Synthesis and photoluminescence studies of silicon nanoparticles embedded in silicon compound films

High-density silicon nanoparticles with well-controlled sizes were grown onto cold substrates in amorphous SiN x and SiC matrices by plasma-enhanced chemical vapor deposition. Strong, tunable photoluminescence across the whole visible light range has been measured at room temperature from such sampl...

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Bibliographic Details
Published in:Frontiers of physics 2008-06, Vol.3 (2), p.173-180
Main Authors: Huang, Rao, Ma, Li-bo, Ye, Jian-ping, Wang, Yong-qian, Cao, Ze-xian
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics and Cosmology
Atomic
Condensed Matter Physics
Molecular
Nanoparticles
Optical and Plasma Physics
Optoelectronics
Particle and Nuclear Physics
Photoluminescence
Physics
Physics and Astronomy
Plasma enhanced chemical vapor deposition
Quantum confinement
Review Article
Room temperature
Silicon
Silicon compounds
Substrates
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Summary:High-density silicon nanoparticles with well-controlled sizes were grown onto cold substrates in amorphous SiN x and SiC matrices by plasma-enhanced chemical vapor deposition. Strong, tunable photoluminescence across the whole visible light range has been measured at room temperature from such samples without invoking any post-treatment, and the spectral features can find a qualitative explanation in the framework of quantum confinement effect. Moreover, the decay time was for the first time brought down to within one nanosecond. These excellent features make the silicon nanostructures discussed here very promising candidates for light-emitting units in photonic and optoelectronic applications.
ISSN:1673-3487
2095-0462
1673-3606
2095-0470
DOI:10.1007/s11467-008-0013-3