IEC TS 63109:2022规定了一种通过定量分析电致发光(EL)图像来测量光伏电池和模块的二极管理想因子的方法。该文献提供了术语二极管理想因子n的定义，其为电流的自然对数的增量比作为所施加电压的函数的倒数，其与填充因子FF相关，并且可用作表示具有其他关键参数开路电压Voc和短路电流Isc的光伏电池和模块的输出效率的有效指标。

IEC TS 63109:2022 specifies a method to measure the diode ideality factor of photovoltaic cells and modules by quantitative analysis of electroluminescence (EL) images. This document provides a definition of the term diode ideality factor n, as the inverse of increment ratio of natural logarithm of current as a function of applied voltage, which is related to the fill factor FF, and is useful as an effective indicator to represent the output efficiency of photovoltaic cells and modules with the other key parameters open circuit voltage Voc and short circuit current Isc.