News Academy of Engineering Sciences A.M. Prokhorov Annotation << Back Some poss ible applications of long afterglow phosphors V.A. Bolshyhin N.A. Bulychev S.A. Garelina M.A. Kazaryan E.N. Muravyev A.A. Chernov In this work, the comparative study of spectral and inertial properties of various long afterglow phosphors has been performed that resulted in discovery of photophosphors suitable for wide range of applications. In this research, the particular attention has been paid to long afterglow photophosphors possessing the ability to emit light for quite long time in dark without external power supply, just due to accumulation of solar energy in day light. These materials can be applied for purposes in extraordinary situations and also for ecological and agricultural applications. Novel physical and chemical methods of preparations of photophosphors powder materials based on acoustoplasma technique of preparation of precursor raw material with subsequent sintering to achieve the maximum value of the quantum yield. Keywords: long afterglow phosphors, spectral transformation, acoustoplasma method, powder materials Contacts: E-mail: nbulychev@mail.ru Pp. 03-09.