Controllable Synthesis of Tunable Microstructures of Self-Supporting Graphene Films from Opened Bubble to Cube via in Situ Template-Modulating,ACS Applied Materials & Interfaces

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Controllable Synthesis of Tunable Microstructures of Self-Supporting Graphene Films from Opened Bubble to Cube via in Situ Template-Modulating
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2017-11-20 00:00:00 , DOI: 10.1021/acsami.7b13117
Na Li ₁ , Qiao Yang ₁ , Xing Liu ₁ , Xuankai Huang ₁ , Haiyan Zhang ₁ , Chengxin Wang ₂

Affiliation

Three-dimensional (3D) microstructured building units have replaced layer-to-layer stacked designs in transparent graphene films to fully exploit the advantages of two-dimensional graphene. However, it is still challenging to precisely control the size and microstructures of these building blocks to develop multifunctional graphene-based materials that satisfy the performance requirements of diverse applications. In this study, we propose a controllable method to regulate the microstructures of building units to form structures ranging from opened bubbles and cubes, while the size decreased from 20 to 3 μm, via an in situ template-modulating technology. NaCl was used as either a liquid or solid template by changing the dc bias. The reduced size and dense arrangement of the building units not only provide an improved mass loading for the transparent films but also build multiple pathways for fast ion/electron transmission, enhancing their promise for various practical applications. Generally, we provide a convenient protocol for finely regulating the microstructure and size of these building units, resulting in multifunctional films with a controllable transmittance, which enables the use of these graphene-based architectures as transparent electrodes in various applications and extends the family of multifunctional materials that will present new possibilities for electronics and other devices.

中文翻译：

通过原位模板调制可控制合成自支撑石墨烯薄膜从开放气泡到立方体的可调谐微结构

三维（3D）微结构建筑单元已替换了透明石墨烯薄膜中的逐层堆叠设计，以充分利用二维石墨烯的优势。但是，精确控制这些构件的尺寸和微结构以开发满足各种应用性能要求的多功能石墨烯基材料仍然是一项挑战。在这项研究中，我们提出了一种可控的方法，通过原位模板调节技术来调节建筑单元的微结构，以形成从开阔的气泡和立方体开始的结构，而尺寸从20微米减小到3微米。通过更改直流偏置，将NaCl用作液体或固体模板。建筑单元尺寸的减小和排列的密集，不仅为透明膜提供了更好的质量负载，而且为快速的离子/电子传输建立了多条路径，从而增强了其在各种实际应用中的希望。通常，我们提供一种方便的协议来精细调节这些建筑单元的微观结构和尺寸，从而产生具有可控透射率的多功能薄膜，从而使这些基于石墨烯的体系结构可以在各种应用中用作透明电极，并扩展了多功能系列这些材料将为电子产品和其他设备提供新的可能性。

更新日期：2017-11-21

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