School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, UK.
Philos Trans A Math Phys Eng Sci. 2010 Sep 28;368(1927):4313-30. doi: 10.1098/rsta.2010.0132.
The use of the water-oil interface provides significant advantages in the synthesis of inorganic nanostructures. Employing the water-toluene interface, luminescent CdS nanocrystals have been obtained at a relatively modest temperature of 35 degrees C. The diameters of the particulates can be varied between 1.0 and 5.0 nm. In addition, we have devised a new method for transferring thin films at the water-toluene interface onto solid substrates. Using this method, thin films consisting of Au and Ag nanocrystals spread over very large areas (square centimetres) are obtained in a single step. These films are directly usable as ingredients of functional devices. We show this by constructing a working amine sensor based on films of Au nanocrystals. The materials obtained have been characterized by X-ray diffraction, scanning and transmission electron microscopy, absorption and emission spectroscopy and charge transport measurements.
油水界面在无机纳米结构的合成中具有显著的优势。通过采用水-甲苯界面，在相对温和的 35°C 温度下即可获得发光 CdS 纳米晶体。颗粒的直径可以在 1.0 到 5.0nm 之间变化。此外，我们还设计了一种在水-甲苯界面上将薄膜转移到固体基底上的新方法。使用这种方法，可以在一步中获得覆盖非常大区域（平方厘米）的由 Au 和 Ag 纳米晶体组成的薄膜。这些薄膜可以直接用作功能器件的组成部分。我们通过构建基于 Au 纳米晶体薄膜的工作胺传感器来说明这一点。所获得的材料已经通过 X 射线衍射、扫描和透射电子显微镜、吸收和发射光谱以及电荷输运测量进行了表征。
