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- W2068991846 abstract "The formation of self-assembled ZnO nanoclusters using diblock copolymers for self-assembly is reviewed and the development of the ZnO nanoclusters within two different copolymer systems -- poly styrene-acrylic acid and poly styrene methacrylic acid, with block repeat unit ratios of 159/63 and 318/78, respectively, are reported. Different copolymer systems were used to observe the size dependence of the nanoclusters on the molecular block lengths of the copolymers. The synthesis scheme of the nanoclusters relied on the thermodynamically driven microphase separation of the diblock copolymers in solid phase due to immiscibility of the covalently bonded polymers in the copolymer. The scheme involved the formation of ZnCl 2 nanoclusters on Si and SiO 2 surfaces by doping of the copolymer systems with ZnCl 2 in liquid phase at room temperature and application of the doped solution onto the surfaces by spin-on casting, followed by conversion to ZnO nanoclusters using a new dry technique of ozone exposure. The dry method effectively converted ZnCl 2 , without any loss of ZnO during conversion and with better conversion rate than the wet chemical method developed previously. XPS verified the conversion to ZnO and AFM showed the spherical morphology of the nanoclusters. Technique was developed using RIE for obtaining stand-alone nanoclusters on both surfaces." @default.
- W2068991846 created "2016-06-24" @default.
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- W2068991846 date "2004-07-06" @default.
- W2068991846 modified "2023-09-23" @default.
- W2068991846 title "ZnO nanostructures on Si and SiO 2 surfaces by diblock copolymer self-assembly" @default.
- W2068991846 doi "https://doi.org/10.1117/12.523003" @default.
- W2068991846 hasPublicationYear "2004" @default.
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