Department of Functional Materials Science;
Saitama University;
Saitama;
Japan;
Department of Electronics and Communication Engineering;
Hajee Mohammad Danesh Science and Technology University;
Dinajpur;
Bangladesh;
Department of Applied Physics and Electronic Engineering;
University of Rajshahi;
Rajshahi;
Bangladesh;
Department of Electrical and Electronic Engineering;
University of Rajshahi;
Rajshahi;
Bangladesh;
N-Type; GaN; Two-Wavelength; Excited; Photoluminescence; Nonradiative; Recombination; Center; Recombination; Model;