Emission Rate Variation and Efficiency Measurement in TiO2 Light Emitting DiodeS.N. Ariffin, N.A.M.A. Hambali, M.H.A. Wahid, M.M. Shahimin, U.K. Sahbudin and N.N.A. SaidiMATEC Web Conf., 78 (2016) 01111DOI: https://doi.org/10.1051/matecconf/20167801111