Accession Number : AD0728131

Title :   A Study on Surface Transport in Degenerate Semiconductors.

Descriptive Note : Final rept. 15 Mar 68-30 Jun 71,

Corporate Author : MOORE SCHOOL OF ELECTRICAL ENGINEERING PHILADELPHIA PA

Personal Author(s) : Zemel,Jay

Report Date : 30 JUN 1971

Pagination or Media Count : 8

Abstract : The stated objective of this research program was the study of the surface properties of degenerate semiconductors based on the lead chalcogenides. The interest in this class of materials arises from their use as infrared sensing materials. In recent years, the growth of epitaxic film usage made it important to establish how gases affected the properties of the films and to see if surface quantization was, in fact, important. This effort has had two important consequences: It established the importance of oxygen and atomic hydrogen on the electrical properties of the lead chalcogenides; and, A working model for chemical sensing was evolved. (Author)

Descriptors :   (*SEMICONDUCTING FILMS, SURFACE PROPERTIES), INFRARED DETECTORS, PHOTOSENSITIVITY, LEAD COMPOUNDS, SELENIDES, EPITAXIAL GROWTH, ELECTRICAL PROPERTIES, OXYGEN, HYDROGEN, ADSORPTION

Subject Categories : Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE