Freestanding spherical silicon nanocrystals: A model system for studying confined excitons
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We report on the light emitting properties of freestanding hydrogen-terminated spherical silicon nanocrystals. The nanocrystals exhibit size-dependent tunable light emission properties. Many light emission properties of this system are found to be very similar to those known for other systems containing silicon nanocrystals. However, we found specific emission properties of this system ascribed to the spherical shape of silicon nanocrystals and their spatial separation. We attributed all observations to the spatial confinement of excitons within the crystalline core of the indirect band gap silicon nanocrystals.
|Creators||Goller, B., Polisski, S., Wiggers, H. and Kovalev, D.|
|Uncontrolled Keywords||nanostructured materials,elemental semiconductors,excitons,semiconductor quantum dots,visible spectra,photoluminescence,silicon,infrared spectra|
|Departments||Faculty of Science > Physics|
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