Here, we formulate low surface tension (∼30 mN/m) and low boiling point (∼79 °C) inks of graphene, single-wall carbon nanotubes and conductive polymer poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and demonstrate their viability for spray-coating of morphologically uniform (Sq ≈ 48 ± 3 nm), transparent conducting films (TCFs) at room temperature (∼20 °C), which conform to three dimensional curved surfaces. Large area (∼750 cm2) hybrid PEDOT:PSS/graphene films achieved an optical transmission of 67% in the UV and 64% in the near-infrared wavelengths with a conductivity of ∼104 S/m. Finally, we demonstrate the spray-coating of TCFs as an electrode on the inside of a poly(methyl methacrylate) sphere, enabling a semitransparent (around 360°) and spherical touch sensor for interactive devices.
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机译：在这里，我们配制了石墨烯，单壁碳纳米管和导电聚合物聚（3,4-乙撑二氧噻吩）：聚（苯乙烯磺酸盐）的低表面张力（〜30 mN / m）和低沸点（〜79°C）油墨（ PEDOT：PSS）并证明了其在室温（〜20°C）下喷涂形态均匀（Sq≈48±3 nm），透明导电膜（TCFs）的可行性，该膜符合三维曲面。大面积（约750 cm 2 ）混合PEDOT：PSS /石墨烯薄膜在紫外线下的光学透射率为67％，在近红外波长下的光学透射率为64％，电导率约为10 4 S / m。最后，我们演示了将TCF喷涂为聚甲基丙烯酸甲酯球体内部的电极，从而为交互式设备提供半透明（约360°）和球形触摸传感器。
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