参考文献:
Damien Hudry, Ian A. Howard, Radian Popescu, Dagmar Gerthsen, Bryce S. Richards, Structure–Property Relationships in Lanthanide Doped Upconverting Nanocrystals: Recent Advances in Understanding Core Shell Structures. Advanced Materials, 2019.
DOI: 10.1002/adma.201900623
https://onlinelibrary.wiley.com/doi/abs/10.1002/adma.201900623