Abstract The work function reduction of various transparent conducting materials with 8-hydroxyquinolinolato-lithium (Liq) was investigated using in situ ultraviolet photoelectron spectroscopy (UPS) measurements. The work function of single-walled carbon nanotubes (SWCNTs), poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS), and indium tin oxide (ITO), was significantly reduced by 1.00, 1.08 and 0.50 eV by depositing a 3.5 nm-thick Liq layer. This originates from the interface dipole having its negative pole pointed toward each electrode. These work function reductions would enhance electron injection or extraction in inverted organic electronic devices. However, the high electron injection barriers from electrodes to Liq itself were observed (2.43–2.53 eV), and thus an ultrathin Liq layer should be used for efficient electron injection through tunneling mechanism.

中文翻译：

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使用 8-羟基喹啉基锂降低功函数用于高效倒置器件

摘要 使用原位紫外光电子能谱 (UPS) 测量研究了用 8-羟基喹啉锂 (Liq) 降低各种透明导电材料的功函数。单壁碳纳米管 (SWCNT)、聚 (3,4-乙烯二氧噻吩):聚(苯乙烯磺酸盐) (PEDOT:PSS) 和氧化铟锡 (ITO) 的功函数显着降低了 1.00、1.08 和 0.50 eV 通过沉积 3.5 nm 厚的 Liq 层。这源于其负极指向每个电极的界面偶极子。这些功函数减少将增强倒置有机电子器件中的电子注入或提取。然而，观察到从电极到 Liq 本身的高电子注入势垒（2.43-2.53 eV），