Phosphorene quantum dots
| Autor: | C. N. R. Rao, Manaswee Barua, Madhulika Mazumder, Swapan K. Pati, Pratap Vishnoi |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Photoluminescence
Materials science General Physics and Astronomy Electron donor 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Acceptor Exfoliation joint 0104 chemical sciences chemistry.chemical_compound Phosphorene chemistry Quantum dot Molecule Physical and Theoretical Chemistry 0210 nano-technology Mesitylene |
| Zdroj: | Chemical Physics Letters. 699:223-228 |
| ISSN: | 0009-2614 |
| DOI: | 10.1016/j.cplett.2018.03.069 |
| Popis: | Phosphorene, a two-dimensional material, has been a subject of recent investigations. In the present study, we have prepared blue fluorescent phosphorene quantum dots (PQDs) by liquid phase exfoliation of black phosphorus in two non-polar solvents, toluene and mesitylene. The average particle sizes of PQDs decrease from 5.0 to 1.0 nm on increasing the sonicator power from 150 to 225 W. The photoluminescence spectrum of the PQDs is red-shifted in the 395–470 nm range on increasing the excitation-wavelength from 300 to 480 nm. Electron donor and acceptor molecules quench the photoluminescence, with the acceptors showing more marked effects. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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