Ultra-broadband near-infrared excitable upconversion core/shell nanocrystalsElectronic supplementary information (ESI) available: Experimental details and Fig. S1-S5. See DOI: 10.1039/c2cc32102e

Monodisperse Er 3+ :NaGdF 4 @Ho 3+ :NaGdF 4 @NaGdF 4 active-core/active-shell/inert-shell nanocrystals, which can extend the near-infrared wavelength excitable range for upconversion (UC) emissions, were successfully fabricated for the first time. Importantly, doping of Er 3+ and Ho 3+ into the core...

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Bibliographic Details
Main Authors Chen, Daqin, Lei, Lei, Yang, Anping, Wang, Zhaoxing, Wang, Yuansheng
Format Journal Article
LanguageEnglish
Published 17.05.2012
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Summary:Monodisperse Er 3+ :NaGdF 4 @Ho 3+ :NaGdF 4 @NaGdF 4 active-core/active-shell/inert-shell nanocrystals, which can extend the near-infrared wavelength excitable range for upconversion (UC) emissions, were successfully fabricated for the first time. Importantly, doping of Er 3+ and Ho 3+ into the core and shell respectively suppresses adverse energy transfers between them, resulting in intense UC emissions for both Er 3+ and Ho 3+ dopants. Novel Er 3+ :NaGdF 4 @Ho 3+ :NaGdF 4 @NaGdF 4 core/shell/shell nanocrystals with ultra-broadband excitable upconversion emissions were successfully fabricated for photovoltaic applications.
Bibliography:Electronic supplementary information (ESI) available: Experimental details and Fig. S1-S5. See DOI
10.1039/c2cc32102e
ISSN:1359-7345
1364-548X
DOI:10.1039/c2cc32102e