دراسة مركز التألق Ce2 في بلورة LYSO النقية و المشوبة بالسيريوم عند الإثارة باستخدام ليزر He-Cd325nm مستمر في مجال درجات الحرارة المنخفضة

الملخص EN

This study has shown Absorption bands releted to Ce centers in LYSO pure and Ce dopped and luminescence bands at 480nm intensity increase with temperature.

The FWHM increases.

Spatial distribution centers for Cerium centers and electronic traps (oxygen vacancies) at short distances to form complexes defects, energy activation 49meV, the process of Center quenching Ce2 at, T>140K.

STE and STH localized and formed nearby the cerium ions, and the energy transfer process to centers Ce2.