Transient energy trapping as a size-conserving surface passivation strategy for producing bright ultrasmall upconversion nanoprobes

1. Huang, F.
2. Labrador-Páez, L.
3. Ågren, H.
4. Wang, L.
5. Zhang, J.
6. Pu, R.
7. Zhan, Q.
8. Widengren, J.
9. Liu, H.