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Updated: Sep 17, 2025

Characterization of Biological Absorption Spectra Spanning the Visible to the Short-Wave Infrared
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Superblack Carbon Hierarchitectures for Multispectral Absorption.

Can Zhang1, Xueying Fan2, Jian-Tang Jiang1,3

  • 1School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China.

Advanced Materials (Deerfield Beach, Fla.)
|July 2, 2025
PubMed
Summary

Researchers developed superblack carbon hierarchitectures (SCHs) for efficient multispectral absorption. These materials absorb visible, infrared, and microwave waves, advancing stealth and space exploration applications.

Keywords:
carbon microparticlesmultispectral absorptionsuperblacktopological transformationwave‐matter interaction

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Optics

Background:

  • Multispectral absorbers are crucial for applications like space exploration, stealth, and camouflage.
  • Achieving efficient absorption across visible, infrared, and microwave wavelengths is challenging due to the vast range of incident wavelengths.

Purpose of the Study:

  • To design and develop novel superblack carbon hierarchitectures (SCHs) for efficient multispectral wave absorption.
  • To investigate the synergistic effects of morphology and dielectric properties on absorption performance.
  • To elucidate the geometrical effects influencing microwave absorption mechanisms.

Main Methods:

  • A bottom-up approach using self-assembly and self-sacrifice of hydrogen-bonded organic frameworks (HOFs).
  • Synergistic morphological customization and dielectric property tuning (via carbon nitride-like moieties and C═C chains).
  • Analysis of topological transformations to understand geometrical effects on absorption.

Main Results:

  • Superblack carbon hierarchitectures (SCHs) achieved >99.6% visible light absorption.
  • High infrared absorption (98.5%-99.6%) across long-, mid-, and short-wavelength infrared regimes.
  • Ultrabroad microwave absorption with an 8.52 GHz effective bandwidth, covering X and Ku bands.

Conclusions:

  • The developed SCHs offer simultaneous, efficient absorption across visible, infrared, and microwave spectra.
  • The study provides insights into the geometrical effects (fractal dimension, interconnection) on microwave absorption.
  • This work presents a new paradigm for multispectral absorption materials and mechanisms.