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Control of the Surface Composition of a Conducting-Polymer Complex Film to Tune the Work Function

机译:控制导电聚合物复合膜的表面成分以调节功函数

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摘要

Control of surface composition of a hole-injecting conducting polymer complex, poly(3,4-ethylenedioxy thiophene) (PEDOT) doped with a polystyrene sulfonate (PSS) has been conducted in the spin-cast films. We found that the work function of the polymeric complex films formed via single spin-coating can be greatly increased up to 5.44 eV by increasing the surface concentration of the PSS dopant. As a result, we improved the device efficiency and the lifetime of green emitting polymer light-emitting diodes (PLEDs). This implies that the PSS surface layer of the films spin-cast from the conducting polymer complexes plays a key role in making high performance PLEDs.
机译:已经在旋涂膜中进行了空穴注入导电性聚合物络合物,掺杂有聚苯乙烯磺酸盐(PSS)的聚(3,4-亚乙二氧基噻吩)(PEDOT)的表面成分的控制。我们发现,通过增加PSS掺杂剂的表面浓度,可以将通过单次旋涂形成的聚合物复合膜的功函大大提高至5.44 eV。结果,我们提高了绿色发光聚合物发光二极管(PLED)的器件效率和寿命。这意味着由导电聚合物络合物旋铸而成的薄膜的PSS表面层在制造高性能PLED中起着关键作用。

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