Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Standing Waves in a Cavity01:28

Standing Waves in a Cavity

821
A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
821
Absorption of Radiation01:05

Absorption of Radiation

683
The rate of heat transfer by emitted radiation is described by the Stefan-Boltzmann law of radiation:
683

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Subtype-specific bone mineralization defects and early treatment amelioration in murine models of autosomal recessive osteopetrosis revealed by Raman spectroscopy.

Bone·2026
Same author

Hydroxy-Group Topology as a Molecular Trigger Between Antioxidant and Photosensitizing Properties in Dihydroxynaphthalenes.

ACS omega·2026
Same author

Bioinspired MXene@PNIPAAm Composite Enables Switchable Microwave Absorption.

ACS applied materials & interfaces·2026
Same author

Nonequilibrium dynamics of high energy transitions in monolayer WSe<sub>2</sub>.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same author

Ultrafast Excited-State Dynamics of Dithienyltetrazine-Based Donor-Acceptor Copolymers.

The journal of physical chemistry. B·2026
Same author

Integration of 2D Materials in Radial van der Waals Heterostructure Metasurfaces.

ACS nano·2026
Same journal

Removal of Codispersible Residual Impurities from CuInS<sub>2</sub>/ZnS Quantum Dots for Window-Replaceable Luminescent Solar Concentrators.

ACS applied materials & interfaces·2026
Same journal

Durable Core-Shell Scatterer Coating with Heat Storage for Radiative Cooling.

ACS applied materials & interfaces·2026
Same journal

Calix[6]arene-Based Interlocked Inverse Vulcanizate Enabling Network-Interface Cooperative Reinforcement in Natural Rubber/Carbon Black Composites.

ACS applied materials & interfaces·2026
Same journal

Resolving Thermal Accumulation and Rigid-Soft Interface Mismatch in Stretchable Electronics with Cubic Boron Nitride Composite Islands.

ACS applied materials & interfaces·2026
Same journal

Enhancing Conversion Reversibility and Initial Coulombic Efficiency of SnO<sub>2</sub> Anodes via NiO/Ni-Carbon Interfacial Design.

ACS applied materials & interfaces·2026
Same journal

Multidimensional Interface Structure Design for High-Efficiency Optically Controlled Semiconductor Devices: A Case Study on Memristive Synapses.

ACS applied materials & interfaces·2026
See all related articles

Related Experiment Video

Updated: May 12, 2025

Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity
11:30

Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity

Published on: March 6, 2017

11.6K

A Tough Temperature-Responsive Composite for Switchable Microwave Absorption.

Ying Li1,2, Yudi Li1, Linlin Zhao1

  • 1School of Mechanical Engineering, Chengdu University, 2025 Chengluo Avenue, Chengdu 610106, China.

ACS Applied Materials & Interfaces
|April 25, 2025
PubMed
Summary
This summary is machine-generated.

This study introduces a novel temperature-responsive composite material for smart microwave absorption. The material exhibits switchable performance, offering enhanced electromagnetic interference protection in dynamic environments.

Keywords:
carbon nanocompositemechanical propertymicrowave absorptionswitch abilitytemperature responsiveness

More Related Videos

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
13:44

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Published on: December 27, 2012

15.3K
High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
06:24

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal

Published on: October 31, 2019

6.3K

Related Experiment Videos

Last Updated: May 12, 2025

Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity
11:30

Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity

Published on: March 6, 2017

11.6K
Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
13:44

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Published on: December 27, 2012

15.3K
High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
06:24

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal

Published on: October 31, 2019

6.3K

Area of Science:

  • Materials Science
  • Nanotechnology
  • Polymer Science

Background:

  • Advanced electromagnetic interference (EMI) protection requires smart materials responsive to environmental stimuli.
  • Developing materials with tunable microwave absorption (MA) properties and robust mechanical performance is crucial for dynamic applications.
  • Existing MA materials often lack adaptability to varying environmental conditions.

Purpose of the Study:

  • To develop a temperature-responsive composite material for switchable microwave absorption.
  • To investigate the mechanism behind the tunable MA behavior triggered by temperature changes.
  • To evaluate the mechanical properties of the developed composite for practical applications.

Main Methods:

  • Synthesis of a composite material (PGPC) combining poly(N-isopropylacrylamide) (PNIPAAm) and a graphene oxide (GO)-loaded polyurethane (PU) sponge.
  • Characterization of MA performance at different temperatures (20 °C and 50 °C) by measuring reflection loss and bandwidth.
  • In situ and ex situ structural analysis to understand the role of the graphene network and PNIPAAm in tunable MA behavior.
  • Evaluation of mechanical properties influenced by the PU sponge incorporation.

Main Results:

  • The PGPC composite demonstrated switchable MA behavior, with minimal absorption below the lower critical solution temperature (LCST) and significantly enhanced absorption (-42 dB) with a 3.45 GHz bandwidth at 50 °C.
  • Tunable MA performance is attributed to the reversible dissociation and reconstruction of a 3D graphene network, driven by PNIPAAm chain movement.
  • The incorporation of PU significantly improved the composite's mechanical properties, enhancing its robustness.
  • The material showed a clear transition in MA effectiveness linked to temperature-induced structural changes.

Conclusions:

  • The developed PGPC composite offers intelligent, switchable microwave absorption capabilities.
  • The material's performance is effectively tuned by temperature, making it suitable for adaptive EMI protection.
  • The combination of tunable MA properties and enhanced mechanical strength positions PGPC as a promising material for advanced applications in dynamic environments.