Numerical analysis with experimental verification to predict outdoor power conversion efficiency of inverted organic solar devices

Abstract

Inverted organic solar cell (IOSC) devices with different volume ratios of In₂S₃ nanoparticles have been studied under local spectral irradiances in Malaysia with respect to that of AM1.5G. The J-V curves of encapsulated IOSC devices were measured outdoor using an Ivium Potentiostat and local spectral irradiances were acquired using an AVANTES spectrometer concurrently. All of the IOSC devices experienced significant improvement in power conversion efficiency (PCE) under the both local sunny and cloudy conditions with respect to the AM 1.5G, by 22-35% and 31-65%, respectively. From spectral analysis, the area under the graph of spectral irradiance in UV-visible region is significantly higher compared to infrared region for both local sunny and cloudy conditions, by 44.6% and 55.9%, respectively, while it is only recorded as 12.9% for AM 1.5G. Last but not the least, we have successfully verified the numerical analysis to predict device performance by comparing the simulated and measured PCE values for different irradiance intensities whereby the prediction of PCE is better under sunny condition with a deviation of 3.4-10.8% compared to cloudy conditions, with deviation of 28.9-30.5%.

Comprehensive Modelling for Analyzing the Power Conversion Efficiency of Polycrystalline Silicon Photovoltaic Device under Indoor Operating Conditions

“…The irradiance of the LED illumination, Iin, can be calculated using the measured spectral irradiance obtained from the AVANTES spectrometer, where the related relationship is presented by equation (5). On the other hand, the spectral responsivity, R(λ) is defined in equation (6).…”

“…In this study, we would like to validate the theoretical model proposed by Chong et al for predicting the performance of PV under different LED intensities. A few parameters were taken as inputs for the model to achieve the prediction, i.e., external quantum efficiency (EQE), J-V curves, and LED spectral irradiances [5][6]. For the validation of the model, the simulated power conversion efficiency (PCE) is compared with actual measurements under indoor conditions.…”

Hydroxymethyl-Functionalized PEDOT-MeOH:PSS for Perovskite Solar Cells

“…The inferior electrical conductivity of the PEDOT:PSS layer also leads to high series resistance, which causes more voltage loss within the PEDOT:PSS HTL . According to the Shockley equation, J sc is influenced by the series resistance and shunt resistance of devices . Therefore, a high series resistance can also lower J sc . ,, Less hole transport efficiency, resulted from the low electrical conductivity and low charge mobility of PEDOT:PSS, could cause hole accumulation and reduce shunt resistances, leading to a low FF in PVSCs …”