[11a-W541-1~12] 15.4 III-V-group nitride crystals

[11a-W541-8] Analytical solution for quantum efficiency of radiation considering self-absorption process

〇Hidehiro Asai¹, Kazunobu Kojima², Shigefusa Chichibu², Koichi Fukuda¹ (1.AIST, 2.IMRAM-Tohoku Univ.)

Keywords:Wide gap semiconductor, Quantum efficiency of radiation, Calibration curve

In this study, we theoretically formulate an external quantum efficiency (EQE) of semiconducting crystals, and clarify the relation between the EQE and the density of non-radiative recombination center. Unlike the internal quantum efficiency (IQE), the EQE is strongly affected by the self-absorption process in the crystals.