Enhanced broadband near-infrared luminescence from transparent Yb3+/Ni2+ codoped silicate glass ceramics.
The near-infrared emission intensity of Ni(2+) in Yb(3+)/Ni(2+) codoped transparent MgO-Al(2)O(3)-Ga(2)O(3)-SiO(2)-TiO(2) glass ceramics could be enhanced up to 4.4 times via energy transfer from Yb(3+) to Ni(2+) in nanocrystals. The best Yb(2)O(3) concentration was about 1.00 mol%. For the Yb(3+)/Ni(2+) codoped glass ceramic with 1.00 mol% Yb(2)O(3), a broadband near-infrared emission centered at 1265 nm with full width at half maximum of about 300 nm and lifetime of about 220 mus was observed. The energy transfer mechanism was also discussed.
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.
Botao
B
Wu
Shifeng
S
Zhou
Jian
J
Ruan
Yanbo
Y
Qiao
Danping
D
Chen
Congshan
C
Zhu
Jianrong
J
Qiu
D002516:Ceramics / Q000737:chemistry*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005898:Glass / Q000737:chemistry*; D007259:Infrared Rays; D008029:Lighting / Q000295:instrumentation*; D008163:Luminescent Measurements / Q000295:instrumentation*; D009532:Nickel / Q000737:chemistry*; D017640:Silicates / Q000737:chemistry*; D015018:Ytterbium / Q000737:chemistry*
D017640:Silicates; D009532:Nickel; D015018:Ytterbium