scholarly journals Opal-Like Photonic Structuring of Perovskite Solar Cells Using a Genetic Algorithm Approach

2020 ◽  
Vol 10 (5) ◽  
pp. 1783 ◽  
Author(s):  
Michaël Lobet ◽  
Alexandre Mayer ◽  
Anthony Maho ◽  
Pierre Piron ◽  
Jennifer Dewalque ◽  
...  
Keyword(s):  
Genetic Algorithm ◽  
Solar Cells ◽  
Active Layer ◽  
Internal Quantum Efficiency ◽  
Perovskite Solar Cells ◽  
Optimal Combination ◽  
Light Management ◽  
Genetic Algorithm Approach ◽  
Angular Dependency ◽  
Absorbing Layer

Light management is an important area of photovoltaic research, but little is known about it in perovskite solar cells. The present work numerically studies the positive effect of structuring the photo-active layer of perovskite material. This structuration consists of a hybrid absorbing layer made of an uniform part and an opal-like part. A genetic algorithm approach allows us to determine the optimal combination among more than 1.4 × 10 9 potential combinations. The optimal combination provides an internal quantum efficiency of 98.1%, nearly 2% higher than for an equivalent unstructured photo-active layer. The robustness of the optimum against potential experimental deviations, as well as the angular dependency of the proposed structure, are examined in the present study.

scholarly journals Optical Simulation of Planar CH3NH3PbI3 Perovskite Solar Cells

2019 ◽  
Vol 35 (3) ◽  
Author(s):  
Nguyen Duc Cuong
Keyword(s):  
Solar Cells ◽  
Active Layer ◽  
Internal Quantum Efficiency ◽  
Short Circuit ◽  
Perovskite Solar Cells ◽  
Optical Simulation ◽  
Device Structure ◽  
Experimental Values ◽  
Transmission And Reflection ◽  
Good Agreement

In this work, optical simulation results of planar CH3NH3PbI3 solar cells using a MATLAB script developed by McGehee’s group (Stanford University) will be presented. The device structure is FTO/HEL/AL/ETL/LiF/Al, where HEL is a hole-extraction layer, AL is an active layer (CH3NH3PbI3), and EEL is an electron-extraction layer. This MATLAB script uses the transfer matrix method, where transmission and reflection are calculated for each interface in the stack as well as attenuation in each layer. The wavelength-dependent optical constants (n and k) of each layer were measured by spectroscopic ellipsometry (SE). The exciton generation rates within the active layer were calculated and with an assumption that the Internal Quantum Efficiency (IQE) equals 100% at all wavelengths, the predicted short-circuit currents (JSC) were also estimated. These results show a good agreement with the experimental values of JSC measured on real devices.

Energy yield of perovskite solar cells: Influence of location, orientation, and external light management

2022 ◽  
Vol 234 ◽  
pp. 111421
Author(s):  
Benjamin Lipovšek ◽  
Marko Jošt ◽  
Špela Tomšič ◽  
Marko Topič
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Energy Yield ◽  
Light Management

Device Simulation of Perovskite/Silicon Tandem Solar Cell with Antireflective Coating

2021 ◽  
Author(s):  
Gopal Krishna Burra ◽  
Dhriti Sundar Ghosh ◽  
Sanjay Tiwari
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Silicon Nitride ◽  
Optical Design ◽  
Perovskite Solar Cells ◽  
Photon Flux ◽  
Tandem Solar Cell ◽  
Tandem Solar Cells ◽  
In Series ◽  
Light Management

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 film-based 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.

scholarly journals Improved light management in planar silicon and perovskite solar cells using PDMS scattering layer

2017 ◽  
Vol 173 ◽  
pp. 59-65 ◽  
Author(s):  
Salman Manzoor ◽  
Zhengshan J. Yu ◽  
Asad Ali ◽  
Waqar Ali ◽  
Kevin A. Bush ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Scattering Layer ◽  
Planar Silicon ◽  
Light Management
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