Influence of irradiation energy and damage coefficient on performance of CH3NH3PI3 photocell

Abstract

An organic–inorganic hybrid perovskite as a light-absorbing layer has become a key material in many laminated-structures used in photon sensing devices. Some of these devices are referred to as Organic–inorganic hybrid perovskite (OIHP)-based devices. In recent days, OIHP applications have sky-rocketed in the world of flexible photo-electronics. Due to the higher radiation tolerances, OIHP-based solar cells have been recommended for terrestrial applications which is an application that require low fabrication costs that combines lightweight materials. However, it has been noticed that when it is used in extra-terrestrial environments, these photo cell devices experience premature failures once they interact with fast multispectral radiations in terrestrial spaces. Due to these premature failures, a similar solar cell from an (OIHP)-based perovskite material of methyl ammonium lead iodide (CH₃NH₃PI₃) was investigated as an observer layer under a multi-spectral simulated illumination. After simulation, data for the expected photocurrent flowing through junction components on a glass substrate coated with a thin layer of Titanium dioxide (TiO ₂) film was obtained. The influence of energy of irradiation on damage coefficients, current density, photovoltage and I–V characteristic profile curves were determined and investigated. Some general common macroscopic parameters for photon sensing were analyzed on three dimensions (3D) to determining the minority charge carriers and their induced photo-voltages with respect to junction recombination velocities. The obtained computed macroscopic parameters were incorporated into the Quite Universal Circuit Simulator software for simulation. It was established that damage coefficient influenced the I–V curve and an accumulation of charge carriers magnifies the probability of plasmons initiating degradation of the absorber layer. The atoms in the CH₃NH₃Pl₃ crystal lattice system uniformly recoils at resonance and transport the maximum charge carriers across the P-N junction capable of creating a significant damage concentrated within a few micrometer ranges on the surface that may even extend between 0.39 to about 1.01 micrometers in size. This paper therefore evaluates the influence of irradiation energy and damage coefficient in a hybrid CH₃NH₃PI₃ mono-facet crystal structure on exposure to multi-spectral illumination at varied irradiation energies.