Journal
JOURNAL OF MATERIALS CHEMISTRY C
Volume 1, Issue 40, Pages 6541-6546Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3tc30895b
Keywords
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Funding
- National Natural Science Foundation of China [51002068]
- Natural Science Foundation of Yunnan Province [2010ZC038]
- Education Department Foundation of Yunnan Province [2011Y348]
- Analysis and Measurement Foundation of Kunming University of Science and Technology [20130085]
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A new method for enhancing the upconversion (UC) emission of rare-earth doped nanoparticles is reported, in which Yb3+/Er3+ or Yb3+/Tm3+ co-doped NaYF4 nanoparticles are deposited on to the surface of photonic crystal (PC) films. The UC emission of the Yb3+/Er3+ or Yb3+/Tm3+ co-doped NaYF4 nanoparticles on the PC surface was notably enhanced when the UC emission bands of the Yb3+/Er3+ or Yb3+/Tm3+ co-doped NaYF4 nanoparticles were within the range of the photonic band gap of the PCs, indicating that the PCs were efficient and selective reflection mirrors. The results show that PCs may have potential applications in UC optoelectronics and lighting devices.
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