Controllable and white upconversion luminescence in BaYF(5):Ln(3+) (Ln = Yb, Er, Tm) nanocrystals
文献类型：期刊论文
| 作者 | Zhang CM ; Ma PA ; Li CX ; Li GG ; Huang SS ; Yang DM ; Shang MM ; Kang XJ ; Lin J |
| 刊名 | journal of materials chemistry
 |
| 出版日期 | 2011 |
| 卷号 | 21期号:3页码:717-723 |
| 关键词 | OPTICAL SPECTROSCOPY HYDROTHERMAL PROCESS GD2O3 NANOCRYSTALS LAF3 NANOPARTICLES ENERGY-TRANSFER LIGHT EMISSION BLUE NANOMATERIALS PHOSPHORS |
| ISSN号 | 0959-9428 |
| 通讯作者 | lin j |
| 中文摘要 | bayf(5):yb(3+), er(3+), tm(3+) nanocrystals have been successfully synthesized via a hydrothermal process. sem and tem images indicate that the size of the nanocrystals is about 20 nm. under the excitation of a 980 nm single-wavelength diode laser, bayf(5):er(3+) nanocrystals give strong green upconversion (uc) emission centered at 523 and 541 nm, which is assigned to (2)h(11/2) -> (4)i(15/2) and (4)s(3/2) -> (4)i(15/2) transitions of er(3+), respectively. when yb(3+) is codoped in bayf(5) er(3+), red emission around 652 nm can be observed in the emission spectrum. this emission can be assigned to the (4)f(9/2) -> (4)i(15/2) transition of er(3+). the intensity ratio of the green luminescence to the red luminescence decreases with increasing yb3+ concentration in bayf(5):yb(3+), er(3+) nanocrystals. the blue uc emissions of bayf(5):yb(3+), tm(3+) nanocrystals appeared near 464 and 480 nm and are assigned to the (1)d(2) -> (3)f(4) and (1)g(4) -> (3)h(6) transitions of tm(3+), respectively. based on the generation of red, green, and blue emissions, the bayf(5):yb(3+), er(3+), tm(3+) nanocrystals can produce different colors, including white, by controlling the doping concentration of yb(3+) in the bayf(5) nanocrystals. the bayf(5):40%yb(3+), 0.5%er(3+), 0.5%tm(3+) nanocrystals show proper intensities of blue, green, and red emissions, which result in the production of white light (cie: x = 0.346, y = 0.336). |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| 公开日期 | 2012-06-11 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/44974]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhang CM,Ma PA,Li CX,et al. Controllable and white upconversion luminescence in BaYF(5):Ln(3+) (Ln = Yb, Er, Tm) nanocrystals[J]. journal of materials chemistry,2011,21(3):717-723. |
| APA | Zhang CM.,Ma PA.,Li CX.,Li GG.,Huang SS.,...&Lin J.(2011).Controllable and white upconversion luminescence in BaYF(5):Ln(3+) (Ln = Yb, Er, Tm) nanocrystals.journal of materials chemistry,21(3),717-723. |
| MLA | Zhang CM,et al."Controllable and white upconversion luminescence in BaYF(5):Ln(3+) (Ln = Yb, Er, Tm) nanocrystals".journal of materials chemistry 21.3(2011):717-723. |
入库方式： OAI收割
来源：长春应用化学研究所
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