Abstract
The luminescent capability of graphene quantum dots (GQDs) was investigated and compared with that of carbon nanodots (C-dots) obtained from the same functionalization process. It was found that the optical gain of GQDs is higher than that of C-dots due to their geometrical advantages such as larger surface area to volume ratio and smaller volume. Under optical excitation at 266 nm, lasing emission was observed from a Fabry-Perot cavity containing a mixture of GQDs and TiO2 nanoparticles dispersed inside ethanol.
| Original language | English |
|---|---|
| Pages (from-to) | 1797-1802 |
| Number of pages | 6 |
| Journal | Nanoscale |
| Volume | 5 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 7 Mar 2013 |
ASJC Scopus subject areas
- General Materials Science