прошу помощи в поиске этой статьи.
J. Phys. Chem. B, 2003, 107 (5), pp 1107–1112
Effect of Yb3+ Codoping on the Upconversion Emission in Nanocrystalline Y2O3:Er3+
Fiorenzo Vetrone, J. Christopher Boyer, John A. Capobianco, Adolfo Speghini, Marco Bettinelli
- DOI:
http://dx.doi.org/10.1021/jp0218692