Improving 800 nm Triggered Upconversion Emission for Lanthanide-Doped CaF2 Nanoparticles through Sodium Ion Doping | |
Xu, Bing2; He, Huimei2; Gu, Zhanjun3,4; Jin, Shengye1; Ma, Ying2; Zhai, Tianyou2 | |
刊名 | JOURNAL OF PHYSICAL CHEMISTRY C |
2017-08-24 | |
卷号 | 121期号:33页码:18280-18287 |
英文摘要 | Lanthanide ions (Ln(3+))-doped CaF2 luminescent nanoparticles exhibit unique optical properties and represent promising candidates for bioapplications; however, their inherent weak luminescence intensity greatly limits their application, especially for Nd3+-sensitized ones. We have doped Ln(3+) ions along with Na+ ion into CaF2 lattice to maintain charge neutrality and investigated the influence of Na+ ion on the 800 nm triggered upconversion process. As compared with Na+-free (shell layer) nanoparticles, the crystallinity of Na+-ion-codoped ones has been improved greatly, and the average lifetimes of the excited Nd3+, Yb3+, and Er3+ states have been prolonged after Na+ ion codoping in the sensitizing shell. Thus the energy-transfer efficiency from sensitizers (Nd3+) to activators (Er3+) has been increased by 67%. As a result, the upconversion luminescence intensity of the nanoparticles with suitable Na+ doping reaches 67 times higher than Na+-free nanoparticles upon 800 nm irradiation, although fewer Ln(3+) ions were doped into CaF2 in this case. The as-synthesized CaF2:Yb/Er@CaF2:Nd/Yb core-shell structured (CS) UCNPs may be good candidates as excellent imaging nanoprobes because of their good biocompatibility. |
WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
类目[WOS] | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
研究领域[WOS] | Chemistry ; Science & Technology - Other Topics ; Materials Science |
关键词[WOS] | IN-VIVO BIOAPPLICATIONS ; NEAR-INFRARED LIGHT ; PHOTODYNAMIC THERAPY ; SHELL NANOPARTICLES ; BIOIMAGING PROBES ; ENERGY-TRANSFER ; LUMINESCENT ; ND3+ ; NANOCRYSTALS ; NANOMATERIALS |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000408598600077 |
内容类型 | 期刊论文 |
源URL | [http://cas-ir.dicp.ac.cn/handle/321008/150004] |
专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China 2.Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & & Mould Technol, Wuhan 430074, Hubei, Peoples R China 3.Chinese Acad Sci, Natl Ctr Nanosci & Technol, Key Lab Biomed Effects Nanomat & Nanosafety, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Natl Ctr Nanosci & Technol, Inst High Energy Phys, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Xu, Bing,He, Huimei,Gu, Zhanjun,et al. Improving 800 nm Triggered Upconversion Emission for Lanthanide-Doped CaF2 Nanoparticles through Sodium Ion Doping[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2017,121(33):18280-18287. |
APA | Xu, Bing,He, Huimei,Gu, Zhanjun,Jin, Shengye,Ma, Ying,&Zhai, Tianyou.(2017).Improving 800 nm Triggered Upconversion Emission for Lanthanide-Doped CaF2 Nanoparticles through Sodium Ion Doping.JOURNAL OF PHYSICAL CHEMISTRY C,121(33),18280-18287. |
MLA | Xu, Bing,et al."Improving 800 nm Triggered Upconversion Emission for Lanthanide-Doped CaF2 Nanoparticles through Sodium Ion Doping".JOURNAL OF PHYSICAL CHEMISTRY C 121.33(2017):18280-18287. |
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