| Status | 已發表Published |
| Solvothermal route to colloidal upconverting NaYF 4 : Yb 3 +/Er 3 Î and Yb 3 +/Tm 3 + nanocrystals | |
| Chen S.2; Wang S.2; Zhang J.2; An L.2 | |
| 2009-03-01 | |
| Source Publication | Journal of Nanoscience and Nanotechnology
 |
| Volume | 9 |
| Issue | 3 |
| Pages | 1942-1946 |
| Abstract | Monodispersed nanocrystals of NaYF : Yb +, Er /Tm that exhibited a high luminescence intensity were chemically synthesized by a non-aqueous solvothermal approach. These nanocrystals were easily dispersed in non-polar solvent and subsequently formed a transparent colloidal solution. Under 980 nm NIR excitation, green and blue emissions were observed from colloidal solutions of the NaYF : Yb +, Er +/Tm , respectively. The effects of different solvents used and solvent concentration on the shape, size and size distribution of the nanocrystals have been investigated. It has been revealed that the doping ions diffused into NaYF lattice, and they formed a solid solution. The fluorescence photos, spectra, luminescence mechanism, and the formation mechanism of the nanocrystals have also been demonstrated. Emission spectrums of the nanocrystals prepared by this method show much more complicated emission peaks than by other methods. Copyright © 2009 American Scientific Publishers All rights reserved. |
| Keyword | Crystalline Sodium yttrium fluoride Solvothermal synthesis |
| DOI | 10.1166/jnn.2009.422 |
| URL | View the original |
| Language | 英語English |
| Fulltext Access | |
| Citation statistics | |
| Document Type | Conference paper |
| Collection | University of Macau |
| Affiliation | 1.University of Chinese Academy of Sciences 2.Shanghai Institute of Ceramics Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Chen S.,Wang S.,Zhang J.,et al. Solvothermal route to colloidal upconverting NaYF 4 : Yb 3 +/Er 3 Î and Yb 3 +/Tm 3 + nanocrystals[C], 2009, 1942-1946. |
| APA | Chen S.., Wang S.., Zhang J.., & An L. (2009). Solvothermal route to colloidal upconverting NaYF 4 : Yb 3 +/Er 3 Î and Yb 3 +/Tm 3 + nanocrystals. Journal of Nanoscience and Nanotechnology, 9(3), 1942-1946. |
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