| 1. | Xrd patterns , excitation spectra , emission spectra , photo - stimulated emission spectra , photo - stimulated emission decay curves and thermo - luminescence spectra have been measured on the samples 对样品进行了x射线衍射分析( xrd ) 、激发光谱、发射光谱、光激励发光光谱、光激励发光衰减和热释光谱测定。 |