Luminescence dans les solides électroniquement actifs

Abstract
There are three basic electronic activities in phosphors and other electronically active solids. These activities are 1) orientation of spin, 2) excitation leading to radiation, 3) unilateral displacement. Atomic interaction provides, through chemical synthesis, effective means for modifying, controlling and combining these activities. Research in this field has made many physical phenomena tractable and useful, and has afforded greater understanding of the fundamental natures of solids and of luminescence.