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Patterning MXene RFID Antennas via Surface Hydrophobicity Modulation.
Zahra Sarpanah Sourkouhi1, Jamal Alhourani2, Yury Gogotsi2
1Faculty of Applied Science, The University of British Columbia, Kelowna, V1V 1V7, Canada.
Small (Weinheim an Der Bergstrasse, Germany)
|September 18, 2025
Summary
Researchers developed a novel method to pattern MXene-based RFID antennas on paper substrates. This technique enhances pattern fidelity and enables efficient fabrication of ultrahigh frequency antennas.
Area of Science:
- Materials Science
- Nanotechnology
- Electrical Engineering
Background:
- MXenes are 2D materials with excellent electrical and mechanical properties.
- Their application in electromagnetic devices like RFID antennas is promising.
- Existing fabrication methods for MXene antennas face challenges in pattern fidelity.
Purpose of the Study:
- To demonstrate a new patterning technique for MXene-based RFID antennas.
- To improve the precision and scalability of MXene antenna fabrication.
- To explore the performance of MXene antennas fabricated on paper substrates.
Main Methods:
- Utilized a Ti3C2Tx MXene colloid for conductive traces via dip-coating.
- Employed a superhydrophobic layer patterning technique on a hydrophilic paper substrate.
- Controlled ink spreading by manipulating surface hydrophobicity and MXene hydrophilicity.
Main Results:
- Achieved improved pattern fidelity in MXene RFID antennas by minimizing ink spreading.
- Successfully fabricated dipole, meander, and T-matched antennas operating at UHF (800-920 MHz).
- Demonstrated high efficiency (≈97%) and impedance matching to 50 Ω for fabricated antennas.
Conclusions:
- The proposed patterning method offers a scalable and precise approach for fabricating MXene conductive traces and microstrip lines.
- This technique enables the development of high-performance MXene-based RFID antennas on flexible substrates.
- The study highlights the potential of MXenes in advanced electromagnetic applications.
