수소규소화 반응을 통한 마이크로파-박리된 그래핀 옥사이드와 실리콘 나노와이어 하이브리머의 합성과 특성 분석

Abstract

Silicon nanowire(SiNW)-graphene Hybrimer was synthesized from the reduced GO and SiNW via hydrosilylation in the presence of platinum catalyst. Single-crystalline SiNWs were fabricated by using an electroless metal assisted chemical etching of bulk silicon wafers with silver nanoparticles deposited by a spin-casting. The etching of SiNWs was carried out in an aqueous solutions of hydrofluoric acid and hydrogen peroxide. Free-standing SiNWs were then obtained using ultrasono-method in THF. GO was prepared by Hummer’s method and reduced by a microwave to give a reduced grapheme which was used for the synthesis of SiNW-graphene Hybrimer. The morphology of SiNW-graphene Hybrimers were characterized by EDS, TEM, and FE-SEM. Covalent bond between graphene and SiNW was confirmed by using XPS, Raman, and FTIR spectroscopy. BET measurement showed that SiNW-graphene Hybrimer has a mesoporous.