Low Infrared Emissivity and Strong Stealth of Ti-Based MXenes

Xinliang Li, Minghang Li, Xin Li, Xiaomeng Fan*, Chunyi Zhi*

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

63 Citations (Scopus)
97 Downloads (CityUHK Scholars)

Abstract

Advanced scenario-adaptable infrared (IR) stealth materials are crucial for creating localized closed thermal environments. Low emissivity over the broadest possible band is expected, as is superior mechanical deformability. Herein, we report a series of Ti-based MXenes with naturally low emissivity as ideal IR shielding materials. Over a wavelength ranging from 2.5 to 25 μm, Ti3C2Tx film delivers an average emissivity of 0.057 with the lowest point of 0.042. Such a low emissivity coupled with outstanding structural shaping capability is beyond the current grasp. The reflection-dominated mechanism is dissected. Also, some intriguing scenarios of IR stealth for wearable electronic devices and skin thermal control are demonstrated. This finding lights an encouraging path toward next-generation IR shielding by the expanding MXene family.
Original languageEnglish
Article number9892628
JournalResearch
Volume2022
Online published23 May 2022
DOIs
Publication statusPublished - 2022

Research Keywords

  • RADIATION

Publisher's Copyright Statement

  • This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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