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Passivation Kinetics at Semiconductor Interfaces


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  • Product Description

This work describes the interaction of atomic hydrogen with defects at GaAs surfaces and Si/SiO2 interfaces. By continuously monitoring the photoluminescence of a GaAs wafer in a discharge-flow system it was observed that there was an initial irreversible passivation of the surface in the presence of the hydrogen atoms. This was followed by an improved, reversible passivation that occurred when the exposure to atomic hydrogen was discontinued. Similar results were obtained when the concentration of defects at the interface of Si/SiO2 was monitored continuously, in situ, with a remote radio frequency (RF) probe that measured the steady-state photogenerated carriers. By comparing the GaAs and Si/SiO2 systems it was concluded that hydrogen atoms could be trapped at interstitial sites near both interfaces. The reaction of molecular hydrogen with defects at Si/SiO2 interfaces was also investigated using the RF-probe. The results indicated the presence of other interfacial defects that react with H2, which could not be detected in earlier electron paramagnetic resonance studies.

Product Specifications
SKU :COC98477
AuthorLigia Gheorghita
Number of Pages168
Publishing Year2011-07-16T00:00:00.000
Edition1 st
Book TypeAnalytical chemistry
Country of ManufactureIndia
Product BrandLAP LAMBERT Academic Publishing
Product Packaging InfoBox
In The Box1 Piece
Product First Available On ClickOnCare.com2015-08-18 00:00:00