Abstract
A novel broad visible photoluminescence (PL) material has been demonstrated from rapid-thermal-annealed two-layer Si/C films on Si(1 0 0). The asymmetric broad PL peak covered wavelengths of 350-750 nm. The wide visible PL spectrum can be deconvoluted into four bands of blue (∼420 nm), green (∼490 nm), green-yellow (∼550 nm) and orange (∼650 nm) emission, corresponding to emission from SiC nanocrystals, sp2 carbon clusters, c-SiC nanoparticles and Si nanocrystals, respectively. The detailed mechanism of broad photoluminescence was proposed in terms of microstructure evolution.
Original language | English |
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Pages (from-to) | 432-435 |
Number of pages | 4 |
Journal | Scripta Materialia |
Volume | 65 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2011 Sept |
All Science Journal Classification (ASJC) codes
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys