The virtual simulation of organic solar cell is carried in General purpose Photovoltaic Device Model (GPVDM) software. In this work performance of Organic solar cell is investigated. Organic solar cell is composed of 3-hexyl thiophene (P3HT:PCBM) a polymer as an active layer. The poly (3, 4-ethylenedioxy thiophene) poly (styrenesulfonate) (PEDOT:PSS) is added as an electron blocking layer and Indium Tin Oxide (ITO) film is used as top layer because of its high conductivity and very low resistance to transmission of light in visible range. GPVDM is used for light harvesting device simulations. It works on basis of Poisson’s Equations to equate the device internal parameters that may be electrical or optical. Shockley-Read-Hall (SRH) formulations are used to calculate recombination and carrier trapping or mobility. In this study the temperature, band gap and active layer thickness is studied, how they affect the performance of organic solar cell. Variation in temperature inversely affects the efficiency. With increase in Band Gap efficiency also increase till band gap reaches 1.6eV, moreover increase in band gap increases efficiency but open circuit voltage value gets negative. The optimum value of active layer we got is 20nm which gives high efficiency.
Wahid Amin Zulfiqar Ali Muhammad Babar Iqbal Muhammad Arsalan Wahid “Effect of variation in Temperature Band gap and Thickness of Active Layer on Efficiency of Organic Solar Cell” International Journal of Engineering Works Vol. 7 Issue 12 PP. 401-405 December 2020 https://doi.org/10.34259/ijew.20.712401405.
 N.S. Sariciftci, L. Smilowitz, A. J. Heeger, and F. Wudl., Photo induced electron transfer from a conducting polymer to bulkminsterfullerene. Science 258, 1474 (1992).
 G. Yu, J. Gao, J. C. Hummelen, F. Wudl, and A. J. Heeger. Optimization of conjugate-polymer based bulk hetero junction. Science 270, 1789 (1995).
 N. Rastogi, N. Singh, and M. Saxena, A brief review on current need of organic solar cells. International Journal of Innovative Research in Science, Engineering and Technology, 2, 12, (2013).
 S. C. Jain, M. Willander, and V. Kumar, Conducting organic material and devices (Academic, San Diego, (2007).
 W. J. Belcher, K. I. Wagner, and P. C. Dastoor, The effect of porphyrin inclusion on the spectral response of ternaryP3HT: PCBM bulk hetero junction solar cells, Sol. Energy Mater. Sol. Cells 91 447- 452 (2007).
 Y. Kim, S. Cook, S. M. Tuladhar, S. A. Choulis, J. Nelson, J. R. Durrant, D. D. C. Bradley, M. Giles, I. McCulloch, C. S. Ha,
 and M. Ree, A strong regioregularity effect in self-organizing conjugated polymer films and high-efficiency polythiophene fullerene solar cells, Nat. Mater. 5 197-203 (2006).
 S. H. Park, A. Roy, S. Beaupre, S. Cho, N. Coates, J.S. Moon, D. Moses, M. Leclerc, K. Lee, and A. J. Heeger, Bulk hetero junction solar cells with internal quantum efficiency approaching 100%, Nature Photonics 3, 297–302 (2009).
 F. C. Krebs, et al., A round robin study of flexible large-area roll- to-roll processed polymer solar cell modules, Solar Energy Material and Solar Cells 93, 1968–1977 (2009)
 W. Ma, C. Yang, X. Gong, K. S. Lee, A. J. Heeger, Thermally stable, efficient polymer solar cells with nanoscale control of the interpenetrating network morphology, Advanced Functional Materials 15 ,1617–1622 (2005).
 P.P. Boix, A. Guerrero, L.F. Marchesi. G.J. Garcia-Belmonte, Bisquert, Current–voltage characteristics of bulk hetero junction organic solar cells: connection between light and dark curves, Adv. Energy Mater 1, 1073–1078 (2011)