摘要
通过将氧化石墨烯(Graphene Oxide,GO)与十二烷基苯磺酸钠(Sodium Dodecyl Benzene Sulfonate,SDBS)作为填料混入聚3,4-乙撑二氧噻吩∶聚苯乙烯磺酸(PEDOT∶PSS)溶液中制备了高透光率和低方块电阻的透明导电薄膜。当氧化石墨烯与PEDOT∶PSS质量比为0.02%时,薄膜获得了最佳的导电率,电阻为85Ω/□,在550nm的光波长下透光率为87%。采用不同掺杂比例的薄膜作为电极制备了有机发光二极管(OLED)器件,相比于常用的ITO电极,复合薄膜作为阳极更有利于空穴的注入和传输,所制备的器件能够得到更优的性能。这些结果表明PEDOT∶PSS和氧化石墨烯复合电极有望取代柔性OLED器件中的ITO阳极。
In this paper, highly transparent and low roughness conductive films were successfully fabricated by doping poly （3,4-ethylenedioxythiophene） ： poly（styrene sulfonate） （PEDOT ：PSS） with graphene oxide （GO） and sodium dodecyl benzene sulfonate （SDBS）. The PEDOT ： PSS hybrid film mixed with 0.02 % GO ： SDBS by weight exhibits a sheet resistance of 85 Ω/ and 87% transmittance at 550 nm. Using different ratios of PEDOT ： PSS and GO ： SDBS hybrid film as the anode, indium tin oxide （ITO）-free organic light--emitting diodes （OLEDs） were produced. Compared to ITO as the anode, using composite films as the anode can increase the ability of injection and transport of the holes in the device, and the device can achieve better performance. It is proved that such PEDOT ＂ PSS and GO ＂ SDBS hybrid film is a promising alternative to ITO anode for low cost and flexible OLED.
出处
《半导体光电》
CAS
北大核心
2015年第1期81-84,109,共5页
Semiconductor Optoelectronics
