TY - GEN
T1 - Enhancement of photoluminescnce properties of y2O 3:Eu3+ nanophosphor by low temperature synthetic method
AU - Hong, Sung Jei
AU - Han, Jeong In
PY - 2006
Y1 - 2006
N2 - In this work, photoluminescence properties of the Y2O 3:Eu3+ nanophosphor was enhanced by newly developed low temperature synthetic method. Distinguished from conventional method using high temperature of 1200°C, the synthetic temperature of the newly developed method can be lowered to 500°C by excluding chloride and nitric acid elements. Therefore, smaller sized nanoparticle could be achieved by lowering the temperature. The nanophosphor showed smaller particle size of 8 nm, and crystal structure of the smaller sized Y2O3:Eu 3+ nanophosphor is mainly cubic crystal with orientation of (222), (440), and (400). In addition, the smaller sized Y2O 3-10wt%Eu3+ nanophosphor synthesized by the low temperature method showed higher degree of crystallization of 11.6 of I (222)/I(511) ratio. Also, the Y2O 3-10wt%Eu3+ nanophosphor showed excellent photoluminescence properties. That is, excitation wavelength was found at 250 nm, and it was the shortest one. As well, the most intensive photoluminescence emission peak could be achieved at 611 nm by using the excitation with shortest wavelength. So, photoluminescence properties could be enhanced by the newly developed low temperature synthetic method.
AB - In this work, photoluminescence properties of the Y2O 3:Eu3+ nanophosphor was enhanced by newly developed low temperature synthetic method. Distinguished from conventional method using high temperature of 1200°C, the synthetic temperature of the newly developed method can be lowered to 500°C by excluding chloride and nitric acid elements. Therefore, smaller sized nanoparticle could be achieved by lowering the temperature. The nanophosphor showed smaller particle size of 8 nm, and crystal structure of the smaller sized Y2O3:Eu 3+ nanophosphor is mainly cubic crystal with orientation of (222), (440), and (400). In addition, the smaller sized Y2O 3-10wt%Eu3+ nanophosphor synthesized by the low temperature method showed higher degree of crystallization of 11.6 of I (222)/I(511) ratio. Also, the Y2O 3-10wt%Eu3+ nanophosphor showed excellent photoluminescence properties. That is, excitation wavelength was found at 250 nm, and it was the shortest one. As well, the most intensive photoluminescence emission peak could be achieved at 611 nm by using the excitation with shortest wavelength. So, photoluminescence properties could be enhanced by the newly developed low temperature synthetic method.
KW - Degree of crystallization
KW - Low temperature synthesis
KW - Nanophosphor
KW - Photoluminescence
KW - Smaller sized particle
KW - YO:Eu
UR - http://www.scopus.com/inward/record.url?scp=50249096182&partnerID=8YFLogxK
U2 - 10.1109/NMDC.2006.4388809
DO - 10.1109/NMDC.2006.4388809
M3 - Conference contribution
AN - SCOPUS:50249096182
SN - 1424405408
SN - 9781424405404
T3 - 2006 IEEE Nanotechnology Materials and Devices Conference, NMDC
SP - 446
EP - 447
BT - 2006 IEEE Nanotechnology Materials and Devices Conference, NMDC
T2 - 2006 IEEE Nanotechnology Materials and Devices Conference, NMDC
Y2 - 22 October 2006 through 25 October 2006
ER -