Fundamental and practical issues for phenylenevinylene-based polymer light-emitting diodes
Fundamental and practical issues for phenylenevinylene-based polymer light-emitting diodes
复制标题
苯撑亚乙烯基聚合物发光二极管的基础和实际问题
DOI：
10.1109/16.605465
复制
发表时间：
1997
影响因子：
3.1
通讯作者：
F. Papadinitrakopoulos
中科院分区：
文献类型：
--
作者：
L. Rothberg;M. Yan;E. W. Kwock;T. Miller;M. Galvin;S. Son;F. Papadinitrakopoulos
在苯乙烯聚合物的光物理测量的概述是提出和评估的影响有机电致发光材料的设计光。讨论了器件效率的内在限制，并表明聚合物的合成对于获得具有减少聚集猝灭发光的形态至关重要。我们还记录了在合成过程中或随后的激发态反应引起的聚合物氧化，导致发光猝灭缺陷，这可以显着降低荧光效率。最后，我们简要回顾了工程高效、长寿命聚合物发光二极管（LED）的其他考虑因素。
An overview of photophysical measurements in phenylenevinylene polymers is presented and evaluated in light of the implications for organic electroluminescent materials design. Intrinsic limitations placed on device efficiency are discussed and we show that the polymer synthesis is critical to obtaining morphologies which exhibit reduced aggregation quenching of luminescence. We also document that oxidation of the polymer caused during the synthesis, or by subsequent excited state reactions, leads to luminescence quenching defects which can dramatically reduce fluorescence efficiency. We conclude with a brief review of other considerations in engineering efficient, long-lived polymer light-emitting diodes (LED's).