| Автор | G F J Garlick |
| Автор | M Springford |
| Автор | H Checinska |
| Дата выпуска | 1963-07-01 |
| dc.description | Indium sesquisulphide (In<sub>2</sub>S<sub>3</sub>) has been synthesized from its constituent elements in a closed two-zone furnace system. The sulphur pressure is controlled by the zone temperatures. Both single crystals and polycrystalline specimens show infra-red emission at 90 °K with spectral maxima at 0 79 and 0.88 μm. Excitation is achieved using shorter wavelength radiation (0.5 to 0.7 μm). After excitation at low temperatures, warming in the dark produces thermoluminescence, peaks occurring at 113 °K and 126 °K. The peaks are very sharp and follow a form expected from a bimolecular trapping mechanism, the second peak at 126 °K corresponding to a trap depth of 0.35 eV. The frequency factor obtained is about 10<sup>14</sup> sec<sup>-1</sup> and leads to trap cross sections of the order of 10<sup>-12</sup> cm<sup>2</sup>, which indicates the `giant' nature of such traps. The possible origin of these traps in the cation defective crystal lattice is discussed. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | The Infra-red Emission of Indium Sesquisulphide |
| Тип | paper |
| DOI | 10.1088/0370-1328/82/1/304 |
| Print ISSN | 0370-1328 |
| Журнал | Proceedings of the Physical Society |
| Том | 82 |
| Первая страница | 16 |
| Последняя страница | 22 |
| Аффилиация | G F J Garlick; Department of Physics, University of Hull |
| Аффилиация | M Springford; Department of Physics, University of Hull |
| Аффилиация | H Checinska; Department of Physics, University of Hull |
| Выпуск | 1 |
