Luminescence and energy transfer in a color tunable CaY4(SiO4)3O:Ce3+, Mn2+, Tb3+ phosphor for application in white LEDs

被引:11
作者
Wang, Lili [1 ]
Moon, Byung Kee [1 ]
Park, Sung Heum [1 ]
Kim, Jung Hwan [2 ]
Shi, Jinsheng [3 ]
Kim, Kwang Ho [4 ]
Jeong, Jung Hyun [1 ]
机构
[1] Pukyong Natl Univ, Dept Phys, Busan 608737, South Korea
[2] Dong Eui Univ, Dept Phys, Busan 614714, South Korea
[3] Qingdao Agr Univ, Dept Chem & Pharmaceut Sci, Qingdao 266109, Peoples R China
[4] Pusan Natl Univ, Sch Mat Sci & Engn, Busan 609735, South Korea
基金
新加坡国家研究基金会;
关键词
MN2+-ACTIVATED PHOSPHORS; ELECTRONIC STATES; PHOTOLUMINESCENCE; CE3+;
D O I
10.1039/c6ra11263c
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A Ce3+/Mn2+/Tb3+ co-activated CaY4(SiO4)(3)O phosphor was prepared through high temperature solid state reaction process. By means of dielectric theory of chemical bonding for complex crystals, covalence of chemical bonds in CaY4(SiO4)(3)O was calculated. Blue emission from Ce3+ in different crystallographic cation sites was discussed quantitatively based on the calculation results. Dual energy transfer of Ce3+ -> Mn2+ and Ce3+ -> Tb3+ occurs and color tunable emission can be realized by modulation of their relative PL intensity. Energy transfer efficiency has been investigated and the process has been demonstrated to be a resonant type via a dipole-quadrupole mechanism. Critical distance R-c calculated through quenching concentration method and spectral overlap route is 7.23 and 7.55 angstrom, respectively. As-obtained samples show color tunable emission and the corresponding CIE chromaticity coordinates were given. White light with color coordinates (0.3339, 0.3055) and (0.3553, 0.3338), close to those of the ideal, was realized under lower energy UV light. All results show CaY4(SiO4)(3)O: Ce3+, Mn2+, Tb3+ phosphor could be a promising candidate for UV chip pumped light emitting diodes.
引用
收藏
页码:79317 / 79324
页数:8
相关论文
共 29 条
[1]  
ANTIPENKO BM, 1970, OPT SPECTROSC-USSR, V29, P177
[2]  
BLASSE G, 1969, PHILIPS RES REP, V24, P131
[3]   ENERGY TRANSFER IN OXIDIC PHOSPHORS [J].
BLASSE, G .
PHYSICS LETTERS A, 1968, A 28 (06) :444-&
[4]   An intense green emitting LiSrPO4:Eu2+, Tb3+ for phosphor-converted LED [J].
Chen, Yan ;
Wang, Jing ;
Zhang, Xinguo ;
Zhang, Gongguo ;
Gong, Menglian ;
Su, Qiang .
SENSORS AND ACTUATORS B-CHEMICAL, 2010, 148 (01) :259-263
[5]   Preparation and Photoluminescence Properties of Novel Color-Tunable MgY4Si3O13:Ce3+, Tb3+Phosphors for Ultraviolet Light-Emitting Diodes [J].
Chung, Hau-Yun ;
Lu, Chung-Hsin ;
Hsu, Chia-Hao .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2010, 93 (07) :1838-1841
[6]   A THEORY OF SENSITIZED LUMINESCENCE IN SOLIDS [J].
DEXTER, DL .
JOURNAL OF CHEMICAL PHYSICS, 1953, 21 (05) :836-850
[7]  
Fedorov N. F., 1975, Inorganic Materials, V11, P1137
[8]   Oxonitridosilicate Y10(Si6O22N2)O2:Ce3+,Mn2+ Phosphors: A Facile Synthesis via the Soft-Chemical Ammonolysis Process, Luminescence, and Energy-Transfer Properties [J].
Geng, Dongling ;
Lian, Hongzhou ;
Shang, Mengmeng ;
Zhang, Yang ;
Lin, Jun .
INORGANIC CHEMISTRY, 2014, 53 (04) :2230-2239
[9]   Luminescence properties and energy transfer in La6Ba4(SiO4)6F2:Ce3+,Tb3+ phosphors [J].
Guo, Qingfeng ;
Liao, Libing ;
Xia, Zhiguo .
JOURNAL OF LUMINESCENCE, 2014, 145 :65-70
[10]   Color-Tunable, Single Phased MgY4Si3O13: Ce3+, Mn2+ Phosphors with Efficient Energy Transfer for White-Light-Emitting Diodes [J].
Hsu, Chia-Hao ;
Das, Subrata ;
Lu, Chung-Hsin .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2012, 159 (05) :J193-J199