Journal
APPLIED PHYSICS LETTERS
Volume 106, Issue 5, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4907674
Keywords
-
Categories
Funding
- National Natural Science Foundation of China [11074037, 11274063]
- Scientific Research Foundation of Graduate School of Southeast University [YBJJ1337]
Ask authors/readers for more resources
The surface defect that results in the usually observed blue luminescence in the SiC quantum dots (QDs) remains unclear. We experimentally identify that the surface defect C=O (in COO) is responsible for this constant blue luminescence. The HO center dot center dot center dot C=O [n((OH)) -> pi((CO))*] interaction between the hydroxyl and carbonyl groups changes the energy levels of C=O and makes the light absorption/emission arise at around 326/438 nm. Another surface defect (Si-Si) is identified and its light absorption contributes to both C=O-related luminescence and quantum-confinement luminescence of the SiC QDs. (C) 2015 AIP Publishing LLC.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available