Synthesis and Luminescence Properties of Poly[2-(9,9-dihexylfluorene-2-yl)-1,4-phenylenevinylene] and Its Copolymers Containing 2-(2-Ethylhexyloxy)-5-methoxy-1,4-phenylenevinylene Units
作者:Byung-Hee Sohn、Kyungkon Kim、Don Soo Choi、Young Kwan Kim、Sae Chae Jeoung、Jung-Il Jin
DOI:10.1021/ma011636t
日期:2002.4.1
A PPV derivative bearing the dihexylfluorenyl pendants, poly[2-(9,9-dihexylfluorene-2-yl)-1,4-phenylenevinylene] (DHF−PPV) and its copolymers containing the dialkoxy-substituted phenylenevinylene units, i.e., poly[(2-(9,9-dihexylfluorene-2-yl)-1,4-phenylenevinylene)-co-(2-(2-ethylhexyloxy)-5-methoxy-1,4-phenylenevinylene)s], were prepared, and luminescence properties of the light-emitting diodes (LEDs)
一个带有二己基芴基侧基的PPV衍生物,聚[2-(9,9-二己基芴-2-基)-1,4-苯撑亚乙烯基](DHF-PPV)及其共聚物,含有二烷氧基取代的苯撑亚乙烯基单元,即聚[ (2-(9,9-二己基嘧啶-2-基)-1,4-亚苯基亚乙烯基) -共制备了-(2-(2-乙基己氧基)-5-甲氧基-1,4-亚苯基亚乙烯基)s,并研究了用它们制造的发光二极管(LED)的发光特性。共聚物92.5 DHF / 7.5 MEH-PPV和50.5 DHF / 49.5 MEH-PPV分别包含7.5和49.5 mol%的二烷氧基共聚单体单元。LED器件的结构为ITO / PEDOT(25 nm)/聚合物(80 nm)/ Ca(50 nm)/ Al(50 nm)。对于DHF-PPV和这两种共聚物,器件的最大发射光波长为519 nm(绿色),560 nm(黄色)和585 nm(橙红色)。开启电场按DHF-PPV(0.54