École Polytechnique Fédérale de Lausanne (EPFL), Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères, Bâtiment MXD, Station 12, CH-1015 Lausanne, Switzerland.
ACS Appl Mater Interfaces. 2011 Mar;3(3):910-7. doi: 10.1021/am101270f. Epub 2011 Mar 7.
This manuscript reports a new strategy to guide the chemical solution deposition of thin, microstructured metal films. The proposed strategy is based on the use of poly(2-(methacryloyloxy)ethyl ammonium chloride) (PMETAC) brushes grown via surface-initiated atom transfer radical polymerization as a template. Thin gold films have been prepared by first loading the PMETAC brushes with HAuCl(4), followed by a NaBH(4) mediated reduction to produce a PMETAC-gold nanoparticle composite film and finally an oxygen plasma treatment to remove the stabilizing polymer brush matrix and generate the desired thin gold film. The thickness of the gold films was found to scale with the thickness of the PMETAC brush template. This approach can also be extended to more complex, bimetallic films by exposing the PMETAC template successively to two different precursor salts. In this way, gradient type bimetallic palladium/gold films could be prepared.
本文报道了一种新的策略，用于指导薄的、微结构化金属薄膜的化学溶液沉积。所提出的策略基于使用通过表面引发原子转移自由基聚合生长的聚(2-(甲基丙烯酰氧)乙基氯化铵)(PMETAC)刷作为模板。首先将 PMETAC 刷负载 HAuCl(4)，然后用 NaBH(4)介导还原生成 PMETAC-金纳米粒子复合膜，最后用氧气等离子体处理去除稳定的聚合物刷基质，生成所需的薄金膜，从而制备了薄金膜。金膜的厚度与 PMETAC 刷模板的厚度成比例。通过将 PMETAC 模板依次暴露于两种不同的前体盐，该方法也可以扩展到更复杂的双金属膜。通过这种方式，可以制备出梯度型双金属钯/金膜。
