Investigation of electrical conductivity in amorphous semiconductors Semiannual report

Electric conductivity and electron transport mechanisms in amorphous semiconductor

Investigation of electrical conductivity in amorphous semiconductors Final report

Theoretical and numerical model study of oxidation kinetics based on ionic diffusion in discrete lattice

Theoretical approach to oxygen atom degradation of silver

Based on available Rutherford backscattering spectrometry (RBS), proton induced X-ray emission (PIXE) and ellipsometry data obtained on silver specimens subjected to atomic oxygen attack in low Earth orbit STS flight 41-G, a theory was developed to model the oxygen atom degradation of silver. The diffusion of atomic oxygen in a microscopically nonuniform medium is an essential constituent of the theory. The driving force for diffusion is the macroscopic electrochemical potential gradient developed between the specimen surface exposed to the ambient and the bulk of the silver specimen. The longitudinal electric effect developed parallel to the gradient is modified by space charge of the diffusing charged species. Lateral electric fields and concentration differences also exist due to the nonuniform nature of the medium. The lateral concentration differences are found to be more important than the lateral electric fields in modifying the diffusion rate. The model was evaluated numerically. Qualitative agreement exists between the kinetics predicted by the theory and kinetic data taken in ground-based experiments utilizing a plasma asher

An experimental investigation of properties of dielectric materials for use in thin film capacitors Final report, 7 Apr. 1965 - 7 Oct. 1965

Rare earth dielectric oxides in thin film capacitor

On Switch-Reference Phenomena in Kolyma Yukaghir

「環太平洋の言語」成果報告書A2-002ELPR publication series A2-00