TY - JOUR
T1 - Temperature-Robust Broadband Metamaterial Absorber via Semiconductor MOFs/Paraffin Hybridization
AU - Qu, Ning
AU - Yu, Zhen
AU - Zhang, Jiamin
AU - Han, Huichun
AU - Xing, Ruizhe
AU - Geng, Li
AU - Kong, Jie
N1 - Publisher Copyright:
© 2024 Wiley-VCH GmbH.
PY - 2025/2/12
Y1 - 2025/2/12
N2 - The demand for temperature-robust electromagnetic wave (EMW) absorption materials is escalating due to the varying operational temperatures of electronic devices, which can easily soar up to 100 °C, significantly affecting EMW interference management. Traditional absorbers face performance degradation across broad temperature ranges due to alterations in electronic mobility and material impedance. This study presented a novel approach by integrating semiconductor metal–organic frameworks (SC-MOFs) with paraffin wax (PW), leveraging the precise control of interlayer spacing in SC-MOFs for electron mobility regulation and the introduction of paraffin wax for temperature-inert electromagnetic properties. This synergistic strategy enhanced dielectric properties and impedance matching across temperature ranges from ambient to 100 °C. A metamaterial shell layer, designed through finite element simulation and fabricated by 3D printing, encapsulated the composite, resulting in a broadband metamaterial absorber with an 11.81 GHz effective absorption bandwidth and a nearly unchanged absorption peak position across 25–100 °C. This temperature-robust metamaterial absorber paves the way for advanced EMW management materials capable of operating reliably in extreme temperature environments.
AB - The demand for temperature-robust electromagnetic wave (EMW) absorption materials is escalating due to the varying operational temperatures of electronic devices, which can easily soar up to 100 °C, significantly affecting EMW interference management. Traditional absorbers face performance degradation across broad temperature ranges due to alterations in electronic mobility and material impedance. This study presented a novel approach by integrating semiconductor metal–organic frameworks (SC-MOFs) with paraffin wax (PW), leveraging the precise control of interlayer spacing in SC-MOFs for electron mobility regulation and the introduction of paraffin wax for temperature-inert electromagnetic properties. This synergistic strategy enhanced dielectric properties and impedance matching across temperature ranges from ambient to 100 °C. A metamaterial shell layer, designed through finite element simulation and fabricated by 3D printing, encapsulated the composite, resulting in a broadband metamaterial absorber with an 11.81 GHz effective absorption bandwidth and a nearly unchanged absorption peak position across 25–100 °C. This temperature-robust metamaterial absorber paves the way for advanced EMW management materials capable of operating reliably in extreme temperature environments.
KW - broadband microwave absorption
KW - metamaterial absorber
KW - semiconductive metal–organic frameworks
KW - temperature-robust microwave absorption
UR - http://www.scopus.com/inward/record.url?scp=85214227836&partnerID=8YFLogxK
U2 - 10.1002/smll.202409874
DO - 10.1002/smll.202409874
M3 - 文章
AN - SCOPUS:85214227836
SN - 1613-6810
VL - 21
JO - Small
JF - Small
IS - 6
M1 - 2409874
ER -