Self-supporting nanopore membranes with controlled pore size and shape.
作者： Zhe-Xue Lu , Arya Namboodiri , Maryanne M. Collinson
DOI: 10.1021/NN8000017
关键词:
摘要: Self-supporting membranes containing either isolated or organized arrays of nanosized pores have been prepared using a nonlithographic approach by coupling sol−gel processing, thin film preparation, and templating. Specifically, polystyrene latex spheres were doped into hybrid sol from tetraethoxysilane dimethyldiethoxysilane the resultant spin cast on sacrificial support. Upon removal template support, self-supporting nanopore transferred to glass for characterization atomic force microscopy scanning electron microscopy. Through variations in thickness size spheres, geometry (cylinder-like asymmetric-like) dimensions nanopores altered. Pores with diameters that range 35 2100 nm, aspect ratios (defined as top pore diameter divided bottom diameter) 1−4, depths (effective thickness) 50 1500 nms p...
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