【摘 要】
:
以多孔氧化铝为模板,将可溶性发光聚合物聚(2-甲氧基-5-(2′-乙基己氧基)-1, 4-对苯乙炔) (MEH-PPV)镶嵌在纳米孔中,制备出高发光效率的纳米发光聚合物阵列,其光学特性与MEH-
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以多孔氧化铝为模板,将可溶性发光聚合物聚(2-甲氧基-5-(2′-乙基己氧基)-1, 4-对苯乙炔) (MEH-PPV)镶嵌在纳米孔中,制备出高发光效率的纳米发光聚合物阵列,其光学特性与MEH-PPV薄膜显著不同.纳米孔内的MEH-PPV分子链形成链束,链束中的分子链数目依赖于制备纳米MEH-PPV阵列所用溶液的浓度.相对于稀溶液,在由浓溶液制备的纳米MEH-PPV阵列中,MEH-PPV链束的分子链数目较多,链间作用使MEH-PPV的能带展宽,能隙减小,因而浓溶液获得的纳米MEH-PPV阵列的光致发光峰红移.热处理纳米MEH-PPV阵列的PL谱表明,纳米孔内的聚合物分子链的弛豫运动受到限制.
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