ZnSe Light Emitting Diode Quantum Efficiency and Emission Characterization U.K. Sahbudin, M.H.A. Wahid, P. Poopalan, N.A.M.A. Hambali, M.M. Shahimin, S.N. Ariffin, N.N.A. Saidi and M.M. Ramli MATEC Web Conf., 78 (2016) 01114 Published online: 07 October 2016 DOI: 10.1051/matecconf/20167801114