Vacuum Deposition of Thin Films

Abstract

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Solar-Powered Photocatalytic Fiber-Optic Cable Reactor for Waste Stream Remediation

“…The secondary reflector is adjusted until a The primary collector diameter was set based on the desired input flux, / 1 nput• the ambient solar flux data, Iambicm• (Fig. 3) and the estimated efficiencies for the primary, ' Figure 5 is a plot of silver reflectivity data as a function of wavelength, the ambient solar flux, and the corresponding reduction of the reflected solar flux (Holland, 1958). The reflectivity at each wavelength was weighted by the contribution of the wavelength to the ambient UV flux and integrated.…”

“…Thus, the overall reflection efficiency for the primary reflector was estimated to be 77r•·imary = 45 percent. The aluminum coating on the secondary reflector was estilnated to have a reflection.efficiency of 'l7sccondnry r=::;:; 100 percent (Holland, 1958). Three 1nain factors affected the beam to fiber coupling efficiency.…”

The preparation and properties of metallic optically transparent electrodes

“…However, most recently, the preferred method of application has been some form of vacuum evaporation. Simultaneous with these ideas has been the recognition that annealing after application improves the electrical characteristics of the film and also that, rather than deposition of the metal directly onto glass or quartz, an improved result is obtained when the metal is deposited onto an oxide [7]. More recently [8], the use of tin oxide has been advocated so that not only do the general benefits of oxides result but also the additional conductivity of the oxide layer can be usefully employed.…”

Evaporation characteristics of electron beam gun heated sources

“…Hence a hollow cylindrical source has also been investigated. Further, while the emission characteristics based on the source-substrate geometry have been investigated for a number of source shapes, 4 no such work has been reported for the EBG source (other than a preliminary report by us ). Consider the source of radius R and height H to consist of a stack of rings whose radii vary from 0 to R. Each ring is assumed to be an array of small area surface sources.…”

“…The emission characteristic for a ring array of small area surface sources is given by 4 (z-h) a ((z-h) +x +r) Further, since…”