基于螺噁嗪化合物光致变色过程中的光开关特性,将光致变色螺吲哚菲并噁嗪化合物(SO)掺杂到主体电致发光材料聚[2-甲氧基-5-(2′-乙基己氧基)-对亚苯基亚乙烯](MEH -PPV)中,制成结构为ITO/PEDOT∶PSS/MEH - PPV∶SO/LiF/Al的发光二极管,初步探讨了光照对发光二极管性质的影响.通过光致变色反应,SO的开环成色体可充当注入载流子的陷阱而影响二极管的性质.所以,紫外光照前后MEH - PPV发光二极管的电致发光性质,包括电流、亮度、发光强度等性质,通过螺噁嗪化合物分子的光开关特性而变化.
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