Enhancing quantum efficiency of thin-film silicon solar cells by Pareto optimality

Andrea Patanè (), Andrea Santoro (), Vittorio Romano (), Antonino La Magna () and Giuseppe Nicosia ()
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Andrea Patanè: University of Oxford
Andrea Santoro: Queen Mary University of London
Vittorio Romano: University of Catania
Antonino La Magna: CNR
Giuseppe Nicosia: University of Catania

Journal of Global Optimization, 2018, vol. 72, issue 3, No 6, 515 pages

Abstract: Abstract We present a composite design methodology for the simulation and optimization of the solar cell performance. Our method is based on the synergy of different computational techniques and it is especially designed for the thin-film cell technology. In particular, we aim to efficiently simulate light trapping and plasmonic effects to enhance the light harvesting of the cell. The methodology is based on the sequential application of a hierarchy of approaches: (a) full Maxwell simulations are applied to derive the photon’s scattering probability in systems presenting textured interfaces; (b) calibrated Photonic Monte Carlo is used in junction with the scattering matrices method to evaluate coherent and scattered photon absorption in the full cell architectures; (c) the results of these advanced optical simulations are used as the pair generation terms in model implemented in an effective Technology Computer Aided Design tool for the derivation of the cell performance; (d) the models are investigated by qualitative and quantitative sensitivity analysis algorithms, to evaluate the importance of the design parameters considered on the models output and to get a first order descriptions of the objective space; (e) sensitivity analysis results are used to guide and simplify the optimization of the model achieved through both Single Objective Optimization (in order to fully maximize devices efficiency) and Multi Objective Optimization (in order to balance efficiency and cost); (f) Local, Global and “Glocal” robustness of optimal solutions found by the optimization algorithms are statistically evaluated; (g) data-based Identifiability Analysis is used to study the relationship between parameters. The results obtained show a noteworthy improvement with respect to the quantum efficiency of the reference cell demonstrating that the methodology presented is suitable for effective optimization of solar cell devices.

Keywords: Thin-film silicon solar cell; Quantum efficiency; Photonic Monte Carlo; Multi-objective optimization; OptIA; Clonal selection algorithm; Morris method; Sobol indexes; Robustness analysis (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1007/s10898-018-0639-9

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