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High up-conversion efficiency of YVO4:Yb,Er nanoparticles in water down to the single-particle level

Abstract:

We report up-conversion emission from an aqueous solution of YVO 4:Yb3+,Er3+ nanocrystals synthesized by an original method that produces nanoparticles with excellent crystallinity and no porosity. We show that these YVO4:Yb3+,Er3+ nanocrystals are not very sensitive to nonradiative relaxations, leading to a high green-to-red emission ratio of 6.3. Using a comparison with YVO 4:Eu3+ particles, we determined the quantum yield of the up-conversion emission of the aqueous YVO4:Yb3+,Er 3+ dispers...

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Publisher copy:
10.1021/jp107900z

Authors


Journal:
Journal of Physical Chemistry C More from this journal
Volume:
114
Issue:
51
Pages:
22449-22454
Publication date:
2010-12-30
DOI:
EISSN:
1932-7455
ISSN:
1932-7447
Language:
English
Pubs id:
pubs:134862
UUID:
uuid:b5e1df84-6e0d-4428-9ba8-8b901bd09b7d
Local pid:
pubs:134862
Source identifiers:
134862
Deposit date:
2012-12-19

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