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首页> 外文期刊>Advanced Materials >Colloidal Nanosurfactants for 3D Conformal Printing of 2D van der Waals Materials
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Colloidal Nanosurfactants for 3D Conformal Printing of 2D van der Waals Materials

机译：用于3D van der WALS材料的3D保形印刷的胶体纳米素质剂

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摘要

Printing techniques using nanomaterials have emerged as a versatile tool for fast prototyping and potentially large-scale manufacturing of functional devices. Surfactants play a significant role in many printing processes due to their ability to reduce interfacial tension between ink solvents and nanoparticles and thus improve ink colloidal stability. Here, a colloidal graphene quantum dot (GQD)-based nanosurfactant is reported to stabilize various types of 2D materials in aqueous inks. In particular, a graphene ink with superior colloidal stability is demonstrated by GQD nanosurfactants via the pi-pi stacking interaction, leading to the printing of multiple high-resolution patterns on various substrates using a single printing pass. It is found that nanosurfactants can significantly improve the mechanical stability of the printed graphene films compared with those of conventional molecular surfactant, as evidenced by 100 taping, 100 scratching, and 1000 bending cycles. Additionally, the printed composite film exhibits improved photoconductance using UV light with 400 nm wavelength, arising from excitation across the nanosurfactant bandgap. Taking advantage of the 3D conformal aerosol jet printing technique, a series of UV sensors of heterogeneous structures are directly printed on 2D flat and 3D spherical substrates, demonstrating the potential of manufacturing geometrically versatile devices based on nanosurfactant inks.
机译：使用纳米材料的印刷技术已成为一种多功能工具，用于快速原型设计和功能大规模制造功能装置。表面活性剂在许多印刷过程中起着重要作用，因为它们可以降低油墨溶剂和纳米颗粒之间的界面张力，从而改善油墨胶体稳定性。这里，据报道，基于胶体石墨烯量子点（GQD）的基质型料剂以稳定各种类型的水性油墨中的2D材料。特别地，通过PI-PI堆叠相互作用通过GQD纳米蛋白剂对具有优异胶体稳定性的石墨烯墨水，导致使用单个印刷通道在各种基板上打印多个高分辨率图案。结果发现，与常规分子表面活性剂相比，纳米胶可显着改善印刷石墨烯膜的机械稳定性，如100胶带，100次划痕和1000个弯曲循环所证明的那样。另外，印刷的复合膜利用具有400nm波长的UV光显示出改善的光电导，从纳米素转换器带隙的激发产生。利用3D共形气溶胶喷射印刷技术，一系列异构结构的UV传感器直接印在2D平板和3D球形基材上，证明基于纳米素质墨水制造几何通用装置的电位。

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  • 来源
    《Advanced Materials》 |2020年第39期|2003081.1-2003081.8|共8页
  • 作者

    Zeng Minxiang; Kuang Wenzheng; Khan Irfan; Huang Dali; Du Yipu; Saeidi-Javash Mortaza; Zhang Lecheng; Cheng Zhengdong; Hoffman Anthony J.; Zhang Yanliang;

  • 作者单位

    Univ Notre Dame Dept Aerosp & Mech Engn Notre Dame IN 46556 USA;

    Univ Notre Dame Dept Aerosp & Mech Engn Notre Dame IN 46556 USA;

    Univ Notre Dame Dept Elect Engn Notre Dame IN 46556 USA;

    Texas A&M Univ Artie McFerrin Dept Chem Engn College Stn TX 77843 USA;

    Univ Notre Dame Dept Aerosp & Mech Engn Notre Dame IN 46556 USA;

    Univ Notre Dame Dept Aerosp & Mech Engn Notre Dame IN 46556 USA;

    Texas A&M Univ Artie McFerrin Dept Chem Engn College Stn TX 77843 USA;

    Texas A&M Univ Artie McFerrin Dept Chem Engn College Stn TX 77843 USA|Texas A&M Univ Qatar Chem Engn Dept POB 23874 Doha Qatar;

    Univ Notre Dame Dept Elect Engn Notre Dame IN 46556 USA;

    Univ Notre Dame Dept Aerosp & Mech Engn Notre Dame IN 46556 USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    2D materials; 3D conformal printing; colloidal inks; nanosurfactants;

    机译：2D材料;3D共形印刷;胶体油墨;纳米胶质剂;

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