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Descripción
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| SiGeO films were deposited by LPCVD using Si2H6, GeH4 and O2 as reactive gases and furnace annealed to segregate the possible excess of Si and Ge in the form of nanocrystals embedded in an oxide matrix. For low GeH4VSi2H6 flow ratios and deposition temperatures of 450 ºC or lower, the deposited film consists of a SiO2 matrix incorporating Ge. No Ge oxides and no nanocrystals are detected. After annealing of the samples with SiO2 matrices at temperatures of 600 ºC or higher, quasi-spherical isolated Ge nanocrystals with diameters ranging from 4.5 to 9 nm and homogeneously distributed throughout the whole film thickness are formed. In the samples deposited with low GeH4VSi2H6 flow ratios, the original SiO2 matrix holds its composition | |
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Internacional
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Si |
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JCR del ISI
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No |
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Título de la revista
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Superlattices and Microstructures |
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ISSN
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0749-6036 |
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Factor de impacto JCR
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0 |
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Información de impacto
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Volumen
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45 |
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DOI
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Número de revista
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0 |
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Desde la página
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343 |
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Hasta la página
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348 |
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Mes
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ENERO |
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Ranking
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