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Nanostructured transparent conductive films: Fabrication, characterization and applications

机译：纳米结构透明导电膜：制备，表征和应用

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摘要

Commercial indium tin oxide (ITO) has several drawbacks for optoelectronic applications such as high cost due to indium scarcity and high temperature deposition process, mechanical brittleness, and the complicated manufacturing process where lithographic patterning is needed. Its brittle nature can lead to cracking when used in applications involving bending, such as touch screens and flexible displays. Therefore, novel transparent conducting films (TCFs) based on nanomaterials with a similar or improved optoelectronic performance and good mechanical flexibility are needed for next-generation stretchable and wearable devices. Carbon nanotubes, graphene and metallic nanowires have been explored as alternatives, and they show great promise for a wide variety of optoelectronic applications. In particular, graphene films have a higher transmittance over a wider wavelength range than single-walled carbon nanotube (SWNT) films. For equivalent sheet resistance, the graphene films exhibit optical transmittance comparable to that of ITO in visible wavelength, but far superior transmittance in infrared spectral region. This article provides the state-of-the-art reviews on the synthesis, optoelectronic properties, applications and challenges of these nanostructured materials for fabricating TCFs.
机译：商业化的铟锡氧化物（ITO）对于光电应用具有几个缺点，例如由于铟稀缺和高温沉积过程而导致的高成本，机械脆性以及需要光刻图案化的复杂制造过程。当用于涉及弯曲的应用（例如触摸屏和柔性显示器）中时，其脆性会导致破裂。因此，下一代可拉伸和可穿戴设备需要具有相似或改进的光电性能和良好机械柔韧性的基于纳米材料的新型透明导电膜（TCF）。碳纳米管，石墨烯和金属纳米线已被探索为替代品，它们显示出广泛的光电应用前景。特别地，石墨烯膜比单壁碳纳米管（SWNT）膜在更宽的波长范围内具有更高的透射率。对于同等的薄层电阻，石墨烯薄膜在可见光波长下的透光率可与ITO媲美，但在红外光谱区的透光率则要好得多。本文提供了有关这些纳米结构材料用于制造TCF的合成，光电性能，应用和挑战的最新技术评论。

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