ML SPECTRA OF GOLD DOPED (Zn, Cd) S MIXED PHOSPHORS

摘要

The present paper reports that the ML spectral distribution of Au doped (Zn, Cd) S mixed phosphors. The measurements were made at room temperature between 4000 3and 7000A0. The ML spectra was recorded on the oscillo scope using a series of filters with different transmission coefficients while the spectral emission curves of the sample were measured at room temperature, between 4000 . and 7000.on the Hitachi spectrometers using long wavelength ultraviolet excitation provided by 150 watt xenon lamp. Since the excitation process depend on mechanical deformation, which is slower than the absorption of photon, the rate of ML will be different from that of PL & EL. ML and PL are examined by comparing their energy relationship. The spectral distribution is found to be similar in ML and PL. Since the PL of phosphors is well known, it is expected that the comparative study of ML with PL will be helpful to understand the process of ML excitation in (Zn, Cd) S mixed phosphors