Modeling the p-n junction i-u characteristic for an accurate calibration-free temperature measurement

The p–n junction i–u characteristic model is decisive for the accuracy enhancement of calibration-free temperature measurement. In this paper, we give a survey of adapted physically-based p–n junction i–u characteristic models, such as the Ebers–Moll2, the Ebers–Moll3, and the Gummel–Poon model. Furthermore, we build new models through polynomial extensions to the fundamental Shockley model. The considered models were investigated with regard to the application of calibration-free temperature measurement. Experimental results show a model improvement with both physically and mathematically-based models.