached film obtained with VPE and without any surface passivation treatment or antireflective coating, exhibits an efficiency of 4.2% with a fill factor of 0.69 [2]. Sagan et al. studied reflection high-energy electron diffraction (RHEED) pattern of CdTe and HgCdTe thin films grown on Si by pulse laser deposition [3]. Solanki et al. described a process of transferring thin porous silicon layers (PSL) onto a ceramic substrate like alumina [4]. Powalla et al. assessed that all existing thin-film PV technologies, especially the Cu(In,Ga)Se2 (CIGS)-based technology, have a high cost reduction potential at high production volumes projecting futuristic challenge to combine high production volumes with