Dahlhaus Daniel, Franzka Steffen, Hasselbrink Eckart, Hartmann Nils
Fachbereich Chemie, Universität Duisburg-Essen, Universitätsstr. 5, 45141 Essen, Germany.
Nano Lett. 2006 Oct;6(10):2358-61. doi: 10.1021/nl061608u.
A simple laser-assisted procedure for the fabrication of functional organic nanostructures is demonstrated. Native silicon samples are coated with alkylsiloxane monolayers and patterned with a focused beam of an Ar(+) laser (lambda = 514 nm). After patterning, the coating is chemically functionalized following a robust preparation scheme. Despite a laser spot diameter of about 2.5 mum, this routine allows for the fabrication of well-confined organosiloxane stripes with widths below 100 nm. As shown, these structures provide a versatile means for building ordered surface architectures of nanoscopic components. In particular, gold nanoparticles (d = 16 nm) self-assemble into one-dimensional arrangements, such as single chains.
展示了一种用于制备功能性有机纳米结构的简单激光辅助方法。天然硅样品用烷基硅氧烷单层进行涂覆，并用Ar(+)激光（波长λ = 514 nm）的聚焦光束进行图案化处理。图案化处理后，按照一种稳健的制备方案对涂层进行化学功能化。尽管激光光斑直径约为2.5μm，但该方法能够制备宽度小于100 nm的界限分明的有机硅氧烷条纹。如图所示，这些结构为构建纳米级组件的有序表面结构提供了一种通用方法。特别是，金纳米颗粒（直径d = 16 nm）自组装成一维排列，如单链。
