DR AFAZ: "In this research, we tried to provide a complete study of the power generating ... diffusion procedures by using COMSOL multiphysics software for bulk ... 299x ~IC'! (me~_1e, ... electron is excited and an electron-hole pair is generated. ... The next chapter (chapter 3) is related to the electrical modeling of organic solar cells. "
Hijazi, Nour, Dhilippan Panneerselvam, and M. Z. Kabir. "Electron–hole pair creation energy in amorphous selenium for high energy photon excitation." Journal of Materials Science: Materials in Electronics 29, no. 1 (2018): 486-490.