TY - JOUR
T1 - Precipitation Synthesis and Color-Tailorable Luminescence of α-Zr(HPO4)2
T2 - RE3+(RE = Eu, Tb) Nanosheet Phosphors
AU - Shi, Shikao
AU - Zhang, Xiaojun
AU - Wang, Shuping
AU - Geng, Lina
AU - Zhang, Jianjun
AU - Chen, Wei
N1 - Publisher Copyright:
© 2015 The American Ceramic Society.
PY - 2015/12/1
Y1 - 2015/12/1
N2 - The rare earth (RE = Eu and Tb) ions-doped α-Zr(HPO4)2 (ZrP) nanosheet phosphors were synthesized by direct precipitation method, and their structures and photoluminescence properties were investigated. The results of X-ray diffraction and scanning electron microscopy indicated that the systems of ZrP:RE3+ had similar nanosheet structure except with relatively larger interlayer spacing as compared with pure α-ZrP. Under the excitation of UV light, the ZrP:RE3+ nanosheet phosphors showed red and green emission peaks corresponding to the 5D0→7F2 transition of Eu3+ and the 5D4→7F5 transition of Tb3+, respectively. After Eu3+ and Tb3+ were co-doped in ZrP host, not only the red and green emission peaks were simultaneously observed, but also the luminescent intensity and fluorescence lifetimes of Tb3+ were gradually decreased with the increase in Eu3+-doping concentration, which implied the energy transfer from Tb3+ to Eu3+ happened. It was deduced that the energy transfer from Tb3+ to Eu3+ occurred via exchange interaction. Through optimization to the samples, a nearly white-light emission with the color coordinate (0.322, 0.263) was achieved under 377 nm excitation. The ZrP:RE3+ nanosheet phosphors may be a potential color-tailorable candidate for fabricating optoelectronic devices such as electroluminescence panels.
AB - The rare earth (RE = Eu and Tb) ions-doped α-Zr(HPO4)2 (ZrP) nanosheet phosphors were synthesized by direct precipitation method, and their structures and photoluminescence properties were investigated. The results of X-ray diffraction and scanning electron microscopy indicated that the systems of ZrP:RE3+ had similar nanosheet structure except with relatively larger interlayer spacing as compared with pure α-ZrP. Under the excitation of UV light, the ZrP:RE3+ nanosheet phosphors showed red and green emission peaks corresponding to the 5D0→7F2 transition of Eu3+ and the 5D4→7F5 transition of Tb3+, respectively. After Eu3+ and Tb3+ were co-doped in ZrP host, not only the red and green emission peaks were simultaneously observed, but also the luminescent intensity and fluorescence lifetimes of Tb3+ were gradually decreased with the increase in Eu3+-doping concentration, which implied the energy transfer from Tb3+ to Eu3+ happened. It was deduced that the energy transfer from Tb3+ to Eu3+ occurred via exchange interaction. Through optimization to the samples, a nearly white-light emission with the color coordinate (0.322, 0.263) was achieved under 377 nm excitation. The ZrP:RE3+ nanosheet phosphors may be a potential color-tailorable candidate for fabricating optoelectronic devices such as electroluminescence panels.
UR - http://www.scopus.com/inward/record.url?scp=84955169761&partnerID=8YFLogxK
U2 - 10.1111/jace.13811
DO - 10.1111/jace.13811
M3 - Article
AN - SCOPUS:84955169761
SN - 0002-7820
VL - 98
SP - 3836
EP - 3841
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
IS - 12
ER -