Organized Polymer Assemblies on Conducting and Semiconducting Surfaces

9322040怀特塞尔在电光接口等高技术领域的进展目前受到新材料制造和加工方法的限制。例如，光学开关要求材料与复合分子的极轴对准。最近报道了利用新的合成方法和技术在表面上合成高度取向的薄膜材料。这些研究代表着一个重大计划的开始，该计划将导致具有重大实际应用的独特材料。在α-氨基酸多肽领域，这些材料在光稳定、电光器件等方面有很大的实际应用潜力。此外，一系列其他聚合物很可能以新的形式制造成表面的薄膜。概括地说，该计划的目标是：1.制备：详细研究在金属和非金属表面上以有序阵列形式制备α-氨基酸多肽的方法，包括用于构建纳米结构的光刻技术；2.物理表征：扩大对这些多肽层的性质的了解，特别是当它们与其不寻常的高极性性质有关时；3.扩展：检查其他聚合物系统是否适用于在表面上有序生长，目的是制备迄今为止从未被研究过的新型薄膜。%作为这项研究的结果，将开发出由α-氨基酸制备新型、高度取向的薄膜的方法。这些薄膜是构建下一代电光器件的光开关的有希望的候选者。

9322040 Whitesell Advances in high technology areas such as electrooptical interfaces are currently limited by methods for fabrication and processing of new materials. For example, optical switches require materials with alignment of the polar axis of the composite molecules. The synthesis of highly oriented materials as thin films on surfaces using new synthetic methods and techniques was recently reported. These studies represent the beginning of a major program leading to unique materials with major practical applications. In the area of alpha-amino acid peptides there is a great potential for practical applications of these materials in photostable, electrooptical devices. Furthermore, it is likely that a range of other polymers can be fabricated in new forms as thin films on surfaces. Broadly stated, the goals of this program are: 1. Fabrication: to study in detail ways of preparing alpha- amino acid peptides as ordered arrays on metal and non-metal surfaces, including photolithographic techniques for the construction of nanoscale structures; 2. Physical characterization: to expand knowledge of the properties of these peptide layers, especially as they relate to their unusual, highly polar nature; 3. Extensions: to examine other polymer systems for applicability to ordered growth on surfaces, with the aim of preparing novel thin films heretofore never examined. %%% As a result of this research, methods of fabrication novel, highly oriented thin films from alpha-amino acids will be developed. The films are promising candidates for the construction of optical switches for the next generation of electrooptical devices.