All-dielectric planar solar cells with multilayer ARC and non-periodic DBR nanolayers based on transmission line equivalent circuit

In this paper, an analytical approach based on transmission line equivalent circuit (TLEC) is used to model planar solar cells. The proposed method has been applied to the all-dielectric planar solar cells with multilayer anti-reflection coating (ARC) and non-periodic distributed Bragg reflector (DBR) nanolayers. This analytical approach is very efficient and easy to be implemented. Consequently, it is straightforward to employ several optimization procedures to determine the optimum thickness for different layers. In this paper, optimization process according to the Fuzzy adaptive modified particle swarm optimization (FAMPSO) algorithm is utilized to maximize the absorption enhancement of these types of solar cells. Results demonstrate the possibility of wideband absorption in all-dielectric planar solar cells and comparable to the conventional light trapping structures. •An analytical approach is used to model planar solar cells.•The proposed method is based on transmission line equivalent circuit.•This method is much faster than the numerical methods and it is very accurate.•All-dielectric planar solar cells are modeled based on this analytical procedure.•Optimization of these structures are carried out according to FAMPSO algorithm.