| Автор | L G Grigorjeva |
| Автор | E A Kotomin |
| Автор | D K Millers |
| Автор | R I Eglitis |
| Дата выпуска | 1995-02-13 |
| dc.description | The decay kinetics of the excitonic luminescence observed at 2.5 eV in AgCl after pulsed laser irradiation was measured in wide temperature (10-200 K), time (20 ns-10<sup>-2</sup> s) and luminescence intensity intervals. It is shown that, at low temperatures, the decay of luminescence is due to the static tunnelling recombination of unidentified shallow electron centres (with a wavefunction radius of about 30 AA) with immobile self-trapped holes. At temperatures above 80 K the relevant luminescence decay starts to differ from that at 10 K and does not obey the usual exponential or second-order kinetics; it was interpreted as diffusion-controlled annihilation within close (geminate) Frenkel pairs of radiation defects. These latter are assumed to be Ag<sup>2+</sup>V<sub>c</sub><sup>-</sup> and interstitial silver atoms Ag<sub>i</sub><sup>0</sup>, respectively. Silver atoms are characterized by the 0.15 eV activation energies of hops and a small wavefunction radius of about 1 AA. Thermal quenching of this luminescence is discussed; its activation energy (0.33 eV) corresponds to cation vacancy migration. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | The decay kinetics of excitonic luminescence in AgCl crystals |
| Тип | paper |
| DOI | 10.1088/0953-8984/7/7/027 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 7 |
| Первая страница | 1483 |
| Последняя страница | 1491 |
| Аффилиация | L G Grigorjeva; Inst. of Solid State Phys., Latvia Univ., Riga, Latvia |
| Аффилиация | E A Kotomin; Inst. of Solid State Phys., Latvia Univ., Riga, Latvia |
| Аффилиация | D K Millers; Inst. of Solid State Phys., Latvia Univ., Riga, Latvia |
| Аффилиация | R I Eglitis; Inst. of Solid State Phys., Latvia Univ., Riga, Latvia |
| Выпуск | 7 |
