Dynamics of Langmuir-Blodgett Mono-Molecular Film Deposition

阿拉巴马州的Cerro，R./U高度有序的有机薄膜，一个分子的厚度，继续是应用纳米科学发展最快的领域之一。纳米技术的几个重要应用领域包括纳米生物传感器、纳米化学传感器、非线性光学器件和生物抗性/生物相容保护涂层。最古老的制备超薄有序化学层的方法是Langmuir-Blodgett技术。然而，由于显然无法控制可靠的薄膜沉积所需的流体动力学变量，Langmuir-Blodgett技术还没有被用于制造纳米技术设备的工业规模。与朗缪尔-布洛格特薄膜沉积技术相关的大多数问题可以追溯到气体-液体-固体移动接触线的复杂动力学。在这项建议中，我们讨论了如何利用最近在移动接触线动力学方面的实验和理论进展来发展基础知识，进而可以用来提供沉积过程的物理模型，该物理模型将为开发更快的工业规模的方法来制造有序薄膜铺平道路。更快、更便宜和可靠的L-B沉积处理器的发展将影响纳米技术中一些最活跃的领域，例如微机械的制造，这项提案由位于亨茨维尔的阿拉巴马大学以类似版本提交给NSF，并由利兹大学提交给英国工程和物理科学研究委员会(EPSRC)。这项建议的主要优点是协作团队方法，将被用来分析这项研究的实验和理论方面，以及美国和英国的小组将集体专业知识引入到建议中。

ABSTRACTCTS-0002150Cerro, R./ U. of AlabamaHighly ordered organic films, one molecule in thickness, continue to be one of the fastest growing areas of applied nano-science. A few important areas of applications for nano-technology include nano-biosensors, nano-chemical sensors, nonlinear optic devices, and bio-resistant/bio-compatible protective coatings. The oldest method for manufacturing ultra-thin organized chemical layers is the Langmuir-Blodgett technique.The Langmuir-Blodgett technique, however, ahs not been used on an industrial scale for the manufacturing of nano-technology devices due to the apparent inability to control the hydrodynamic variable needed for reliable thin film deposition. Most of the problems associated with the Langmuir-Blogett techniques for thin film deposition can be traced back to the complex dynamics of the gas-liquid -solid moving contact line. We discuss in this proposal how recent experimental and theoretical advances on the dynamics of moving contact lines can be used to develop a fundamental knowledge can be used in turn to provide a physical model of the deposition process that will pave the way for developing faster industrial- scale methods to manufacture ordered thin films.The development of faster, cheaper and reliable L-B deposition processors will impact some of the most active areas in nano-technology, such as the manufacture of MEMS, and the development of extremely sensitive chemical-detecting or bio-detecting devices.This proposal is submitted in similar versions to the NSF by the university of Alabama in Huntsville and to UK's Engineering and Physical Sciences Research Council (EPSRC) by Leeds University. The main strength of this proposal is to collaborative team approach that will be used to analyze the experimental and theoretical aspects of this research and on the collective expertise brought into the proposal by the groups at the USA and UK.