Blue photoluminescence from rapid thermally oxidized porous silicon following storage in ambient air

1995 ◽  
Vol 77 (7) ◽  
pp. 3557-3559 ◽  
Author(s):  
A. Loni ◽  
A. J. Simons ◽  
P. D. J. Calcott ◽  
L. T. Canham
1997 ◽  
Vol 71 (1) ◽  
pp. 107-109 ◽  
Author(s):  
A. Loni ◽  
A. J. Simons ◽  
P. D. J. Calcott ◽  
J. P. Newey ◽  
T. I. Cox ◽  
...  

2011 ◽  
Vol 181-182 ◽  
pp. 374-377 ◽  
Author(s):  
Yuan Ming Huang ◽  
Qing Lan Ma ◽  
Bao Gai Zhai

Upon the 325 nm excitation from a helium-cadmium laser, the photoluminescence (PL) from aged porous silicon was investigated with fluorescence spectroscopy. Each PL spectrum of the aged porous silicon films contained two luminescent bands, one of the luminescent bands peaked at about 466.7 nm whereas the other luminescent band peaked at about 596.1 nm. The origin of the blue PL from aged porous silicon was discussed, and our results indicated that the blue photoluminescence of porous silicon films originated from the silicon oxide itself.


2000 ◽  
Vol 77 (15) ◽  
pp. 2316-2318 ◽  
Author(s):  
Hideki Koyama ◽  
Philippe M. Fauchet

2007 ◽  
Author(s):  
Daniel Navarro-Urrios ◽  
Mher Ghulinyan ◽  
Paolo Bettotti ◽  
Néstor Capuj ◽  
Claudio J. Oton ◽  
...  

2000 ◽  
Vol 80 (4) ◽  
pp. 679-689 ◽  
Author(s):  
Giampiero Amato ◽  
L. Boarino ◽  
D. Midellino ◽  
A. M. Rossi

1998 ◽  
Vol 536 ◽  
Author(s):  
H. Koyama ◽  
P. M. Fauchet

AbstractThe optical properties of oxidized free-standing porous silicon films excited by a cw laser have been investigated. It is found that samples oxidized at 800–950 °C show a strongly superlinear light emission at an excitation intensity of ∼10 W/cm2. This emission has a peak at 900–1100 nm and shows a blueshift as the oxidation temperature is increased. These samples also show a very large induced absorption, where the transmittance is found to decrease reversibly by ≤99.7 %.The induced absorption increases linearly with increasing pump laser intensity. Both the superlinear emission and the large induced absorption are quenched when the samples are attached to materials with a higher thermal conductivity, suggesting that laser-induced thermal effects are responsible for these phenomena.


2007 ◽  
Vol 204 (5) ◽  
pp. 1444-1448 ◽  
Author(s):  
Michael P. Schwartz ◽  
Christine Yu ◽  
Sara D. Alvarez ◽  
Benjamin Migliori ◽  
Denis Godin ◽  
...  

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