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直流高电场中聚酰亚胺薄膜的电致发光光谱

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Abstract:

?测量电晕老化前后kapton100hn聚酰亚胺薄膜在均匀直流电场中的电致发光强度和光谱,研究了电致发光强度与外加电场强度的关系.结果表明:聚酰亚胺薄膜的电致发光强度随着外加电场强度的提高而提高.聚酰亚胺薄膜的电致发光谱由荧光区、磷光区和红光及红外三个区域组成,电致发光的阈值场强约为2.8mv/cm.电晕老化处理后,聚酰亚胺薄膜的电致发光阈值场强降低,光子的产率提高并出现新峰.这些结果是电晕老化效应的综合作用所导致的.

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