Uniform colloidal alkaline earth metal fluoride nanocrystals: nonhydrolytic synthesis and luminescence properties.
作者： Zewei Quan , Dongmei Yang , Piaoping Yang , Xiaoming Zhang , Hongzhou Lian
DOI: 10.1021/IC8014207
关键词:
摘要: In this paper, we present a facile and general synthetic route to high-quality alkaline earth metal fluoride (AEF2, AE = Ca, Sr, Ba) nanocrystals CaF2:Tb(3+) based on the thermal decomposition of corresponding trifluoroacetate precursors in hot oleylamine. X-ray diffraction, transmission electron microscopy, thermogravimetric differential analysis, Fourier transform infrared spectra, photoluminescence kinetic decays were employed characterize samples. The use single-source plays an important role formation AEF 2 nanocrystals, process is demonstrated detail. obtained AEF2 are nearly monodisperse size highly crystalline, they can be well dispersed nonpolar solvents form stable clear colloidal solutions, which all display purple emissions under ultraviolet excitation due numerous surface defects with large surface/volume ratios. Furthermore, demonstrate feasibility introducing Tb(3+) ions into CaF2 host via method, shows strong green emission characteristic (5)D4-(7)F(J) (J 3, 4, 5, 6) ions, potentially used as labels for biological molecules.
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Jan W. Stouwdam, Frank C. J. M. van Veggel, Near-infrared Emission of Redispersible Er3+, Nd3+, and Ho3+ Doped LaF3 Nanoparticles Nano Letters. ,vol. 2, pp. 733- 737 ,(2002) , 10.1021/NL025562Q
Xiaogang Peng, Liberato Manna, Weidong Yang, Juanita Wickham, Erik Scher, Andreas Kadavanich, A. P. Alivisatos, Shape control of CdSe nanocrystals Nature. ,vol. 404, pp. 59- 61 ,(2000) , 10.1038/35003535
Xiangfeng Duan, Yu Huang, Yi Cui, Jianfang Wang, Charles M. Lieber, Indium phosphide nanowires as building blocks for nanoscale electronic and optoelectronic devices Nature. ,vol. 409, pp. 66- 69 ,(2001) , 10.1038/35051047
D Y Kong, Z L Wang, C K Lin, Z W Quan, Y Y Li, C X Li, J Lin, Biofunctionalization of CeF3:Tb3+ nanoparticles Nanotechnology. ,vol. 18, pp. 075601- ,(2007) , 10.1088/0957-4484/18/7/075601
N. Sata, K. Eberman, K. Eberl, J. Maier, Mesoscopic fast ion conduction in nanometre-scale planar heterostructures Nature. ,vol. 408, pp. 946- 949 ,(2000) , 10.1038/35050047
M. Yu, J. Lin, J. Fu, H. J. Zhang, Y. C. Han, Sol–gel synthesis and photoluminescent properties of LaPO4:A (A = Eu3+, Ce3+, Tb3+) nanocrystalline thin films J. Mater. Chem.. ,vol. 13, pp. 1413- 1419 ,(2003) , 10.1039/B302600K
Andrzej J Wojtowicz, Rare-earth-activated wide bandgap materials for scintillators Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. ,vol. 486, pp. 201- 207 ,(2002) , 10.1016/S0168-9002(02)00703-9
Gejihu De, Weiping Qin, Jisen Zhang, Jishuang Zhang, Yan Wang, Chunyan Cao, Yang Cui, Synthesis and photoluminescence of single crystals europium ion-doped BaF2 cubic nanorods Journal of Solid State Chemistry. ,vol. 179, pp. 955- 958 ,(2006) , 10.1016/J.JSSC.2005.12.027
Ya-Wen Zhang, Xiao Sun, Rui Si, Li-Ping You, Chun-Hua Yan, Single-crystalline and monodisperse LaF3 triangular nanoplates from a single-source precursor. Journal of the American Chemical Society. ,vol. 127, pp. 3260- 3261 ,(2005) , 10.1021/JA042801Y
Jin Joo, Hyon Bin Na, Taekyung Yu, Jung Ho Yu, Young Woon Kim, Fanxin Wu, Jin Z. Zhang, Taeghwan Hyeon, Generalized and facile synthesis of semiconducting metal sulfide nanocrystals. Journal of the American Chemical Society. ,vol. 125, pp. 11100- 11105 ,(2003) , 10.1021/JA0357902