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LUMINESCENT MATERIALS AND APPLICATIONS
Pages : [41] - [74]
Received : March 12, 2016; Revised April 21, 2016
Communicated by : Professor Emad M. El-Menyawy
Abstract
Short review of the past and present of luminescent materials is given to show a major phosphor’s applications in traditional display, flat panel display, lighting, medical, security etc. Multiphase micro and nanoparticle persistent phosphors are synthesized and applied for different fields including painting, medical and biological investigations. A lot of examples show a broad range of applications of persistent luminescence from bulk materials to high tech products, especially in medicine. The development of high efficiency nanosized phosphor makes it possible to propose persistent materials as very good candidates for photodynamic therapy of cancer. An artificial block from slag, concrete, and sand covered with based phosphor is prepared, and a new direction in biology for algae cultivation and artificial reef is discussed. For the first time, underwater luminescence is experimentally studied under real sea conditions. Bright blue-green long-lasting afterglow is registered at a depth of 5m.
Keywords
luminescent materials, persistent luminescence, underwater luminescence.