Simplified Method of Classification and Extraction of Physical Parameters of Dye-sensitized Solar Cells

Abstract

Dye-Sensitized solar cells (DSSCs) are a promising alternative to traditional silicon-based photovoltaics due to their cost-effectiveness and efficiency under low-light conditions. In this paper, a simplified non-iterative analytical method hinged on 1-diode/2-resistors electric equivalent circuit model neglecting either series or parallel resistor is employed to extract model coefficients/parameters of a total of 15 fabricated dye-sensitized solar cells. This method despite its simplicity reveals model coefficients extracted from experimental characteristic points were used to calculate the model parameters required to describe the behaviour of PV modules. In addition, a series to parallel ratio (SPR) criterion is used to classify 15 DSSCs into two classes namely class SPR ≥1 and class SPR<1. According to the SPR classification, the results show that 11 (73%) of the DSSCs belong to the class SPR≥1 and 4 (27 %) to the class SPR<1.