NU 2017-167
Inventors
Jiaxing Huang*
Chong Luo
Short Description
A cut-and-paste method to produce 3D graphene oxide paper architecture with recovered mechanical properties.
Background
Recent efforts have focused on forming 3D architectures from flat sheets for use in electronics, biomedical, or energy devices. Current techniques used on graphene oxide (GO) paper include folding, bending, and pasting. However, manipulation of graphene sheets can cause damage: folding causes local plastic deformation and bending creates local elastic deformation. There are limited choices of weldable thin film materials and residue free glues that can maintain native material properties when pasting sheets together and enable the ability to create new complex shapes.
Abstract
Northwestern inventors have created a method for forming origami-type 3D architectures, involving complex folding of graphene oxide (GO) paper of varying thicknesses. Despite the introduction of local deformations due to GO manipulation, the inventors demonstrate that water has the ability to heal damaged GO thin films, releasing stress in strained GO structures and acting as a glue to paste GO papers together. The cut-and-paste method can create complex 3D GO architectures or functional GO-based actuators that cannot otherwise be produced from traditional folding and bending techniques. The cut-and-paste approach uses only water without other additives. Furthermore, the method is able to quickly recover mechanical properties and the strength of damaged GO papers. One application using this method is the preparation of GO-based actuators using infrared light irradiation for electronics.
Applications
Advantages
Publications
Luo C, Yeh CN, Lopez Baltazar J, Tsai CL and Huang J (2018) A Cut-and-Paste Approach to 3D Graphene Oxide-based Architectures. Advanced Materials. 30: 1706229.
IP Status
A provisional patent application has been filed.