scholarly journals Phonon confinement effect of silicon nanowires synthesized by laser ablation

2005 ◽  
Vol 86 (21) ◽  
pp. 213112 ◽  
Author(s):  
N. Fukata ◽  
T. Oshima ◽  
K. Murakami ◽  
T. Kizuka ◽  
T. Tsurui ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Silicon Nanowires ◽  
Confinement Effect ◽  
Phonon Confinement ◽  
Phonon Confinement Effect

Thermal Conductivity in Thin Silicon Nanowires:  Phonon Confinement Effect

Nano Letters ◽  
2007 ◽  
Vol 7 (5) ◽  
pp. 1155-1159 ◽  
Author(s):  
Inna Ponomareva ◽  
Deepak Srivastava ◽  
Madhu Menon
Keyword(s):  
Thermal Conductivity ◽  
Silicon Nanowires ◽  
Confinement Effect ◽  
Phonon Confinement ◽  
Thin Silicon ◽  
Phonon Confinement Effect

Size Control and Phonon Confinement of Silicon Nanowires Synthesized by Laser Ablation

2004 ◽  
Vol 832 ◽  
Author(s):  
N. Fukata ◽  
T. Oshima ◽  
T. Tsurui ◽  
S. Ito ◽  
K. Murakami
Keyword(s):  
Laser Ablation ◽  
Silicon Nanowires ◽  
Optical Phonon ◽  
Size Control ◽  
Synthesis Temperature ◽  
Ni Catalyst ◽  
Phonon Confinement ◽  
Phonon Peak ◽  
Lower Temperature ◽  
Phonon Confinement Effect

ABSTRACTSize control of silicon nanowires (SiNWs) synthesized by laser ablation of a Si target with nickel (Ni) as catalysts were investigated. The diameter of SiNWs decreased with decreasing synthesis temperature and content of Ni catalyst. Gradual down shift and asymmetric broadening of Si optical phonon peak depending on the diameter of SiNWs were observed for continuously, thermally oxidized SiNWs and SiNWs with smaller diameters formed at lower temperature. This can be interpreted by the phonon confinement effect. On the other hand, further thermal oxidation produced an upshift of the optical phonon peak. This is considered to be due to compressive stress since this stress was relieved by removing the surface oxide layers formed around the SiNW cores, resulting in a downshift of the optical phonon peak.

The negative phonon confinement effect in nanoscopic sodium nitrite

2009 ◽  
Vol 20 (39) ◽  
pp. 395706 ◽  
Author(s):  
E Yu Koroleva ◽  
D Nuzhnyy ◽  
J Pokorny ◽  
S Kamba ◽  
Yu A Kumzerov ◽  
...  
Keyword(s):  
Sodium Nitrite ◽  
Confinement Effect ◽  
Phonon Confinement ◽  
Phonon Confinement Effect

Formation, structure, and phonon confinement effect of nanocrystalline Si1−xGex in SiO2‐Si‐Ge cosputtered films

2004 ◽  
Vol 96 (9) ◽  
pp. 5239-5242 ◽  
Author(s):  
Y. M. Yang ◽  
X. L. Wu ◽  
G. G. Siu ◽  
G. S. Huang ◽  
J. C. Shen ◽  
...  
Keyword(s):  
Confinement Effect ◽  
Phonon Confinement ◽  
Phonon Confinement Effect

Phonon confinement effect on nanocrystalline LiCoO2 studied with Raman spectroscopy

2008 ◽  
Vol 69 (11) ◽  
pp. 2911-2915 ◽  
Author(s):  
M. Okubo ◽  
E. Hosono ◽  
T. Kudo ◽  
H.S. Zhou ◽  
I. Honma
Keyword(s):  
Raman Spectroscopy ◽  
Confinement Effect ◽  
Phonon Confinement ◽  
Phonon Confinement Effect

Phonon confinement in silicon nanowires synthesized by laser ablation

2006 ◽  
Vol 376-377 ◽  
pp. 864-867 ◽  
Author(s):  
N. Fukata ◽  
T. Oshima ◽  
N. Okada ◽  
T. Kizuka ◽  
T. Tsurui ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Silicon Nanowires ◽  
Phonon Confinement
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