A Verilog-A/MS Compact Model for the Temperature Dependency of the Open-Circuit Voltage for Integrated Diodes

The open-circuit voltage is a crucial parameter that determines the harvesting capabilities of diodes operating in the photovoltaic regime. It is highly dependent on temperature and illumination which may limit the diode operation in application scenarios with large temperature and illumination variations as space instrumentation. The former dependence has not been modeled in a Hardware Description Language. This work presents a Verilog-A/MS based compact model to study and simulate the phenomenon. Validation of the model was conducted through TCAD simulations across a broad operational spectrum. The results affirm the model’s capability to analyze the impact of temperature fluctuations on solar cell performance accurately.