Abstract
The effects of various dyes upon the electrical conductivity of cubic silver bromide grains with edge lengths of 0.9 μm in a photographic emulsion have been studied with the aid of dielectric loss measurements. The conductivity of the grains was increased by 3,3′-diethyl-9-methylthiacarbocyanine bromide (dye 1) and 1,1′-diethyl–2,2′-quinocyanine iodide (dye 2), and decreased by erythrosin (dye 3) and a merocyanine (dye 4). Based on the knowledge that dyes 1 and 2 are tightly attached to positively charged surface sites composed of silver ions, and that dyes 3 and 4 to negatively charged surface sites, the results are considered to provide evidence for the view on the formation of interstitial silver ions through the positively charged surface sites on silver bromide microcrystals.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
