Centro de Ciências Naturais e Humanas (CCNH), Universidade Federal do ABC, R. Santa Adélia 166, Santo André SP, Brazil.
Chemphyschem. 2013 Jun 24;14(9):1871-6. doi: 10.1002/cphc.201300054. Epub 2013 May 6.
One-dimensional iron oxide materials fabricated on conducting glass substrates and their unique properties make these nanostructures promising candidates for a wide range of applications. Herein, vertically oriented α-Fe2O3 nanorod arrays synthesized under hydrothermal conditions over a large area are described, as an active platform for surface-enhanced resonance Raman scattering (SERRS) and surface-enhanced fluorescence (SEF). From scanning electron microscopy images the formation of a homogeneous distribution of vertically oriented rods in a large area is confirmed. For activating the localized surface plasmon resonances, which are responsible for SERRS and SEF, a 6 nm layer of Ag is deposited onto the α-Fe2O3 nanorod arrays by physical vapor deposition to form Ag islands.
一维氧化铁材料在导电玻璃衬底上的制备及其独特的性质，使得这些纳米结构成为广泛应用的有前途的候选材料。在此，我们描述了在水热条件下大面积合成的垂直取向的α-Fe2O3 纳米棒阵列，作为表面增强共振拉曼散射（SERRS）和表面增强荧光（SEF）的活性平台。从扫描电子显微镜图像可以确认，在大面积上形成了均匀分布的垂直取向的棒。为了激活局域表面等离激元共振，这是 SERRS 和 SEF 的原因，通过物理气相沉积在α-Fe2O3 纳米棒阵列上沉积了 6nm 厚的 Ag 层，以形成 Ag 岛。
