| abstract |
Offer can be sent out wide fluorescence spectrum by wide band excited by visible light and be sent out the new fluorophor of near infrared light with high intensity.Propose a kind of fluorophor, which is characterized in that it is the oxide containing Ca, Cu and Si, and aforementioned elements is containing molar ratio：0.15≤Ca/Si<0.25 and 0.13≤Cu/Si<0.25. |