The PL spectrum excited with 325 nm of He-Cd laser at room temperature revealed a strong and narrow near UV emission band centered at about 383 nm with FWHM about 16 nm and a weaker broad emission band centered at(about) 515 nm with FWHM about 76 nm.

• 绿峰峰值位于515 nm,半峰全宽约为76 nm。