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The idea for this book arose out of the realization that, although
excellent surveys and a phosphor handbook are available, there is
no single source covering the area of phosphate based phosphors
especially for lamp industry. Moreover, as this field gets only
limited attention in most general books on luminescence, there is a
clear need for a book in which attention is specifically directed
toward this rapidly growing field of solid state lighting and its
many applications. This book is aimed at providing a sound
introduction to the synthesis and optical characterization of
phosphate phosphor for undergraduate and graduate students as well
as teachers and researchers. The book provides guidance through the
multidisciplinary field of solid state lighting specially phosphate
phosphors for beginners, scientists and engineers from
universities, research organizations, and especially industry. In
order to make it useful for a wide audience, both fundamentals and
applications are discussed, together.
The idea for this book arose out of the realization that, although
excellent surveys and a phosphor handbook are available, there is
no single source covering the area of phosphate based phosphors
especially for lamp industry. Moreover, as this field gets only
limited attention in most general books on luminescence, there is a
clear need for a book in which attention is specifically directed
toward this rapidly growing field of solid state lighting and its
many applications. This book is aimed at providing a sound
introduction to the synthesis and optical characterization of
phosphate phosphor for undergraduate and graduate students as well
as teachers and researchers. The book provides guidance through the
multidisciplinary field of solid state lighting specially phosphate
phosphors for beginners, scientists and engineers from
universities, research organizations, and especially industry. In
order to make it useful for a wide audience, both fundamentals and
applications are discussed, together.
"Cold" light such as that emitted by a fluorescent lamp, surrounds
us and aids our comfortable life. Nevertheless, a shadow of
extinction has been cast over present fluorescent lamps. Waste
electrical and electric equipment (WEEE) and restriction of the use
of certain hazardous substances in electrical and electric
equipment (RoHS) directives restrict the use of hazardous
substances (lead, mercury, cadmium and chromium, etc.) in the
manufacture of electrical and electronic equipment. After July
2006, electrical and electronic equipment containing such harmful
chemicals can not be introduced to the European market. Although
fluorescent lamps, which are based on a mercury-discharge, were not
the object of the present restrictions, their use of mercury will
be prohibited in the near future. Consequently, demand for new
mercury free lamp materials for modern illuminating engineering
have therefore increased recently. In concern to this issue, we had
focused on synthesis of some selected rare earth activated light
emitting materials (phosphors) from halosulphate, phosphate,
halophosphate, oxides and fluoride materials. Aim of these
materials for mercury free lamps applications.
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