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Precisely Tailoring Upconversion Dynamics via Energy Migration in Core-Shell Nanostructures.
Zuo, Jing; Sun, Dapeng; Tu, Langping; Wu, Yanni; Cao, Yinghui; Xue, Bin; Zhang, Youlin; Chang, Yulei; Liu, Xiaomin; Kong, Xianggui; Buma, Wybren Jan; Meijer, Evert Jan; Zhang, Hong.
Affiliation
  • Zuo J; State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, China.
  • Sun D; University of the Chinese Academy of Sciences, Beijing, 100049, China.
  • Tu L; Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098, XH, Amsterdam, The Netherlands.
  • Wu Y; Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098, XH, Amsterdam, The Netherlands.
  • Cao Y; State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, China.
  • Xue B; Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098, XH, Amsterdam, The Netherlands.
  • Zhang Y; College of Computer Science and Technology, Jilin University, 2699 Qianjin Street, Changchun, Jilin, 130021, China.
  • Chang Y; State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, China.
  • Liu X; State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, China.
  • Kong X; State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, China.
  • Buma WJ; State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, China.
  • Meijer EJ; State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, China.
  • Zhang H; Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098, XH, Amsterdam, The Netherlands.
Angew Chem Int Ed Engl ; 57(12): 3054-3058, 2018 03 12.
Article in En | MEDLINE | ID: mdl-29364564
ABSTRACT
Upconversion emission dynamics have long been believed to be determined by the activator and its interaction with neighboring sensitizers. Herein this assumption is, however, shown to be invalid for nanostructures. We demonstrate that excitation energy migration greatly affects upconversion emission dynamics. "Dopant ions' spatial separation" nanostructures are designed as model systems and the intimate link between the random nature of energy migration and upconversion emission time behavior is unraveled by theoretical modelling and confirmed spectroscopically. Based on this new fundamental insight, we have successfully realized fine control of upconversion emission time behavior (either rise or decay process) by tuning the energy migration paths in various specifically designed nanostructures. This result is significant for applications of this type of materials in super resolution spectroscopy, high-density data storage, anti-counterfeiting, and biological imaging.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Lanthanoid Series Elements / Nanostructures Language: En Journal: Angew Chem Int Ed Engl Year: 2018 Document type: Article Affiliation country: China
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Lanthanoid Series Elements / Nanostructures Language: En Journal: Angew Chem Int Ed Engl Year: 2018 Document type: Article Affiliation country: China