【摘要】 测得了Y₂O₃:Eu³⁺压片在直流电压作用下的紫外发射谱,并证明它不是Eu³⁺的特征谱,而是N₂分子在这个波段的发射谱。观察了这组紫外光谱的亮度波形,其特征与同样样品在相同的激发方式下发射的Eu³⁺的亮度波形的特征相同。与ZnS:Cu电致发光特性作了比较,说明在电场作用下Y₂O₃:Eu³⁺的发光是一个“次级效应”,空气放电起了重要作用。更多还原

【Abstract】 It was found that V₂O₃: Eu³⁺ lamina excited by a d. c. electric voltage emits the ultra-voilet emission which was shown that it is not the characteristic spectrum of Eu³⁺, but the emission spectrum of N₂ molecules in this region. The brightness waveform of the ultra-violt emission was observed and found that it behaves as same as the brightness waveform of the characferistic spectrum of Eu³⁺ emited by the same sample by the same excited method. Compared with the electroluminescence behaviors of ZnS: Cu, it is clear that the Luminescence from Y₂O₃: Eu³⁺ lamina excited by d. c electric Voltage is a "Secondary effect", and the air dicharge plays an important role in it.更多还原