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Optical and physical properties of silver colour centres in microcrystals in silver bromide filmsстатья
Информация о цитировании статьи получена из
Scopus,
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 12 октября 2013 г.
- Авторы: Chernov S.F., Zakharov V.N.
- Журнал: Journal of Photographic Science
- Том: 44
- Номер: 2
- Год издания: 1996
- Первая страница: 50
- Последняя страница: 53
- Аннотация: Results are presented of investigations of silver colour centres of molecular and colloidal types arising from the deep photolysis of AgBr microcrystals in ultra-fine-grain emulsions. Using experimental data connecting the position of the absorption maximum of first, secondary and ''limited'' colour centres, their dimensions and the size of the AgBr crystals, values of solubility, partial degree of solubility and surface tension of Ag in AgBr are calculated. Dependence of these values on the dimensions of the AgBr crystals are studied. It is shown that the surface tension increases with the number of atoms in the colioidal particles. The solubility of Ag changes by 6 orders of magnitude as the colloidal particles decrease from massive to atomic size. Good agreement is shown between the experimental results and the predictions of thermodynamic theory for the nucleation and growth of a new phase. The possibility of a photostimulated phase transition from molecular centers to colloidal ones is considered.
- Добавил в систему: Захаров Валерий Николаевич