Shrinkage and expansion mechanisms of SiO2 elliptical membrane nanopores

Title
Shrinkage and expansion mechanisms of SiO2 elliptical membrane nanopores
Authors
신재원이정용오도현김태환조운조
Keywords
silica; nanopore; membrane; 2008기관평가에 미반영('08에미등록했기때문)
Issue Date
2008-12
Publisher
Applied physics letters
Citation
VOL 93, NO 22, 221903-1-221903-3
Abstract
20 nm SiO2 elliptical membrane nanopores with various thicknesses were directly formed in situ by using a focused electron beam with transmission electron microscopy (TEM). The shrinkage and the expansion behaviors of the SiO2 ellipse nanopores with different thicknesses were attributed to variations in their geometries, in particular their curvatures. The geometric mechanisms of elliptical nanopores with various thicknesses fabricated utilizing a SiO2 membrane with a thickness gradient by using an electron beam irradiation are described on the basis of TEM images, which depend on the electron beam irradiation time.
URI
http://pubs.kist.re.kr/handle/201004/36214
ISSN
0003-6951
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KIST Publication > Article
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