Stretchable [2]rotaxane-bridged MXene films applicable for electroluminescent devices
Titanium carbide (Ti<sub>3</sub>C<sub>2</sub>T<i><sub>X</sub></i>) MXene has prominent mechanical properties and electrical conductivity. However, fabricating high-performance macroscopic films is challenging, as weak interlayer interactions limit their mechanical performance. Here, we introduce [2]rotaxane, a mechanically interlocked molecule, to enhance MXene films. Compared to pure MXene (fracture strain: 4.6%, toughness: 0.6 MJ/m<sup>3</sup>), [2]rotaxane-bridged MXene (RBM) films achieve record-high strain (20.0%) and toughness (11.9 MJ/m<sup>3</sup>) with only 3.6% [2]rotaxane by weight. Additionally, RBM films endure 500 stretch cycles (0 to 15% strain) with stable and reversible resistance alterations, making them ideal for stretchable electrodes. Notably, RBM films enable stretchable electroluminescent devices with reliable operation under 20% elongation and customizable luminescent patterns. This innovative use of mechanically interlocked molecules to cross-link MXene platelets advances MXene films and other two-dimensional materials in stretchable electronics.
Authors
- Jun Zhao (ORCID: https://orcid.org/0000-0003-0552-4885)
- Xuzhou Yan (ORCID: https://orcid.org/0000-0002-6114-5743)
- Chunyu Wang
- Zhiwei Fan
- Tinghao Yun
- Ruixue Bai (ORCID: https://orcid.org/0009-0002-9908-0030)
- Zhaoming Zhang (ORCID: https://orcid.org/0000-0003-2086-1302)
- Zhitao Zhang (ORCID: https://orcid.org/0000-0003-1836-5609)
- Boyue Gao
- Kai Xue (ORCID: https://orcid.org/0000-0002-8068-1138)
- Mengling Yang (ORCID: https://orcid.org/0000-0001-8208-1091)
- Wenbin Wang
Institutions
- Shanghai Jiao Tong University (CN)
- Shanghai Advanced Research Institute (CN)
Publication Details
- Journal
- Science Advances
- Published
- 2025-03-07
- DOI
- https://doi.org/10.1126/sciadv.adt8262
- Citations
- 9
- Primary Topic
- MXene and MAX Phase Materials
- Type
- article
- Field-Weighted Citation Impact
- 4.66