ABSTRACT

I. INTRODUCTION Thin organic films containing colloidal particles have been of interest for some time because of their possibly synergistic properties. By surrounding nanoparticles with organic/amphiphilic groups, the useful photo, electrical, or reactive properties of the particles may be enhanced, and at the same time, the organic film provides a robust, readily manipulable and transferable medium. These particle-films have been prepared in a number of ways and can be loosely classified into three groups:

1. Amphiphilic or polyelectrolyte films in which metal or semiconductor particles have been prepared in situ (in the films). These usually involve the reaction of an incorporated metal ion with a selected reactant, which may be a gaseous or solution species.