| Автор | C Jardin |
| Автор | B Canut |
| Автор | S M M Ramos |
| Дата выпуска | 1996-08-14 |
| dc.description | The luminescence of during and irradiation was measured in the 190 - 820 nm wavelength range. The luminescence evolution with the ion fluence exhibits two behaviours : (i) at low fluence, the amount of centres increases; (ii) at high fluences, these defects are completely (F centres) or partially ( centres) annihilated. This phenomenon results from two concomittant mechanisms : a conversion between F and defects and a destruction of both luminescent species resulting from the radiation-induced damage. By using a simple model we have determined the cross sections associated with creation and annihilation of the centres. The irradiated samples were also investigated by cathodoluminescence and Auger electron spectroscopy. A higher concentration of structural defects and centres is evidenced at the sample area previously irradiated by ions, leading to an unsteady regime of the surface potential under electron excitation. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | The luminescence of sapphire subjected to the irradiation of energetic hydrogen and helium ions |
| Тип | paper |
| DOI | 10.1088/0022-3727/29/8/002 |
| Electronic ISSN | 1361-6463 |
| Print ISSN | 0022-3727 |
| Журнал | Journal of Physics D: Applied Physics |
| Том | 29 |
| Первая страница | 2066 |
| Последняя страница | 2070 |
| Аффилиация | C Jardin; Département de Physique des Matériaux (UMR CNRS 5586), Université Claude Bernard Lyon I, 69622 Villeurbanne Cedex, France |
| Аффилиация | B Canut; Département de Physique des Matériaux (UMR CNRS 5586), Université Claude Bernard Lyon I, 69622 Villeurbanne Cedex, France |
| Аффилиация | S M M Ramos; Département de Physique des Matériaux (UMR CNRS 5586), Université Claude Bernard Lyon I, 69622 Villeurbanne Cedex, France |
| Выпуск | 8 |
