INOR 260 |
| Particles in the nanometer-size range in recent years have received an enormous amount of attention, as their properties are substantially different from those of the bulk material. One of examples of such system is AgBr nanocrystals. They are used as dispersion in transparent polymeric films. Such materials are promising for displays, optical filters and other optoelectronic devices. One of significant problems intensely investigated are the main features of fast formation of these particles under external influence. Up to this moment there exists a lot of experimental data which indicate the possibility of high speed electron injection into the grain based on both inorganic and organic salts of silver. These phenomena can not be described by the use of traditional schemes of silver nucleation containing ionic steps of the process, since the experimentally observed speeds of electron injection into the grain are six orders of magnitude higher than the ones necessary for ionic processes. In this paper we will continue consideration of the most important aspects of ultra-fast reduction of AgBr nanocrystals, placed into redox solution, under the action of intensive actinic flash. |
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Nanoscience: Applications
7:00 PM-10:00 PM, Sunday, August 19, 2007 BCEC -- Exhibit Hall - B2, Poster
Division of Inorganic Chemistry |