Upconversion luminescence properties of Mn2+-doped NaYF4:Yb/Er nanoparticles

NaYF4:Yb/Er upconversion nanoparticles doped with Mn2+ were synthesized by hydrothermal method. The upconversion photoluminescence measured by 975 nm continuous wave laser indicates that the as-synthesized samples generated green and red color emission with various intensity ratio ranging from 3.25 to 548.35, which is highly correlative to the dopant concentration of Mn2+. However, there is no red emission enhancement observed in Cu2+-doped NaYF4:Yb/Er nanoparticles.

[1]  G. Blasse,et al.  Energy transfer between Eu3+ ions in a lattice with two different crystallographic sites: Y2O3:Eu3+, Gd2O3:Eu3+ and Eu2O3 , 1987 .

[2]  D. Sarma,et al.  Doping transition metal (Mn or Cu) ions in semiconductor nanocrystals , 2010 .

[3]  Xiaogang Liu,et al.  Photonics: Upconversion goes broadband. , 2012, Nature materials.

[4]  Christopher McRae,et al.  Upconversion luminescence with tunable lifetime in NaYF4:Yb,Er nanocrystals: role of nanocrystal size. , 2013, Nanoscale.

[5]  Xiaogang Liu,et al.  Recent advances in the chemistry of lanthanide-doped upconversion nanocrystals. , 2009, Chemical Society reviews.

[6]  N. Pradhan,et al.  Ultrasmall color-tunable copper-doped ternary semiconductor nanocrystal emitters. , 2011, Angewandte Chemie.

[7]  N. Pradhan,et al.  An alternative of CdSe nanocrystal emitters: pure and tunable impurity emissions in ZnSe nanocrystals. , 2005, Journal of the American Chemical Society.

[8]  Liang Yan,et al.  Red-emitting upconverting nanoparticles for photodynamic therapy in cancer cells under near-infrared excitation. , 2013, Small.

[9]  Wei Huang,et al.  Enhancing solar cell efficiency: the search for luminescent materials as spectral converters. , 2013, Chemical Society reviews.

[10]  Ranjani Viswanatha,et al.  Tunable Infrared Phosphors Using Cu Doping in Semiconductor Nanocrystals: Surface Electronic Structure Evaluation. , 2013, The journal of physical chemistry letters.

[11]  Pralay K. Santra,et al.  Prevention of photooxidation in blue-green emitting Cu doped ZnSe nanocrystals. , 2010, Chemical communications.

[12]  M. Haase,et al.  Highly Efficient Multicolour Upconversion Emission in Transparent Colloids of Lanthanide‐Doped NaYF4 Nanocrystals , 2004 .

[13]  Ququan Wang,et al.  Tunable nonlinear optical absorption in semiconductor nanocrystals doped with transition metal ions , 2012 .

[14]  C. S. Lim,et al.  Simultaneous phase and size control of upconversion nanocrystals through lanthanide doping , 2010, Nature.

[15]  Louis A. Cuccia,et al.  Synthesis of colloidal upconverting NaYF4 nanocrystals doped with Er3+, Yb3+ and Tm3+, Yb3+ via thermal decomposition of lanthanide trifluoroacetate precursors. , 2006, Journal of the American Chemical Society.

[16]  Zhuang Liu,et al.  Upconversion nanophosphors for small-animal imaging. , 2012, Chemical Society reviews.

[17]  Kelly M. Currin,et al.  Optical properties of Nd-doped rare-earth vanadates. , 2010, Applied optics.

[18]  N. Pradhan,et al.  Doping Cu in semiconductor nanocrystals: some old and some new physical insights. , 2011, Journal of the American Chemical Society.

[19]  Jianhua Hao,et al.  PEG modified BaGdF₅:Yb/Er nanoprobes for multi-modal upconversion fluorescent, in vivo X-ray computed tomography and biomagnetic imaging. , 2012, Biomaterials.

[20]  Yun Sun,et al.  Water-stable NaLuF4-based upconversion nanophosphors with long-term validity for multimodal lymphatic imaging. , 2012, Biomaterials.

[21]  Ya-Wen Zhang,et al.  High-quality sodium rare-earth fluoride nanocrystals: controlled synthesis and optical properties. , 2006, Journal of the American Chemical Society.

[22]  Yan Li,et al.  Dopant-controlled synthesis of water-soluble hexagonal NaYF4 nanorods with efficient upconversion fluorescence for multicolor bioimaging , 2010 .

[23]  Frank Caruso,et al.  Biofunctionalization of fluorescent rare-earth-doped lanthanum phosphate colloidal nanoparticles. , 2004, Angewandte Chemie.

[24]  Xiaogang Liu,et al.  Recent Advances in the Chemistry of Lanthanide‐Doped Upconversion Nanocrystals , 2009 .

[25]  Zhuang Liu,et al.  Upconversion nanophosphors for small-animal imaging. , 2012, Chemical Society reviews.

[26]  Yadong Li,et al.  Controlled Synthesis and Luminescence of Lanthanide Doped NaYF4 Nanocrystals , 2007 .

[27]  Mark A Green,et al.  The synthesis of rare earth fluoride based nanoparticles. , 2009, Nanoscale.

[28]  Hong Zhang,et al.  Covalently assembled NIR nanoplatform for simultaneous fluorescence imaging and photodynamic therapy of cancer cells. , 2012, ACS nano.

[29]  Liang Yan,et al.  Mn2+ Dopant‐Controlled Synthesis of NaYF4:Yb/Er Upconversion Nanoparticles for in vivo Imaging and Drug Delivery , 2012, Advanced materials.