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Randolph Elmquist (Fed)

Randolph E. Elmquist directs the Quantum Conductance project at the National Institute of Standards and Technology. Working for the past 32 years in the field of electrical and quantum metrology, he has contributed to the experimental design and measurement of the electronic Kilogram and calculable impedance standards for the determination of the von Klitzing constant and alpha, the unitless fine structure constant. He leads the development of cryogenic current comparator systems, the quantum Hall effect, and graphene electronic devices for metrology. He graduated with the PhD. degree in Physics from the University of Virginia and is a member of the American Physical Society and a senior member of the Institute of Electrical and Electronics Engineers.


Graphene-Based Star-Mesh Resistance Networks

Dean G. Jarrett, Ching-Chen Yeh, Shamith Payagala, Alireza Panna, Yanfei Yang, Linli Meng, Swapnil Mhatre, Ngoc Thanh Mai Tran, Heather Hill, Dipanjan Saha, Randolph Elmquist, David B. Newell, Albert Rigosi

Patents (2018-Present)

Analyte Probe And Determining Water Vapor Transmission Rate

NIST Inventors
Randolph Elmquist and Jan Obrzut
An analyte probe determines water vapor transmission rate of a test coating and includes: a graphene analysis layer disposed the substrate and including an analytical interface for receiving a test coating and an n-dopant, such that: the substrate and graphene analysis layer are arranged in analyte
Created June 4, 2019, Updated December 8, 2022