On the mechanism of electroluminescence emission by porous silicon layers
Abstract: The analytical treatment of a model considering the electrooxidation of p-porous silicon layers under galvanostatic conditions is able to give account of experimental facts such as the shape and location of the electroluminescence peak as well as of the spectral shift of the electroluminescence peak produced by oxidation. The proposed model considers electroluminescence to be the result of electron injection into the conduction band by an adsorbed intermediate produced by electrooxidation of the surface coverage with hydrogen or siloxene of the silicon nanocrystallites. The access of holes to the surface is made possible by low accumulation layer conditions and is the rate determining step in the electroluminescence mechanism. In this way it is possible to give a satisfactory explanation to the shift towards the blue experimented by the electroluminiscence emission maximum as a consequence of electrooxidation.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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On the mechanism of electroluminescence emission by porous silicon layers ; volume:3 ; number:3 ; year:2005 ; pages:470-481 ; extent:12
Open chemistry ; 3, Heft 3 (2005), 470-481 (gesamt 12)
- Creator
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Velasco, Jaime
- DOI
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10.2478/BF02479276
- URN
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urn:nbn:de:101:1-2410171637231.656648194909
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:39 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Velasco, Jaime
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Fitting of lateral resistances in silicon solar cells to electroluminescence images
Lift-off of free-standing layers in the kerfless porous silicon process
Efficient ultraviolet electroluminescence from a Gd-implanted silicon metal oxide semiconductor device
Bright green electroluminescence from Tb 3+ in silicon metal-oxide-semiconductor devices
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Infrared absorption of porous silicon layers and silicon particle films
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Non-destructive spatially resolved characterization of porous silicon layer stacks
Hybrid Nanostructured Porous Silicon-Silver Layers for Wideband Optical Absorption
Advanced Series Resistance Imaging for Silicon Solar Cells via Electroluminescence
Few-Layer Graphene Sheet-Passivated Porous Silicon Toward Excellent Electrochemical Double-Layer Supercapacitor Electrode
Sintered porous silicon : physical properties and applications for layer-transfer silicon thin-film solar cells
Fitting of lateral resistances in silicon solar cells to electroluminescence images
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