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Photoluminescent Silicon Clusters in Oriented Hexagonal Mesoporous Silica Film

✍ Scribed by Ömer Dag; Geoffrey A. Ozin; Hong Yang; Christian Reber; Guillaume Bussière


Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
715 KB
Volume
11
Category
Article
ISSN
0935-9648

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✦ Synopsis


tube (Hamamatsu R928). The signal was accumulated with a digital oscilloscope (Tektronix TDS380) triggered by a Si photodiode (Thorlabs FDS 100) detecting the excitation pulse.


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A simple reactive evaporation method is proposed to prepare light-emitting SiO x thin films. Pure silicon is evaporated in a controlled molecular oxygen atmosphere. By changing the pressure in the preparation chamber, x can be varied from 0.7 to 1.85. The samples were annealed in the range 350-1100