论文部分内容阅读
为了改善目前黄色荧光粉显色指数低的问题,合成了Ce3+,Eu2+掺杂的SrAlSi4N7 黄色荧光粉.其发射光谱中包含了黄绿光(530 nm)、橙黄光(580 nm)和红光(630 nm)三个发光中心,可以将LED 的显色指数提高到88.
SrAlSi4N7荧光粉的结构、形貌及发光性能研究
【摘 要】
：
为了改善目前黄色荧光粉显色指数低的问题,合成了Ce3+,Eu2+掺杂的SrAlSi4N7 黄色荧光粉.其发射光谱中包含了黄绿光(530 nm)、橙黄光(580 nm)和红光(630 nm)三个发光中心,可以将LED 的显色指数提高到88.
【机 构】
：
中科院长春光学精密机械与物理研究所,发光学及应用国家重点实验室,长春,130033
【出 处】
：
第十四届全国发光学学术会议
【发表日期】
：
2016年5期
其他文献
Fenton reaction,which produces hydroxyl radical via reaction cycle of Fe2+ oxidation and Fe3+ reduction with H2O2 1,can be applied to wastewater treatment of recalcitrant organics.However,due to the l
会议
So-called "Cruciforms" are aromatic fluorophores consisting of two perpendicular conjugated π-systems,which form a cross-like structure.They are commonly used as fluorencent materials for optoelectron
会议
Ionones including α-ionone and β-ionone are important chemicals in both perfumery and pharmaceutical industry.Nowadays,commercial ionones are mainly synthesized via cyclization of pseudoionone(PI)cata
会议
Kinetics study of heterogeneous nitration of trifluoromethoxybenzene with mixed acid in microchannel
4-(Trifluoromethoxy)nitrobenzene isthe raw material of trifluoromethoxy aniline,which can be widely used as intermediates in pesticides,pharmaceuticals and liquid crystal material.It is mainly produce
会议
Biomolecules provide an enormous reservoir for developing specific probes for immunoPET to visualize biological processes and detect biomarkers of interests in vivo.Diabodies(dimers of single-chain Fv
会议
2-Ethylhexyl nitrate(2-EHN)is an excellent cetane improver.The main approach to produce 2-EHN is to react 2-ethylhexanol(2-EHO)with nitric acid using concentrated sulfuric acid as catalyst.It is a typ
会议
Flow chemistry in structured microfluidic reactors is providing promising synthetic methodologies and has attracted broad interest at all stages of the design of biocatalytic processes.Its great poten
会议
Nowadays,microreactors are becoming more popular in the biocatalytic field to speed up reactions and improve the controllability,e.g.Roberts et al.[1] used a microreactor to generate and identify the
会议
有机发光材料因其在光电器件、生物影像、生物与化学传感等领域的广泛应用而受到人们的广泛关注。传统发光化合物多具有大的共轭结构单元，而越来越多的研究表明，某些不含传统生色团的化合物，如淀粉、纤维素、聚乙烯亚胺(PEI)、聚丙烯腈等在一定条件下也能发光。
本文采用高温固相法、以H3BO3 作为助熔剂在1500℃下合成了一种新型的农膜用红色转光剂Sr2MgAl22O36：Mn4+,(M)(M=Li+,Na+,K+,Cl-),研究了转光剂的晶体结构、发光特性、紫外-可见吸收,能量传递机理,不同助溶剂的作用以及正一价阳离子(Li+,Na+,K+)的电荷补偿作用。研究表明：Sr2MgAl22O36：Mn4+红色转光剂的发射峰为643 nm 和658 nm,