甲酸根掺杂立方体溴碘化银微晶乳剂的增感效应研究  

Sensitization on Cubic AgBrI Emulsion Doped with Formate

作　　者：马望京[1] 赵艳艳[1] 段培成 史瑶[1] 李智[1] 杨新民[1] 

机构地区：[1]中国科学院理化技术研究所,北京100190

出　　处：《影像科学与光化学》2010年第6期401-407,共7页Imaging Science and Photochemistry

摘　　要：使用反馈式微机控制双注仪,在晶体生长不同时期,依次加入不同量碘盐和一定量甲酸盐,制得了两个系列的溴碘化银乳剂:一系列为碘含量分别为乳剂颗粒总银量的0、2×10-2、3×10-2、4×10-2和5×10-2I-mol/Ag mol的溴碘化银颗粒乳剂;另一系列为碘含量与上述系列乳剂相同,并掺杂有1×10-4mol/Ag mol甲酸根的溴碘化银颗粒乳剂.对其感光性能的测试结果表明,经过化学敏化和光谱增感后,甲酸根掺杂的溴碘化银乳剂较未掺杂甲酸根的乳剂,感光度显著提高,在一定量的I-掺杂范围内(0—4×10-2I-mol/Ag mol),灰雾没有明显增加.By using of the double-jet apparatus controlled by a microcomputer,different amounts of iodide salt and a certain amount of formate were doped in AgBr crystal in different periods of the crystal growth to prepare two series of cubic AgBrI emulsion： a series of formate-undoped AgBrI grain emulsions which contained 0,2×10^-2,3×10^-2,4×10^-2,5×10^-2 I-mol/Ag mol iodide ions respectively,another series of formate-doped AgBrI grain emulsions doped with 1×10^-4 mol/Ag mol formate,which contained the same quantities of iodide ions as former,respectively.The sensitometric results from these emulsions showed that the sensitivities of formate-doped AgBr/I emulsions,relative to those of the corresponding formate-undoped ones as the controlled,regardless of whether they were sensitized chemically and spectrally,were remarkably increased,while in a certain amount of iodide-doping range（0—4×10^-2 I-mol/Ag mol）,fog level of those were not remarkably improved.

关 键 词：甲酸根 掺杂 溴碘化银 增感效应 

分 类 号：TQ571[化学工程—精细化工]