Abstract
Superior optical limiting (OL) characteristics and mechanisms are explored in a novel nanocomposite made from graphene oxide (GO) and NaYF 4:Yb3+/Er3+ nanoparticles via covalent chemical bonding. Due to the synergistic effect of enhanced nonlinear scattering, two-photon absorption, and efficient energy transfer between NaYF 4:Yb3+/Er3+ nanoparticles and GO, the nanocomposite displays dramatically improved OL effects compared to either GO or NaYF4:Yb3+/Er3+ nanoparticles, making it a very promising material for practical OL devices.
Original language | English |
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Pages (from-to) | 2163-2168 |
Number of pages | 6 |
Journal | Small |
Volume | 8 |
Issue number | 14 |
DOIs | |
State | Published - 23 Jul 2012 |
Externally published | Yes |
Keywords
- graphene oxide
- lanthanides
- nanocomposites
- nonlinear optics