氧化石墨烯对卤化银微晶乳剂的超增感效应  

Super-sensitization on Silver Halide Emulsion by Graphene Oxide

作　　者：马望京[1] 梁庆华[1] 琚伟[2] 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 [2]山东省科学院新材料研究所,济南250014

出　　处：《信息记录材料》2013年第1期5-9,共5页Information Recording Materials

基　　金：中国科学院院地合作项目(新型感光性电子浆料研发);山东省中青年科学家科研奖励基金计划项目(BS2011CL036)

摘　　要：使用反馈式微机控制双注乳化仪,制得了溴碘化银微晶乳剂。在特定条件下,将一定量的氧化石墨烯分别在乳剂乳化后、化学增感过程和光谱增感过程中加入,获得3个系列经过掺杂增感后的乳剂。对其进行感光性能测试,结果表明:(1)氧化石墨烯在化学增感过程中具有有效的防灰雾效应,可作为防灰雾剂;(2)氧化石墨烯在化学增感过程中,在达到平衡后,具有一定的增感效应;(3)氧化石墨烯在光谱增感过程中,随着染料吸附时间增加,对乳剂的增感作用愈明显,具有增感效应和防灰雾功能。By using of the double-jet apparatus controlled by a microcomputer, AgBrI micro-crystals emulsion were prepared and a certain amount of graphene oxide （GO） was added respec-tively to one emulsion during chemical sensitization and another during spectral sensitization to obtain two emulsions of cooperative sensitization. Sensitometric results from these emulsions showed： （1） GO had evident antifogging effect in chemical sensitization and could be used as anti-fogging agent; （2） in chemical sensitization, a higher level of sensitization was reached without any substantial increase in the fog level when GO＇s adsorption and desorption reach equilibrium; （3） sensitizing effect getting stronger with increasing of dye adsorption time when GO added in spectral sensitization, so GO could be used as antifogging agent and sensitizing agent.

关 键 词：氧化石墨烯 卤化银 增感效应 光谱增感 化学增感 

分 类 号：TQ57[化学工程—精细化工]