| Formation of binary silver sulfide clusters and sulfur sensitization of photographic process |
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| 作者姓名： | 彭必先 崔卫东 于忠德 高振 朱起鹤 孔繁敖 |
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| 作者单位： | Institute of Photographic Chemistry，Chinese Academy of Sciences，Beijing 100101，China，Institute of Photographic Chemistry，Chinese Academy of Sciences，Beijing 100101，China，State Key Laboratory of Molecular Reaction Dynamics，Institute of Chemistry，Chinese Academy of Sciences，Beijing 100080，China，State Key Laboratory of Molecular Reaction Dynamics，Institute of Chemistry，Chinese Academy of Sciences，Beijing 100080，China，State Key Laboratory of Molecular Reaction Dynamics，Institute of Chemistry，Chinese Academy of Sciences，Beijing 100080，China，State Key Laboratory of Molecular Reaction Dynamics，Institute of Chemistry，Chinese Academy of Sciences，Beijing 100080，China |
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| 摘 要： | Formation of silver sulfide binary cluster ions,as well as the effects of silver and sulfur content proportion,the cluster size range,the influence of laser fluence,the UV laser photolysis,etc.,was studied with the laser ablation method and a tandem time-of-flight mass spectrometer.The results show that there exist two different forms of positively charge-bearing cluster ions;(Ag2S)n Ag] + and (Ag2S)n-1 Ag3]+.The most possible forms of the sulfur sensitization centers acting as traps of photoelectrons are Ag2S] +, Ag2S Ag] +, Ag2S Ag3]+ and the analogs.
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| 收稿时间： | 10 October 1996 |
Formation of binary silver sulfide clusters and sulfur sensitization of photographic process |
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| Bixian Peng,Weidong Cui,Zhongde Yu,Zhen Gao,Qihe Zhu,Fan’ao Kong.Formation of binary silver sulfide clusters and sulfur sensitization of photographic process[J].Science in China(Chemistry),1997,40(3):309-315. |
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| Authors: | Bixian Peng Weidong Cui Zhongde Yu Zhen Gao Qihe Zhu Fan’ao Kong |
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| Institution: | (1) Institute of Photographic Chemistry, Chinese Academy of Sciences, 100101 Beijing, China;(2) State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, 100080 Beijing, China |
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| Abstract: | Formation of silver sulfide binary cluster ions,as well as the effects of silver and sulfur content proportion,the cluster size range,the influence of laser fluence,the UV laser photolysis,etc.,was studied with the laser ablation method and a tandem time-of-flight mass spectrometer.The results show that there exist two different forms of positively charge-bearing cluster ions;(Ag2S)n Ag] + and (Ag2S)n-1 Ag3]+.The most possible forms of the sulfur sensitization centers acting as traps of photoelectrons are Ag2S] +, Ag2S Ag] +, Ag2S Ag3]+ and the analogs. |
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| Keywords: | Ag/S clusters laser ablation sulfur sensitization photographic process |
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