Abstract
In this communication, we report the second harmonic scattering from mass characterized 2D graphene oxide sheets dispersed in an aqueous suspension, in the femtosecond regime at 800 nm laser excitation. Charge-detection mass-spectrometry, performing at the single sheet level, allows for an exhaustive molar mass distribution and thus concentration for these 2D nanomaterials samples. The orientation-averaged hyperpolarizability value is (1.36 ± 0.15) × 10-25 esu as determined by the concentration-dependent harmonic scattering signal. In addition, the multi-photon excited fluorescence spectrum is characterized by a broad band in the visible range between 350 and 700 nm centered at about 500 nm.
| Original language | English |
|---|---|
| Pages (from-to) | 3859-3862 |
| Number of pages | 4 |
| Journal | Chemical Communications |
| Volume | 56 |
| Issue number | 27 |
| DOIs | |
| Publication status | Published - 7 Apr 2020 |
| Externally published | Yes |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Catalysis
- Ceramics and Composites
- General Chemistry
- Surfaces, Coatings and Films
- Metals and Alloys
- Materials Chemistry