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用循环伏安法和电子显微镜研究了不同类型的染料在溴化银上的吸附,使用了电沉积在铂上的溴化银电极作为照相乳剂的模型,证明了由于染料电荷的不同,其在AgBr/Br~-表面上的吸附也不同,正性染料被吸附时,形成难溶的表面络合物,和负性染料相作用时,形成易溶的表面络合物,而当AgBr与非菁负性染料作用时,则由于负电排斥而不形成络合物。因此,利用循环伏安法可以判断不同染料的吸附情况。本文还研完了超增感及Riester提出的‘强色增感’中的吸附情况。实验结果表明在AgBr上染料的排列次序取决于其吸附强度。本工作还证明了Reister所提出的‘强色增感剂’的作用机理是可信的。
Cyclic voltammetry and electron microscopy were used to study the adsorption of different types of dyes on silver bromide. The silver bromide electrode electrodeposited on platinum was used as a model for the photographic emulsion. It was shown that due to the difference in dye charge, AgBr / Br ~ - adsorption on the surface is also different, positive dye is adsorbed to form a poorly soluble surface complex, and the negative dye phase, the formation of soluble surface complexes, and when AgBr and non Cyanine negative dye role, then due to negative repulsion does not form a complex. Therefore, the use of cyclic voltammetry can determine the adsorption of different dyes. The article also investigates the super-sensation and the adsorption in Riester’s ’strong sensation of color’. The experimental results show that the order of the dyes on the AgBr depends on the adsorption strength. This work also proves that the mechanism of action of ’strong color sensitizer’ proposed by Reister is credible.