Abstract
Atomic-molecular engineering is an effective way to accurately tailor the microstructures and components of materials at the micro-nano scale, which can be applied to flexibly manipulate their electromagnetic (EM) response. Herein, graphene microlaminates with multi-layer structure are fabricated by atomic cluster engineering and oxidative molecular layer deposition for the first time. The microlaminates enable a tunable EM loss (from 0.93 to 3.94 for imaginary permittivity and from 0.17 to 0.25 for imaginary permeability) by changing poly(3,4-ethylenedioxythiophene) cycles, and the attenuation constant reaches 160. On this basis, multifunctional antennas are conceived, achieving frequency-selective response that enables steady harvest of > 90% of EM energy from signal source, and tactfully recycling waste heat energy and mechanical energy. This study will furnish a new horizon for information transmission and artificial intelligence in the future.
Original language | English |
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Article number | 2212379 |
Journal | Advanced Functional Materials |
Volume | 33 |
Issue number | 15 |
DOIs | |
Publication status | Published - 11 Apr 2023 |
Keywords
- atomic-molecular engineering
- electromagnetic attenuation
- energy conversion
- graphene microlaminates
- multifunctional antennas