Electro-Optical Simulation Of In Ultra-Thin Photonic Crystal Amorphous Silicon Solar Cells
Hydrogenated amorphous Si (a-Si:H) is an important solar cell material. The critical problem in the a-Si:H-based photovoltaic cell is increasing the conversion efficiency. To overcome the difficulty, higher conversion efficiency demands a longer optical path to increase optical absorption. Thus, a light trapping structure is needed to obtain more efficient absorption. In this context, we propose a complete solar cell structure for which a 1D grating is etched into the ultrathin active absorbing layer of a one-dimensional "CP 1D" photonic crystal a-Si: H characterized by the optimal parameters: period a = 480 nm, a filling factor ff = 50% and a depth d = 150 nm. This was selected by varying the CP1D parameters to maximize the absorption integrated into the active layer. CP1D is suggested as an intermediate layer in the solar cell concentration system. This study allowed us to model the optical and electrical behavior of a CP1D solar cell. After optimization of the geometrical parameters (period and fill factor ... etc.), we concluded that the CP1D led to greater optical gains than for their unstructured equivalent. The simulation clearly illustrates that the electric field strongly affects the electro-optical characteristics of the devices studied, and that it is clear that 1D PC solar cells as active layer have exhibited a high electric field distribution. We have focused on the net on the effect of the active layer and its beneficial role in the sense of expressing the photovoltaic performance of the devices.
 Martin F. Schubert, Frank W. Mont, Sameer Chhajed, David J. Poxson, Jong Kyu Kim, and E. Fred Schubert, “Design of multilayer antireflection coatings made from co-sputtered and low-refractive index materials by genetic algorithm,” OPTICS EXPRESS 16 (08), 5290–5298 (2008).
 Lesley Chan, Dongseok Kang, Sung-Min Lee, Weigu Li, Hajirah Hunter, and Jongseung Yoon, “Broadband antireflection and absorption enhancement of ultrathin silicon solar microcells enabled with density-graded surface nanostructures,” Applied Physics Letters 104, 223905 (2014); 10.1063/1.4881260
 Huihui Yue, Rui Jia, Chen Chen, Wuchang Ding, Yanlong Meng, Deqi Wu, Dawei Wu, Wei Chen, Xinyu Liu, Zhi Jin, Wenwu Wang, and Tianchun Ye, “Antireflection properties and solar cell application of silicon nanostructures,” J. Vac. Sci. Technol, 08 (01), 46–52 (2011).
 Jiun-Yeu Chen, “Design of photonic crystal enhanced light-trapping structures for photovoltaic cells,” Journal of Engineering Technology and Education, 23 (03), 031208 (2011).
 Harry a. Atwater and Albert Polman “Plasmonics for improved photovoltaic devices,” Nat. Mater. 9 (3), 205–213 (2010).
 Yuanyuan Li, Jian Pan, Peng Zhan, Shining Zhu, Naiben Ming, Zhenlin Wang, Wenda Han, Xunya Jiang ,and Jian Zi, “Surface plasmon coupling enhanced dielectric environment sensitivity in a quasi-three-dimensional metallic nanohole array,” Opt. Express 18(04), 3546–3550 (2010).
 Peter N. Saeta, Vivian E. Ferry, Domenico Pacifici, Jeremy N. Munday, and Harry A. Atwater, “How much can guided modes enhance absorption in thin solar cells?” Opt. Express 17(23), 20975–20990 (2009).
 S. H. Zaidi, J. Gee, and D. S. Ruby, “Diffraction grating structures in solar cells,” in Twenty-Eighth IEEE Photovolt. Spec. Conf. (2000), pp. 395–398.
 J. G. Mutitu, S. Shi, C. Chen, T. Creazzo, A. Barnett, C. Honsberg, and D. W. Prather, “Thin film solar cell design based on photonic crystal and diffractive grating structures,” Opt. Express 16(19), 15238–15248 (2008).
 O. Painter, R.K. Lee, A. Scherer, A. Yariv, J.D. O’Brien, P.D. Dapkus, I. Kim, “Two-Dimensional Photonic Band-Gap Defect Mode Laser,”Science,284, 1819-1821, (1999).
 Leo T. Varghese, Yi Xuan, Ben Niu, Li Fan, Peter Bermel, and Mi nghao Qi, “Enhanced photon management of thin-film silicon solar cells using inverse opal photonic crystals with 3D photonic bandgaps,”Adv Optical Mater. 2013;1:692 – 8.
 A.Merabti, , A.Hasni, and M.Elmir, “Numerical approach of the influence of geometric properties on the absorbing in photonic crystal,” JOURNAL OF NANO- AND ELECTRONIC PHYSICS, vol. 8 No 8, 03046(5pp) (2016).
 S. Guenneau, A. Nicolet, F. Zolla, and S. Lasquellec, “Modeling of Photonic Crystal Optical Fibers With Finite Elements,” IEEE Trans. Magn. , vol. 38, No. 2, Mar. 2002.
 refractiveindex.info, «Optical constants of In2O3-SnO2 (Indium tin oxide, ITO» (2016). [En ligne]. Available: http://refractiveindex.info/?shelf=other&book=In2O3-SnO2&page=Moerland
 refractiveindex.info, «Optical constants of Al (Aluminium)» (2016). [En ligne]. Available: http://refractiveindex.info/?shelf=main&book=Al&page=Rakic
 refractiveindex.info, «Optical constants of ZnO (Zinc oxide)» (2016). [En ligne]. Available: http://refractiveindex.info/?shelf=main&book=ZnO&page=Bond-o
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