An Electroluminescent Device Using Sintered Manganese-Doped Zinc Sulfide Phosphor Ceramics
Recently, we have proposed new electroluminescent (EL) devices using a sintered manganese-doped zinc sulfide phosphor ceramic which acts not only as the active layer but also as the substrate . The initial research clarified that the phosphor ceramic electroluminescent (PCEL) devices had advantages in regard to low cost, low dc voltage driving, breakdown-free operation and high legibility [1,2]. However, it has not been satisfactorily considered to optimize preparation conditions of the PCEL devices. In this paper, we will report the EL characteristics of the PCEL devices using ceramics fabricated by a newly developed method and will also describe some of the aging characteristics of the devices driven under various modes of excitation voltages.
KeywordsExcitation Voltage Aging Characteristic Luminous Efficiency Electroluminescent Device Cross Sectional Structure
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