Enhanced red-emitting phosphor Na2Ca3Si2O8:Eu3+ by charge compensation
Enhanced red-emitting phosphor Na2Ca3Si2O8:Eu3+ by charge compensation
复制标题
电荷补偿增强型红光荧光粉 Na2Ca3Si2O8:Eu3
DOI：
10.1007/s10854-016-6183-9
复制
发表时间：
2017-04-01
影响因子：
2.8
通讯作者：
Hu, Yihua
中科院分区：
文献类型：
--
作者：
Fu, Yinrong;Zhang, Shaoan;Hu, Yihua
采用固相反应合成了一系列新型发红光的Na2Ca3 - x Si2O8:xEu（3+）荧光粉。该荧光粉能较强地吸收395 nm光，并具有良好的色纯度和红色发光。对Na2Ca3Si2O8:Eu3+的激发和发射光谱性质进行了表征。研究了Na2Ca3Si2O8:Eu3+的自补偿和碱金属离子电荷补偿方法（2Ca(2+)-> Eu3+ + M+, M = Li+, Na+, K+），发现可以大大增强红色发射的发光强度，并显示出比商用Y(2)0(3)S:Eu3+更优越的发光性能。本研究表明，高效电荷补偿荧光粉是w- led发红荧光粉的理想选择。
A series of novel red-emitting Na2Ca3 - x Si2O8:xEu(3+) phosphors were synthesized by solid state reactions. The phosphors can strongly absorb 395 nm light, and show red emission with a good color purity. The excitation and emission spectra properties of Na2Ca3Si2O8:Eu3+ were characterized. Na2Ca3Si2O8:Eu3+ with self-compensated and alkali metal ions charge compensated approaches (2Ca(2+)-> Eu3+ + M+, M = Li+, Na+, K+) have investigated, which found that the red emission of luminescent intensity can be greatly enhanced, and shows superior luminescent property to the commercial Y(2)0(3)S:Eu3+. The present work implies that the efficient charge compensated phosphors are promising candidates as red-emitting phosphor for w-LEDs.