Год выпуска: 2014 Автор: Suchinder K. Sharma Издательство: LAP Lambert Academic Publishing Страниц: 232 ISBN: 9783659296055
Описание
Strontium aluminate systems (Bandgap ? 6.5eV) are versatile phosphor hosts. They are capable of producing luminescence in different regions of e.m.spectrum. Properly prepared, well crystallized Sr -Al-O phosphors are chemically more stable and are set to replace traditional IIA- VIB compounds (ZnS, ZnSe,CdS, CdSe,etc.)in various potential applications like in optoelectronic devices, dosimetry, solid-state lighting, quantum cutting applications etc. Strontium aluminate phosphors can have various crystalline phases like Sr3Al2O6, SrAl2O4, Sr4Al14O25, SrAl4O7, SrAl12O19,etc. with different crystal structures and are full of opportunities for phosphor engineers.Present work deals with synthesis of different Sr-Al-O phosphors via economical, time saving, single step combustion procedure followed by studies on their complex luminescence processes using spectroscopic techniques. The defect dynamics is studied using ESR and thermally stimulated lumienscence techniques. The present work is...
