Development of Yttrium-Dihydride Film for Use Cold Cathode Lamps

概要

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In this paper, we examine the research and discovery of a highly efficient electrode material which we called yttrium-dihydride.This mateerial is effective in a cold cathode lamp which is illuminant.The composition of crystal yttrium-dihydride(YH_x)film was compared from the optical reflectivity.A cold cathode lamp with a tube of 63mm length and an outside diameter of 2.6mm was fabricated for the experment, and the glow-discharge voltage was measured to evaluate the performance of the electrode using the YH_x film.The lamp current was set at 5 mA for the measurement.The lamp voltage in the nickel electrode for the reference lamp was 220 V.The lamp voltage in the YH_x electrode was 169V.The yttrium-dihydride is revealed to be a more highly emission efficient material.In addition, the lamp voltage remained constant for more than 7, 500h, thus demonstrating that this material is extremely stable.
社団法人応用物理学会の論文
2000-08-15