三价、四价铱盐的应用研究

A Study on the Use of Trivalent and Quadrivalent Iridium Salt

通过对掺杂(NH4)3IrCl6、(NH4)2IrCl6的氯化银乳剂进行性能应用对比,主要在普通灯光曝光性能、高照度曝光性能、潜影稳定性三个方面进行研究。结果表明:铱盐的化合价位越低,对提高乳剂的高照度曝光性能与潜影稳定性,有较大优势,并从机理上解释了价位低的铱盐,做为浅电子陷阱掺杂剂有较大优势的原因。

This paper reports a study on the comparative effect of doping iridium trivalent salt ammonium iridium chloride and its quadrivalent salt ammonium iridic chloride on the properties of silver chloride emulsion, namely the incandescent lamp exposure response, the high intensity exposure response and the latent image stability. Results showed that in comparison with doped quadrivalent iridium salt, the trivalent iridium salt performs better regarding the improvement of high intensity exposure properties and the latent image stability. The causes of the better performance of the doped trivalent iridium as a shallow electron trap were elucidated.