Photoelectrochemical and Heterogeneous Photoprocesses at Semiconductors

这个项目是在一般地区的分析和表面 化学和光电化学领域。 期间 在这三年的持续资助的任期内，巴德教授和 他的学生将进行基础研究， 电化学和光电化学反应 半导体/液体界面 三个具体 光电化学研究的重点将是：（1） 量子粒子的制备、表征和研究 以及硫化镉（II）和硫化铁（IV）的薄膜;（2） 半导体表面结构对 扫描隧道光电化学效率 显微镜和隧道光谱技术;以及（3） 光沉积法制备新型半导体材料 半导体单晶、多晶膜上的金属，以及 颗粒表面和化学气相沉积和均匀 合成路线。 %%% 这项研究建立在巴德博士的研究成果的基础上。 先前的国家科学基金会资助，CHE-8805865。 除了提供 基本的见解，发生在过程中， 半导体/液体界面，这项研究是特别的 对应用基于半导体的系统 太阳能的利用，如生产 有用的化学品和废物的销毁。

This project is in the general area of analytical and surface chemistry and in the subfield of photoelectrochemistry. During the tenure of this three-year continuing grant, Professor Bard and his students will pursue fundamental investigations of electrochemical and photoelectrochemical reactions at the semiconductor/liquid interface. Three specific photoelectrochemical research thrusts will be pursued, namely (1) the preparation, characterization, and study of quantum particles and films of cadmium (II) and iron (IV) sulfides; (2) studies of the influence of semiconductor surface structure on photoelectrochemical efficiency using scanning tunneling microscopy and tunneling spectroscopy techniques; and (3) preparation of new semiconductor materials by photodeposition of metals on semiconductor single crystal, polycrystalline film, and particle surfaces and by chemical vapor deposition and homogeneous synthetic routes. %%% This research builds upon results obtained under Dr. Bard's previous NSF grant, CHE-8805865. In addition to providing fundamental insights into the processes that occur at the semiconductor/liquid interface, this research is of particular interest in the application of semiconductor-based systems for the utilization of solar energy in such areas as the production of useful chemicals and the destruction of wastes.