Publications by authors named "Guochuang Xu"
Article Synopsis
- Smart materials with reversible deformation show promise for applications in artificial muscles and robotics, but combining these functions remains a challenge.
- Researchers developed a graphene oxide/polyvinylidene fluoride film that can change its structure and switch between different responsive states when exposed to stimuli like IR light and moisture.
- This innovation led to the creation of an "Artificial Pupil" with adjustable light penetration and opened up possibilities for new 3D structures in material engineering and biomimetic technologies.
A high-performance actuator should be able to deliver large-shape deformations, fast actuations and sensitive responses to multiple stimuli. Here, we report such an actuator constructed from one layer of polyvinylidene fluoride (PVDF) with a high coefficient of thermal expansion (CTE), and another layer of small sheets of graphene oxide (SGO) with a negative CTE. The opposite deformations of both actuation layers make the SGO/PVDF bilayer actuator highly sensitive to the temperature stimulus with a large bending sensitivity of 1.
View Article and Find Full Text PDFWe report a simple method that can dissolve graphene oxide (GO) in pure organic solvents (e.g., propylene carbonate) as readily as in pure water to form stable dispersions of single layer GO sheets.
View Article and Find Full Text PDF