Device simulation of perovskite/silicon tandem solar cell with antireflective coating

Abstract

Semi-transparent perovskite solar cells have significant potential for their use in tandem solar cells with silicon (Si) or copper indium gallium selenide (CIGS) materials. Light management and optical design are important for developing a highly efficient solar cell. Herein, numerical simulation of a perovskite/silicon tandem solar cell was performed using a Matlab analytical program. The single-diode model for a solar cell is used for simulation with ideal working conditions. The tandem solar cell is comprised of two configurations which are the thin filmbased perovskite solar cell on top and a wafer-based silicon solar cell on the bottom, and the silicon sub-cell with silicon nitride (SiNx) anti-reflection coatings (ARC) in series-connected configuration. The material properties like energy bandgap, diffusion length, doping concentration are considered for calculating the device parameters. The bandgap and thickness of the perovskite material, refractive indices, photon flux, and wavelength of light are varied to calculate voltage, current, quantum efficiency, and other parameters of the tandem solar cell. The silicon sub-cell with silicon nitride (SiNx) anti-reflection coatings (ARC) in series-connected configuration decreased the reflectivity and increased the overall voltage and current of the tandem cell. The double-layer ARC films have increased the efficiency up to 1%. The efficiency of the two-terminal tandem device is found out to be over 32%. This work provides a pathway for further enhancing the power conversion efficiency of perovskite/Si tandem cells.

Optimization design of surface optical characteristics of space solar cells based on transfer matrix method

“…There have also been reports of the use of two or more multilayer ARCs of different materials. [18][19][20][21][22] Xiao X. J. 18) simulated and optimized ARCs using HfO 2 monolayer, SiO 2 /SiC bilayer, and MgF 2 /HfO 2 /SiC three-layer structures by the transfer matrix method.…”

“…The PCE was increased to 17.13%, 18.57%, and 18.85%, respectively. Gopal Krishna et al 19) designed ARCs made of ZnO and Si 3 N 4 on the surface of the perovskite and silicon layers of tandem solar cells, respectively. They optimized the structural parameters of the cell materials and achieved a photoelectric efficiency of over 32%.…”

Fluorene- and fluorenone-based molecules as electron-transporting SAMs for photovoltaic devices

“…19 Thus, various strategies of designing small naphthalene and perylene diimide molecules were developed; however, insufficient photovoltaic properties have hindered their broader application. 20…”