Session: Research Posters

Paper Number: 120325

120325 - Monolayer 2d Material-Polymer Nanohybrid Crystals 

Ultrathin and mechanically robust structures and devices with nanoscale dimension resolution are critical for miniaturized nanoelectromechanical systems (NEMS) and integrated circuited (IC). It is extremely challenging to achieve such structures from hybrid inorganic-organic systems because the lack of controllability of depositing/assembly organic structures. The attainment of precise fabrication control and comprehension of atomic-level interactions stands as the principal objectives of this research. The integration of zero-dimensional (0D) and one-dimensional (1D) inorganic nanomaterials with organic molecules has been extensively investigated in the form of hybrid shish-kebab structures, surface-functionalized nanoparticles, and metal-organic frameworks (MOFs). However, due to the limitations imposed by minimal lateral sizes, the characterization of individual inorganic/organic hybrid nanostructures and their application in large-scale microdevice fabrication and property exploration remain challenging. As a result, a pragmatic approach has been adopted, focusing on the exploration of macroscopic collective properties. For instance, the utilization of carbon nanotube (CNT)-based hybrid shish-kebab structures has demonstrated mechanical reinforcement, superhydrophobic surfaces, and biomimetic bone scaffolds. MOFs have garnered interest for their applications in gas storage, catalysis, supercapacitors, and more. Nevertheless, there is a clear need for a new hybrid system to enable the application of hybrid nanostructures at the nanoscale. Two-dimensional (2D) materials hold promise as a viable solution due to their atomically thin nature and potential for large-scale synthesis. While various 2D materials have been employed as crystallization templates to create hybrid nanostructures such as rGO-PE, graphene-P3HT, and MoS2-P3HT using solution-exfoliated 2D flakes, the advantage of their large lateral sizes remains untapped. To date, the synthesis of large-scale 2D materials-polymer hybrid nanostructures has not been reported. Here, we propose the utilization of monolayer two-dimensional (2D) materials, such as graphene and MoSe2, synthesized through chemical vapor deposition (CVD), as 2D atomic templates to induce the epitaxial assembly of orthorhombic polyethylene (PE) crystals. By meticulously regulating the assembly temperature and time, the growth of PE lamellar crystals can be modulated, ranging from a few nanometers to hundreds of nanometers with an accuracy of sub-nanometer resolution. Adding PE will not only increase the mechanical robustness of 2D materials in fabricating the suspended structures, but also create a dielectric layer with controlled thickness to realize ultrathin device fabrication. The incorporation of polymer nanocrystals, monolayer graphene, and MoSe2 yields a pioneering category of hybrid nanostructures, wherein the crystalline architectures of both constituents are highly controlled, thereby potentially reshaping the paradigm for manufacturing superior materials and devices with precisely engineered structures and properties.

Presenting Author: Mingyuan Sun Villanova University

Presenting Author Biography: Name: Mingyuan Sun
Institution: Department of Mechanical Engineering, Villanova University
Research: Two dimensional materials-polymer based hybrid nanostructure and its applications.

Authors:

Mingyuan Sun Villanova University
Dong Zhou Villanova University
Akash Singh University of Illinois Urbana-Champaign
Lu An Villanova University
Jan Michael Carrillo Oak Ridge National Laboratory
Jong Keum Oak Ridge National Laboratory
Miguel Fuentes-Cabrera Oak Ridge National Laboratory
Raymond Unocic Oak Ridge National Laboratory
Kunlun Hong Oak Ridge National Laboratory
Ilia Ivanov Oak Ridge National Laboratory
Christopher Rouleau Oak Ridge National Laboratory
Gang Feng Villanova University
Kai Xiao Oak Ridge National Laboratory
Jihua Chen Oak Ridge National Laboratory
Yumeng Li University of Illinois Urbana-Champaign
Liang Zhao Villanova University
Yun Li Villanova University
Bo Li Villanova University