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Proceedings Paper

The deep electronic trap effect of cyanine dye on the surface structure of AgCl microcrystal
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Paper Abstract

In this paper, the influences of cyanine dye on the photoelectron decay of silver chloride micro-crystal have been studied with Microwave absorption and dielectric spectrum detection technology. The free photoelectron decay of silver halide sensitized becomes faster than that of pure silver halide, and the FDT are 86ns and 109ns for silver chloride sensitized(5.0ml/40g AgCl emulsion) and unsensitized, respectively. The absorption peak of the dye is at about 550nm, having about 50 nm red shift compared with that in methanol. This indicates that J- aggregate is formed on micro-crystal surface, moreover the peak of dye J-aggregate becomes sharper, the width of absorption peak narrower with the increasing of the concentration of dye. Dye J-aggregate increases the concentration of deep electronic trap in the surface of silver halide micro-crystals.

Paper Details

Date Published: 3 February 2009
PDF: 9 pages
Proc. SPIE 7160, 2008 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Applications, 71603B (3 February 2009); doi: 10.1117/12.806194
Show Author Affiliations
Fenghua Xiang, Langfang Normal College (China)
Xiaowei Li, Hebei Univ. (China)
Jixian Zhang, Hebei Univ. of Technology (China)


Published in SPIE Proceedings Vol. 7160:
2008 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Applications

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