|Project Title||LAYER-BY-LAYER FILMS AND COATINGS CONTAINING MXENES|
|Tags||MXene, coating, flexible, conductive, wearable, electronics, Layer-by-Layer, films, flexible electronics, barriers|
|Posted Date||Mar 31, 2017 5:38 PM|
MXenes are two dimensional nanosheets containing transition metal carbides and/or nitrides having many desirable properties like graphene sheets. However, coatings that take advantage of MXenes and their properties have not yet been demonstrated. Flexible and wearable electronics require coatings with high electrical conductivity while performing under extreme mechanical bending and/or stretching conditions. The current inventive approach offers a new line of coatings based on MXenes especially for use with flexible electronics.
The layer-by-layer assembled composition consists of alternating layers of a cationic polymer layer and a negatively charged MXene layer. The LbL approach is versatile to a variety of surfaces, substrates, and geometries (Figure 1). For example, metal, glass, ITO-coated glass, plastic, gold-coated plastic, silicon wafer, and fabric are used as substrates, and many others are possible. The MXene-based layer-by-layer films or coatings exhibit enhanced properties, such as improved mechanical integrity, mechanical flexibility, enhanced electronic, and/or other useful features.
- Mechanically flexible
- Electro conductive
- Electrochemically active
- Surface-agonistic coating technique
- Cost-reduction for processing compared to graphene
- Accurate thickness control
- Flexible conductive substrates for flexible and wearable electronics
- Flexible electrodes for supercapacitors and batteries
- Barrier films
- Low-friction coatings
Stage of Development
Demonstrated LbL coatings on
- Glass, ITO-coated glass
- PET plastic
- In2O3/Au/Ag-coated PET plastic
- Polydimethylsiloxane (PDMS) and Nylon fibers Conducted preliminary testing to show electronic conductivity.
Strain sensing and humidity sensing properties have been evaluated.
Jodie Lutkenhaus, Ph.D.
Artie McFerrin Department of Chemical Engineering
- Electroactive polymers
- Energy storage
- Anti-corrosion coating
For licensing information, please contact:
Shyamala Rajagopalan, Ph.D.
Texas A&M Technology Commercialization
Docket: TAMU 4551
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