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Opportunity at National Institute of Standards and Technology (NIST)

Microwave Conductivity of Carbon-Based Nanocomposites

Location

Material Measurement Laboratory, Materials Science and Engineering Division

RO# Location
50.64.21.B7735 Gaithersburg, MD

Please note: This Agency only participates in the February and August reviews.

Advisers

Name E-mail Phone
Douglas, Jack Frank jack.douglas@nist.gov 301.975.6779
Liddle, James Alexander james.liddle@nist.gov 301.975.6050
Obrzut, Jan jan.obrzut@nist.gov 301.975.6845

Description

As part of a collaborative NIST-wide program involving structural characterization, modeling, and high-throughput microwave measurement, we are developing new methods for characterizing the structure and dynamics of the interface and interphase regions in carbon-based nanocomposite materials and in the overall conductive properties of these polymer nanocomposites containing these networks. Our objective is to develop metrologies to understand how morphology and functionalization affect the alternating current (AC) conductivity of composite materials containing electrically conducting nanoscale objects such as carbon nanotubes and/or graphene. We are also concerned with how light, stress, and other environmental exposures alter these properties and the practical potential of such property measurements to anticipate material failure. Our research particularly focuses on determining their collective universal transport properties of percolated networks of nanoparticles at microwave frequencies using guided and free-space wave propagation techniques.

 

Keywords:
Microwave scattering parameters; Electrical conductivity; Nanocomposites; Percolated networks; Carbon nanotubes; Graphene;

Eligibility

Citizenship:  Open to U.S. citizens
Level:  Open to Postdoctoral applicants
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