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题名: Gas-phase cluster cations generated by direct laser ablation on AgBr/S mixture
作者: Cui, WD;  Peng, BX;  Liu, P;  Gao, Z;  Zhi, QH;  Kong, FA
关键词: Ag/S clusters ;  Ag/Br/S clusters ;  photographic process ;  photoelectron trap
刊名: SCIENCE IN CHINA SERIES B-CHEMISTRY
发表日期: 1998-04-01
卷: 41, 期:2, 页:182-186
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: The clusters produced by direct laser ablation on the sample made of mixtures of silver bromide and sulfur powder in different molar ratios have been studied with a home-built tandem time-of-flight mass spectrometer. The results showed that Ag3S+ was still formed even if the content of AgBr was very high in the samples (AgBr:S = 100:5). Additionally, the clusters, the general formula of which is AgmSp+ (m = 1-3, p = 1-5), were formed, predominantly AgS4+. The above binary clusters could combine AgBr units to produce ternary clusters. This work provided a further experimental proof for the argument proposed by the present authors that Ag3S+ and the analogs are deep photoelectron traps of photosensitive silver halide emulsion during the exposure process.
关键词[WOS]: LATENT IMAGE SPECKS ;  SULFUR SENSITIZATION ;  SENSITIVITY CENTERS ;  FOG
语种: 英语
WOS记录号: WOS:000073919800010
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138189
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Acad Sinica, Inst Photog Chem, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing 100080, Peoples R China

Recommended Citation:
Cui, WD,Peng, BX,Liu, P,et al. Gas-phase cluster cations generated by direct laser ablation on AgBr/S mixture[J]. SCIENCE IN CHINA SERIES B-CHEMISTRY,1998,41(2):182-186.
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