Stretchable, Transparent, and Ultra-Broadband Terahertz Shielding Thin Films Based on Wrinkled MXene Architectures

Stretchable, Transparent, and Ultra-Broadband Terahertz Shielding Thin Films Based on Wrinkled MXene Architectures

2024 | Shaodan Yang, Zhiqiang Lin, Ximiao Wang, Junhua Huang, Rongliang Yang, Zibo Chen, Yi Jia, Zhiping Zeng, Zhaolong Cao, Hongjia Zhu, Yougen Hu, Enen Li, Huanjun Chen, Tianwu Wang, Shaozhi Deng, Xuchun Gui
A stretchable, transparent, and ultra-broadband terahertz (THz) shielding film based on wrinkled MXene (Ti₃C₂Tₓ) architectures has been developed. This film, with an atomic thickness of 8 nm, exhibits enhanced THz wave absorption due to its wrinkled structure, which improves conductivity and surface plasmon resonances. The wrinkled MXene film demonstrates a 36.5% increase in THz shielding efficiency (SE) compared to a flat film, achieving an SE of 21.1 dB at 100 nm thickness and an average SE/t of 700 dB μm⁻¹ over the 0.1–10 THz range. The film is highly conformable to surfaces with random curvatures and maintains low THz transmittance (0.5–2.4%) even after stretching and bending. The wrinkled structure also enhances the film's stretchability and stability, with the wrinkle-P film showing only a 31.1% resistance increase under 40% strain. The film's performance is validated through THz imaging, demonstrating its effectiveness in shielding THz waves while maintaining transparency and conformability. The study highlights the potential of wrinkled MXene films for future applications in smart windows and wearable electronics. The results suggest that structuring thin films can enhance electromagnetic responses, making them promising candidates for THz shielding materials.A stretchable, transparent, and ultra-broadband terahertz (THz) shielding film based on wrinkled MXene (Ti₃C₂Tₓ) architectures has been developed. This film, with an atomic thickness of 8 nm, exhibits enhanced THz wave absorption due to its wrinkled structure, which improves conductivity and surface plasmon resonances. The wrinkled MXene film demonstrates a 36.5% increase in THz shielding efficiency (SE) compared to a flat film, achieving an SE of 21.1 dB at 100 nm thickness and an average SE/t of 700 dB μm⁻¹ over the 0.1–10 THz range. The film is highly conformable to surfaces with random curvatures and maintains low THz transmittance (0.5–2.4%) even after stretching and bending. The wrinkled structure also enhances the film's stretchability and stability, with the wrinkle-P film showing only a 31.1% resistance increase under 40% strain. The film's performance is validated through THz imaging, demonstrating its effectiveness in shielding THz waves while maintaining transparency and conformability. The study highlights the potential of wrinkled MXene films for future applications in smart windows and wearable electronics. The results suggest that structuring thin films can enhance electromagnetic responses, making them promising candidates for THz shielding materials.
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[slides] Stretchable%2C Transparent%2C and Ultra-Broadband Terahertz Shielding Thin Films Based on Wrinkled MXene Architectures | StudySpace