RESEARCH PAPER |
|
|
|
|
|
Preparation and Luminescence Property of Er3+ and Yb3+ Co-doped NaGd(WO4)2 Nanocrystal |
YU Xiaochen, ZHANG Dandan, LI Zhe, WANG Gaokai, GAO Menglei, DUAN Li, JIANG Ziqiang, WANG Xingang, ZHAO Peng
|
School of Materials Science and Engineering, Chang’an University, Xi’an 710064 |
|
|
Abstract The Er3+/Yb3+ co-doped NaGd(WO4)2 powder were synthesized by the hydrothermal method. The effects of different complexing agents and hydrothermal temperature on morphology and structure of the samples were studied. The visible and near infrared emission spectra of the co-doped NaGd(WO4)2 powders with various Er3+ ion concentrations were measured. The spectroscopic results show intense green emission bands, weak red emission and near infrared emission bands for the co-doped samples located at 530 nm, 552 nm, 656 nm and 1 532 nm under 980 nm LD excitation, which correspond to the 2H11/2/4S3/2→4I15/2,4F9/2→4I15/2 and 4I13/2→4I15/2 level transition of Er3+, respectively. With the increase of Er3+ concentration, the intensities of the upconversion and near infrared emission show a trend of increasing first and then decreasing. The most intense excitation and emission peaks are centered at 378 nm and 552 nm. According to the relationship between exciting power and luminous intensity, the red light and green light all belong to two-photon absorption processes, but the red light also contains a certain single photon absorption component.
|
Published: 25 April 2017
Online: 2018-05-02
|
|
|
|
1 Downing E, Hesselink L, Ralston J, et al. A three-color, solid-state, three-dimensional display [J]. Science,1996,273(5279):1185. 2 Chen G Y, Zhang Y G, Somesfalean G, et al. Two-color upconversion in rare-earth-ion-doped ZrO2 nanocrystals [J]. Appl Phys Lett,2006,89(16):163105. 3 Wang S,Cui C E, et al. Preparation of red long afterglow luminescent material Sr3Al2O6∶Eu2+, Dy3+ by orthogonal design method [J].J Chongqing Institute Technol: Nat Sci Ed,2009,23(1):174(in Chinese). 王森,崔彩娥,等.正交设计法优化红色长余辉发光材料Sr3Al2O6∶Eu2+,Dy3+的制备工艺[J]. 重庆工学院学报:自然科学版,2009,23(1):174. 4 Yu X C,Hao A B,Liu B,et al.Luminescent properties of Er3+/Yb3+ co-doped phosphate glass ceramics [J].Mater Rev:Res,2013,27(12):25(in Chinese). 于晓晨, 郝爱斌, 刘波,等. Er3+/Yb3+共掺磷酸盐玻璃陶瓷的发光性质研究 [J]. 材料导报:研究篇,2013,27(12):25. 5 Mahalingam V, Thirumalai J. Photoluminescence, Judd-ofelt analysis and photometric characterization of Eu3+, activated Ca0.5Gd-(WO4)2, red phosphor [J]. Mater Sci Mat Electron,2016,27(9):1. 6 Zhang G, Song F, Ming C, et al. Photoluminescence properties and pump-saturation effect of Er3+/Yb3+ co-doped Y2Ti2O7, nanocrystals [J].J Lumin,2012,132(3):774. 7 Ivaturi A, Macdougall S K W, Martínrodríguez R, et al. Optimizing infrared to near infrared upconversion quantum yield of β-NaYF4∶Er3+ in fluoropolymer matrix for photovoltaic devices [J]. Appl Phys,2013,114(1):013505. 8 Liao J,Qiu B,Lai H. Synthesis and luminescence properties of Tb3+∶NaGd(WO4) 2 novel green phosphors [J].J Lumin,2009,129(129):668. 9 Wang J W, Mei Y, Tan T Y, et al.Effects of Yb3+/Er3+ doping ratio on upconversion branching ratio of BaTiO3∶Yb3+, Er3+ nanocrystal [J]. Chin J Rare Earths,2015,33(1):24(in Chinese). 王绩伟, 梅勇, 谭天亚, 等. Yb3+/Er3+掺杂比例对BaTiO3∶Yb3+,Er3+纳米晶上转换发光分支比的影响 [J]. 中国稀土学报,2015,33(1):24. 10 Huang J H, Gong X H, Chen Y J, et al. Polarized spectral properties of Er3+, ions in NaGd(WO4)2 crystal [J]. Appl Phys B,2007,89(1):73. 11 Xia Z, Zhou W, Du H, et al. Synthesis and spectral analysis of Yb3+/Tm3+/Ho3+-doped Na0.5Gd0.4WO4 phosphor to achieve white upconversion luminescence [J]. Mater Res Bull,2010,45(9):1199. 12 Yu X, Gao M, Li J, et al. Near infrared to visible upconversion emission in Er3+/Yb3+ co-doped NaGd(WO4)2 nanoparticles obtained by hydrothermal method [J].J Lumin,2014,154(154):111. 13 Li H,Yang K S,Qi N,et al. The preparation and luminescent pro-perties of Yb3+/Tm3+ doped NaY(WO4)2 nanocrystals [J].J Chinese Inorg Chem,2012,28 (2):221(in Chinese). 李慧,杨魁胜,祁宁,等. Yb3+/Tm3+掺杂的NaY(WO4)2纳米晶的制备及发光特性 [J]. 无机化学学报,2012,28(2):221. 14 Faure N, Borel C, Couchaud M, et al. Optical properties and laser performance of neodymium doped scheelites CaWO4 and NaGd-(WO4)2[J]. Appl Phys B,1996,63(6):593. 15 You H Y,Liao J S,Wen H R,et al. Photoluminescent properties of KGd (WO4)2∶Eu3+ red phosphor prepared by sol-gel method [J].Chin J Rare Earths,2011,29(2):178(in Chinese). 游航英, 廖金生, 温和瑞,等. 溶胶-凝胶法合成KGd(WO4)2∶Eu3+红色荧光粉及其发光性质的研究 [J]. 中国稀土学报,2011,29(2):178. 16 Haiyan D U,Lan Y,Xia Z,et al. Upconversion luminescence of Yb3+/Ho3+/Er3+ /Tm3+ co-doped KGd(WO4)2 powders [J]. Rare Earths,2010,28(5):697. 17 Chang S L, Aleksandrovsky A, Molokeev M, et al. Microwave sol-gel synthesis and upconversion photoluminescence properties of CaGd2(WO4)4∶Er3+/Yb3+, phosphors with incommensurately modulated structure [J]. Solid State Chem,2015,228:160. 18 Song F, Han L, Tan H, et al. Spectral performance and intensive green upconversion luminescence in Er3+/Yb3+-codoped NaY-(WO4)2 crystal [J]. Opt Commun,2006,259(1):179. 19 Yang K S,Bai Xu,Gao Y M,et al. Preparation and luminescence properties of ZnWO4∶Er3+, Yb3+ nanorods [J].J Inorg Chem,2010,26(6):1078(in Chinese). 杨魁胜,白旭,高艳敏,等. ZnWO4∶Er3+,Yb3+纳米棒的制备及发光性能 [J]. 无机化学学报,2010,26(6):1078. 20 De la Rosa E, Salas P,Desirena H,et al.Strong green upconversion emission in ZrO2∶Yb3+-Ho3+ nanocrystals[J].Appl Phys Lett,2005,87:241912. 21 Song F, Han L, Tan H, et al. Spectral performance and intensive green upconversion luminescence in Er3+/Yb3+-codoped NaY-(WO4)2 crystal [J]. Opt Commun,2006,259(1):179.
|
|
|
|