Hwang, Wonseok Choi, Ji-Hyuk Kim, Tae Hee Sung, Jinwoo Myoung, Jae-Min Choi, Dae-Geun Sohn, Byeong-Hyeok Lee, Sang Soo Kim, Dong Ha Park, Cheolmin 2024-01-20T22:32:48Z 2024-01-20T22:32:48Z 2021-09-03 2008-10-14 0897-4756 https://pubs.kist.re.kr/handle/201004/133057 We develop a novel and simple method for controlling the area density of ZnO nanowires vertically gorown on a Si Substrate. The method is based on blending spherical polystyrene-block-poly(acrylic acid) (PS-b-PAA) micelles with polystyrene-block-poly 4-vinylpyridine (PS-b-P4VP) for the area density control of Au nanoparticles, a catalyst of ZnO nanowires, chemically reduced from hydrogen tetrachloroauratc (HAuCl4) selectively in P4VP core block. No interdiffusion between the two types of block copolymer micelles allows us to fabricate the monolayer of the mixed micelles with the controlled density of Au nanoparticles from which single crystal ZnO nanowires are grown by the VLS method. The number of ZnO nanowires per unit area varies from approximately 15-120 mu m(-2) With a tuning capability of more than 800%. Micropatterns with the controlled density of Au nanoparticles are also fabricated by selective pattern transfer of blended micelles. English AMER CHEMICAL SOC WALLED CARBON NANOTUBES THIN-FILMS TRIBLOCK COPOLYMERS POLYMERIC MICELLES BLOCK-COPOLYMERS DIBLOCK SILICON NANOPARTICLES TEMPLATES COMICELLIZATION Control of the Area Density of Vertically Grown ZnO Nanowires by Blending PS-b-P4VP and PS-b-PAA Copolymer Micelles Article 10.1021/cm800719h 1 CHEMISTRY OF MATERIALS, v.20, no.19, pp.6041 - 6047 CHEMISTRY OF MATERIALS 20 19 6041 6047 scie scopus 000259871500015 2-s2.0-54849411233 Chemistry, Physical Materials Science, Multidisciplinary Chemistry Materials Science Article WALLED CARBON NANOTUBES THIN-FILMS TRIBLOCK COPOLYMERS POLYMERIC MICELLES BLOCK-COPOLYMERS DIBLOCK SILICON NANOPARTICLES TEMPLATES COMICELLIZATION ZnO nanowire blending copolymer micelle area control