DocumentCode :
1763457
Title :
Visible Light-Emitting Er 
–Tm –Yb 
Author :
Pandey, Ashutosh ; Dey, Rajeeb ; Pandey, Shishir ; Rai, Vineet Kumar
Author_Institution :
Dept. of Appl. Phys., Laser & Spectrosc. Lab., Dhanbad, India
Volume :
10
Issue :
6
fYear :
2014
fDate :
41791
Firstpage :
494
Lastpage :
499
Abstract :
The Er 3+-Tm 3+-Yb 3+ codoped ZrO 2 phosphor synthesized via chemical co-precipitation technique has been characterized by the X-ray diffraction (XRD) analysis. The upconversion (UC) emission study of present material has been performed upon 980 nm diode laser excitation. The efficient energy transfer between dopants has been found to be responsible in the UC mechanism. The tuning in color of light emitted from the developed phosphor has been noticed by considering concentration as well as power variation. The Correlated Color Temperature (CCT) corresponding to different color coordinates has been calculated. The temperature sensing behavior of developed material has also been explained using fluorescence intensity ratio (FIR) technique.
Keywords :
X-ray diffraction; doping; erbium; fluorescence; materials preparation; phosphors; precipitation (physical chemistry); spectral line intensity; temperature sensors; thulium; ytterbium; zirconium compounds; CCT; FIR technique; UC mechanism; X-ray diffraction analysis; ZrO2:Er,Tm,Yb; chemical co-precipitation technique; codoped phosphor synthesis; color coordinates; correlated color temperature; diode laser excitation; dopants; energy transfer; fluorescence intensity ratio; photonics applications; sensing applications; temperature sensing behavior; tuning; up-conversion emission; visible light emitting; Color; Energy exchange; Energy states; Ions; Materials; Phosphors; Photonics; Lanthanides; co-precipitation; color coordinates; fluorescence intensity ratio; upconversion (UC) luminescence;
fLanguage :
English
Journal_Title :
Display Technology, Journal of
Publisher :
ieee
ISSN :
1551-319X
Type :
jour
DOI :
10.1109/JDT.2014.2305773
Filename :
6739087
Link To Document :
