Giant enhancement of upconversion in ultra-small Er 3+ /Yb 3+ :NaYF 4 nanoparticles via laser=0Aannealing

A Bednarkiewicz, D Wawrzynczyk, A Gagor, L Kepinski, M Kurnatowska, L Krajczyk, M Nyk, M Samoc and W Strek Link to full article

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