CAPILLARY WAVES IN LANGMUIR-BLODGETT INTERFACES AND FORMATION OF CONFINED CDS LAYERS

Nanometer sized CdS particles can be formed by exposing cadmium arachi date Langmuir-Blodgett films to hydrogen sulphide environment. X-ray s cattering studies were performed to understand the formation of these particles that exhibit the quantum confinement effect in band structur e. It was observed that the CdS layers remain confined within a region of similar to 14 Angstrom around metal interfaces in these films. The sharp interfaces and the multilayer molecular stack of the films rema ins intact in the process of CdS formation. Logarithmic in-plane inter facial correlation, characteristic of capillary waves on liquid surfac es, was observed in both exposed and unexposed films.