Analytical modeling of organic solar cells including monomolecular recombination and carrier generation calculated by optical transfer matrix method |
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| Affiliation: | 1. Universidad Nacional de Colombia—Bogotá, Dpto. de Física, Grupo de Materiales Nanoestructurados y sus Aplicaciones, Cra. 30 No. 45-03 Edificio 404 Lab. 121C Ciudad Universitaria, Bogotá 11001, Colombia;2. Universidad Nacional de Colombia—Bogotá, Dpto. de Física, Grupo de Óptica e Información Cuántica (GOIC), Cra. 30 No. 45-03 Edificio 405 Ofi. 206 Ciudad Universitaria, Bogotá 11001, Colombia;1. Department of Physics and Astronomy, University of Toledo, Toledo, OH 43606, USA;2. Center for Photovoltaics Innovation and Commercialization, University of Toledo, Toledo, OH 43606, USA;3. NSG-Pilkington NA, Northwood, OH 43619 USA;4. National Renewable Energy Laboratory, Golden, CO 80401 USA;5. Physics Faculty, Rocky Mountain College, Billings, MT 59102 USA;6. Instituto de Ciências Exatas, Departamento de Física, Universidade Federal de Minas Gerais, BR-31270901 Belo Horizonte, MG, Brazil;1. University of Tabriz, OIC Research Group, Tabriz 5166614761, Iran;2. SP- EPT Labs., ASEPE Company, Industrial Park of Advanced Technologies, Tabriz 536419679, Iran;1. School of Physical Electronics, University of Electronic Science and Technology, Chengdu 610054, China;2. Laboratory for Shock Wave and Detonation Physics Research, Southwest Institute of Fluid Physics, Mianyang 621900, China |
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| Abstract: | An analytical model of organic solar cell has been developed including the effect of monomolecular recombination and charge carrier generation rate, simultaneously. The charge carrier generation rate, depending on position and wavelength, obtained from optical transfer matrix method, has been incorporated into electrical transport equation of carriers; this has led to combining optical and electrical phenomena into this model. Charge carrier generation rate profile has been investigated and included to develop the model. The proposed model addresses the propagation of light and the effects of optical phenomena like reflection and interference inside the device. Compared to previous models, this model is an improved version because of considering recombination mechanism and position and wavelength dependent generation rate simultaneously. This analytical model is useful for finding the performance of the organic solar cell device such as current-voltage relation, power-voltage relation, efficiency, etc. avoiding the complexities of numerical calculations. The proposed model has been validated by comparing the results obtained from the model with that of published experimental works. This model may help to analyse organic solar cells and optimize their parameters for improving the performance. |
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| Keywords: | Analytical model Organic solar cell Monomolecular recombination Charge carrier generation rate Optical transfer matrix method |
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