In the work borate glasses with additives of copper and fluorine is considered. The luminescence quantum efficiency of these glasses reaches 50 % in the visible range. Therefore the concerned borate glass is the promising material for solar cell down-convertors, sensitive elements of the spark sensors and UV detectors and as a cheap phosphor for warm-white LEDs. All that makes boron glass doped with copper ions promising for use in devices such as spark sensors, down-converters, cheap phosphors for white leds.
It is shown that glass fibers doped with luminescent molecular clusters of silver, cadmium and lead chalcogenides, or copper (I) can be used for the efficient radiation conversion of ultraviolet (UV) radiation to the visible spectral region. The advantages of radiation trapping in fibers by the luminescent centers and of spectral conversion are discussed. The excitation and luminescence spectra of luminescent fibers are presented. Analysis of application areas of the luminescent glasses and fibers is performed. The construction of the sensitive element for sensor models for electrical spark and UV radiation detection is described. The characteristics of the models of sensors for electrical spark and UV radiation detection are presented.
The research of the luminescent properties of the inorganic glasses doped with copper molecular clusters that can be used as a sensitive medium of the temperature sensors is presented. The luminescent spectra of the borate and phosphate glasses in the temperature range 77-623 K are examined. The big luminescent thermochromism for borate glasses is observed: from 293K to 623K the luminescent band shift is found out to be 110nm.
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