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Since the discovery of graphene, the quest for two-dimensional (2D) materials has intensified greatly
| Rus | Eng |
Transparent Conductive Two-Dimensional Titanium Carbide Epitaxial Thin Films
Abstract
Since the discovery of graphene, the quest for two-dimensional (2D) materials has intensified greatly. Recently, a new family of 2D transition metal carbides and carbonitrides (MXenes) was discovered that is both conducting and hydrophilic, an uncommon combination. MXenes were produced as powders, flakes and colloidal solutions. Herein, we report on the fabrication of ~ 1x1 cm2 Ti3C2 films by selective etching of Al, from sputter-deposited epitaxial Ti3AlC2 films, in aqueous HF or NH4HF2. Films that were about 19 nm thick, etched with NH4HF2, transmit ~ 90% of the light in the visible-to-infrared range and exhibit metallic conductivity down to ~100 K. Below 100 K, the films’ resistivity increases with decreasing temperature and they exhibit negative magnetoresistance; both observations consistent with a weak localization phenomenon characteristic of many 2D defective solids. This advance opens the door for the use of MXenes in electronic, photonic and sensing applications.
View PDF version Transparent Conductive Two-Dimensional Titanium Carbide Epitaxial Thin Films
Source: http://pubs.acs.org/doi/full/10.1021/cm500641a


The seminar, titled “MXenes for Space and High-Tech Applications: From Scalable Synthesis to Smart Structures, Sensors, and Advanced Bio-Composites,” brought together researchers interested in the development and application of advanced nanomaterials. The presentation covered recent progress in MXene technology, with a particular focus on scalable synthesis and the integration of MXenes into smart structures, sensors, advanced electronics, multifunctional composites, and space technologies.
The study, “Green-Synthesized MXenes Enable Low-Friction, Cytocompatible PVA-Chitosan Hydrogels,” explores the incorporation of HF-free, green-synthesized Ti₃C₂Tₓ MXenes into polyvinyl alcohol (PVA)-chitosan hydrogels. The research demonstrates that this combination can produce highly hydrated, mechanically enhanced, cytocompatible materials with significantly improved tribological properties.
Our collaborative work on porous Ti₃AlC₂ MAX phase for efficient Ti₃C₂Tₓ MXene synthesis has been ranked among the Top 10 most cited papers in the International Journal of Applied Ceramic Technology (IJACT).
We highly recommend checking out new important paper: “Critical Assessment of Intrinsic Antibacterial Properties and Photothermal Therapy Potential of MXene Nanosheets.” Along with the key findings, we’re also excited to share the Supplementary Cover Art — it beautifully illustrates our vision of MXene-based targeted complexes that can eliminate bacteria via photothermal conversion under near-infrared irradiation.
Do MXene nanosheets possess intrinsic antibacterial activity? A systematic study of high-quality Ti-, V-, and Nb-based MXenes reveals negligible inherent antimicrobial effects while highlighting their strong potential for targeted photothermal antibacterial therapy.
Highlights
We are excited to share that our Carbon-Ukraine (Y-Carbon LLC) company participated in the I2DM Summit and Expo 2025 at Khalifa University in Abu-Dhabi! Huge thanks to Research & Innovation Center for Graphene and 2D Materials (RIC2D) for hosting such a high-level event.It was an incredible opportunity to meet brilliant researchers and innovators working on the next generation of 2D materials. The insights and energy from the summit will definitely drive new ideas in our own development.
Carbon-Ukraine team had the unique opportunity to visit XPANCEO - a Dubai-based deep tech startup company that is developing the first smart contact lenses with AR vision and health monitoring features, working on truly cutting-edge developments.
Our Carbon-Ukraine team (Y-Carbon LLC) are thrilled to start a new RIC2D project MX-Innovation in collaboration with Drexel University Yury Gogotsi and Khalifa University! Amazing lab tours to project collaborators from Khalifa University, great discussions, strong networking, and a wonderful platform for future collaboration.
MXenes potential applications include sensors, wound healing materials, and drug delivery systems. A recent study explored how different synthesis methods affect the safety and performance of MXenes. By comparing etching conditions and intercalation strategies, researchers discovered that fine-tuning the surface chemistry of MXenes plays a crucial role in improving biocompatibility. These results provide practical guidelines for developing safer MXenes and bring the field one step closer to real biomedical applications.
An excellent review highlighting how MXene-based sensors can help tackle one of today’s pressing environmental challenges — heavy metal contamination. Excited to see such impactful work moving the field of environmental monitoring and sensor technology forward!
Carbon-Ukraine team was truly delighted to take part in the kickoff meeting of the ATHENA Project (Advanced Digital Engineering Methods to Design MXene-based Nanocomposites for Electro-Magnetic Interference Shielding in Space), supported by NATO through the Science for Peace and Security Programme.