State Key Laboratory of Luminescent Materials and Devices, and Institute of Optical Communication Materials, South China University of Technology, Guangzhou 510641, PR China; School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, PR China.
State Key Laboratory of Luminescent Materials and Devices, and Institute of Optical Communication Materials, South China University of Technology, Guangzhou 510641, PR China.
Spectrochim Acta A Mol Biomol Spectrosc. 2014 Mar 25;122:343-7. doi: 10.1016/j.saa.2013.10.078. Epub 2013 Nov 6.
A yellow-emitting Na2CaP2O7:Mn(2+)phosphors have been synthesized by solid state reaction. The crystal structure, photoluminescence properties as well as concentration quenching mechanism have been investigated. The (4)T1-(6)A1 emission of Mn(2+)in Na2CaP2O7 phosphor ranges from 500 to 650 nm and exhibits a red shift while increasing the Mn(2+)concentration. The crystal field strength is calculated based on the combination of excitation spectrum and Tanabe-Sugano diagram. The chromaticity coordinates of Na2CaP2O7:Eu(2+), Mn(2+)phosphors were discussed in order to develop the potential application in white light-emitting diodes (LEDs).
通过固相反应合成了一种发射黄光的 Na2CaP2O7:Mn(2+)荧光粉。研究了其晶体结构、荧光性能以及浓度猝灭机制。Na2CaP2O7 荧光粉中 Mn(2+)的(4)T1-(6)A1 发射范围为 500 至 650nm，并随着 Mn(2+)浓度的增加而发生红移。基于激发光谱和 Tanabe-Sugano 图的组合，计算了晶体场强度。讨论了 Na2CaP2O7:Eu(2+)，Mn(2+)荧光粉的色度坐标，以期开发其在白光发光二极管（LED）中的潜在应用。
