Modelling electroluminescence in insulating polymers under sinusoidal stress: Effect of applied voltage, frequency and offset

Abstract

Recently, a charge transport model allowing the description of electroluminescence in polyethylene films under AC stress has been developed. The fluid model incorporates bipolar charge injection/extraction, transport and recombination. The model has been very successful in explaining the timedependence of EL under 50 Hz sinusoidal, triangular and square voltage waveforms. In this work we discuss experimental measurements and simulations using different frequencies of the sinusoidal stress, voltage amplitude and offset.

Modelling the Effect of Applied Voltage and Frequency on Electroluminescence in Polymeric Material

“…Several researchers [7]- [9] have developed a mathematical model associated with EL intensity incorporating these factors in order to observe the process of electrical aging in insulating material. It is to the interest of this study to develop a mathematical model relating the light emission data and the factors contributing to it through the aid of Dimensional Analysis method.…”

Modelling the Effect of Applied Voltage and Frequency on Electroluminescence in Polymeric Material

“…However, the characteristics of the EL emission can be affected by several factors such as applied voltage, applied frequency, ageing material and types of material used in a particular study. Several researchers [7]- [9] have developed a mathematical model associated with EL intensity incorporating these factors in order to observe the process of electrical aging in insulating material. It is to the interest of this study to develop a mathematical model relating the light emission data and the factors contributing to it through the aid of Dimensional Analysis method.…”