Ameliorating Properties of Perovskite and Perovskite–Silicon Tandem Solar Cells via Mesoporous Antireflection Coating Model

Abstract

It is anticipated that perovskite solar cells (PSCs) will overtake other products in the market for next‐generation photovoltaics. The optical loss, however, continues to be a flaw that restricts the photocurrent (Jph) of PSCs. Mesoporous antireflection coatings (ARCs), both monolayer and multilayer, are designed using a combination of the finite element method and equivalent medium theory, and ARCs models are merged with PSCs. In the current work, mesoporous ARCs are made, the optical performance of the device is evaluated using optical modeling, and then the ARCs are integrated into solar cells. The simulation results show that the Jph of planar inverted PSCs can increase to 24.00 mA cm−2 when the front surface of PSCs adopts mesoporous ARC (via parameter optimization and sensible arrangement and combination). An increase of 0.98 mA cm−2 in Jph of PSCs is observed in comparison with flat ARC (23.02 mA cm−2). The strong light transmission and low reflection properties of the mesoporous ARCs are confirmed by the optimized solution. It is important to note that the first fusion of mesoporous and multilayer ARC offers a fresh approach to the development of perovskite and perovskite/silicon tandem solar cells with extremely high efficiency.

Eco-Friendly Boost for Perovskite Photovoltaics: Harnessing Cellulose-Modified SnO2 as a High-Performance Electron Transporting Material

“…In the optical transmittance spectra presented in Figure S6a, it is noteworthy that despite the increasing film thickness up to a concentration of 5 mol %, the NaCMC-SnO 2 films exhibit higher transmittance than the c-SnO 2 film. This phenomenon can be attributed to the lower reflectance in the passivated films. , To further support this assumption, reflectance measurements were also conducted on the films. The reflection spectra shown in Figure S6b confirm that the presence of the NaCMC-SnO 2 layer results in a reduced reflection across the entire wavelength range.…”

“…This phenomenon can be attributed to the lower reflectance in the passivated films. 51,52 To further support this assumption, reflectance measurements were also conducted on the films. The reflection spectra shown in Figure S6b confirm that the presence of the NaCMC-SnO 2 layer results in a reduced reflection across the entire wavelength range.…”

Strain Effects on Flexible Perovskite Solar Cells

“…In recent reports, some researchers employ finite element method (FEM) to simulate the stress distribution in device structures. [ 60 , 61 , 62 , 63 , 64 ] The FEM uses approximate mathematical methods to simulate real physical systems. Through simple and interacting elements, a finite number of unknowns is used to approximate a real system with infinite unknowns.…”

Pure-Phase, Large-Grained Wide-Band-Gap Perovskite Films for High-Efficiency, Four-Terminal Perovskite/Silicon Tandem Solar Cells

“…The perovskite/silicon tandem solar cells mainly include two configurations: monolithically integrated two-terminal and mechanically integrated four-terminal devices. ,, Currently, the record PCEs have reached up to 33.2 and 30.24% for two-terminal and four-terminal perovskite/silicon tandem solar cells, respectively, manifesting that both of them possess enormous potential for practical applications. In particular, the subcells of four-terminal perovskite/silicon tandem solar cells are only mechanically coupled and therefore free from restrictions in terms of their fabrication methods and parameters (e.g., temperature, surface textures, and polarities).…”