Synthesis and optoelectronic properties of thermally cross-linkable fluorene derivative containing hole-transporting triphenylamine terminals
作者:Wen-Fen Su、Yun Chen
DOI:10.1016/j.polymer.2011.05.036
日期:2011.7
were superior to those without HTL (ITO/PEDOT:PSS/MEH-PPV/Ca/Al: 7810 cd/m2, 0.28 cd/A). In addition, the cured-VTF could replace conventional hole-injection layer (PEDOT:PSS) to reveal comparable performance (8240 cd/m2, 0.44 cd/A). Current results indicate that the VTF with four thermally cross-linkable terminal vinyl groups is a promising optoelectronic material, which is readily processed by wet processes
本文描述了一种可溶液处理和热交联的2,7-双-[4-双(4-乙烯基苯基)氨基苯基] -9,9-二己基芴(VTF)的合成及其在空穴传输层中的应用。多层聚合物发光二极管(PLED)。通过差示扫描量热法,热重分析,光谱学和循环伏安法研究了VTF的热,光物理和电化学性质。通过在180°C下加热30分钟,可以很容易地通过乙烯基使VTF交联,从而获得具有优异耐溶剂性的均质薄膜。多层PLED(ITO / PEDOT:PSS /固化后的VTF / MEH-PPV / Ca / Al)可以通过使用交联VTF的旋涂工艺轻松制造作为空穴传输层(HTL)。最大亮度(13640烛光/米2)和电流效率(0.69坎德拉/ A)均优于那些没有HTL(ITO / PEDOT:PSS / MEH-PPV /钙/铝:7810烛光/米2,0.28 CD / A )。此外,cured- VTF可以取代常规的空穴注入层(PEDOT: