Cho Er-Chieh, Li Chiu-Ping, Huang Jui-Hsiung, Lee Kuen-Chan, Huang Jen-Hsien
†Department of Clinical Pharmacy, School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan.
‡Department of Green Material Technology, Green Technology Research Institute, Chinese Petroleum Corporation (CPC Corporation), Kaohsiung, Taiwan.
ACS Appl Mater Interfaces. 2015 Jun 3;7(21):11668-76. doi: 10.1021/acsami.5b03159. Epub 2015 May 21.
We have synthesized conductive nanocomposites composed of multiwalled carbon nanotubes (MWCNTs) and Au nanoparticles (NPs). The Au NPs with an average size of approximately 4.3 nm are uniformly anchored on the MWCNT. After being exposed to microwave (MW) plasma irradiation, the anchored Au NPs melt and fuse, leading to larger aggregates (34 nm) that can connect the MWCNT forming a three-dimensional conducting network. The formation of a continuous MWCNT network can produce more a conductive pathway, leading to lower sheet resistance. When the Au-MWCNT is dispersed in the highly conductive polymer, poly(ethylene dioxythiophene):polystyrenesulfonate (
PSS), we can obtain solution-processable composite formulations for the preparation of a flexible transparent electrode. The resulting Au-MWCNT/PEDOT:PSS hybrid films possess a sheet resistance of 51 Ω/sq with a transmittance of 86.2% at 550 nm. We also fabricate flexible organic solar cells and electrochromic devices to demonstrate the potential use of the as-prepared composite electrodes. Compared with the indium tin oxide-based devices, both the solar cells and electrochromic devices with the composites incorporated as a transparent electrode deliver comparable performance.
我们合成了由多壁碳纳米管（MWCNT）和金纳米颗粒（NP）组成的导电纳米复合材料。平均尺寸约为4.3纳米的金纳米颗粒均匀地锚定在多壁碳纳米管上。在暴露于微波（MW）等离子体辐射后，锚定的金纳米颗粒熔化并融合，形成更大的聚集体（34纳米），这些聚集体可以连接多壁碳纳米管，形成三维导电网络。连续的多壁碳纳米管网络的形成可以产生更多的导电路径，从而导致更低的薄层电阻。当金-多壁碳纳米管分散在高导电聚合物聚（3,4-乙撑二氧噻吩）：聚苯乙烯磺酸盐（PEDOT：PSS）中时，我们可以获得可溶液加工的复合配方，用于制备柔性透明电极。所得的金-多壁碳纳米管/PEDOT：PSS混合膜在550纳米处的薄层电阻为51Ω/sq，透过率为86.2%。我们还制造了柔性有机太阳能电池和电致变色器件，以展示所制备的复合电极的潜在用途。与基于氧化铟锡的器件相比，将该复合材料用作透明电极的太阳能电池和电致变色器件都具有相当的性能。
