Pitt | Swanson Engineering
Bedewy Research Group captures WCMNM Best Paper Award
PhD student Moataz Abdulhafez (left), the paper's first author, with Dr. Bedewy holding a sample of vertically aligned carbon nanotubes next to the lab reactor.

PITTSBURGH (September 30, 2019) ... The Bedewy Research Group has won the Best Paper Award at the 019 World Congress on Micro and Nano Manufacturing (WCMNM), where Mostafa Bedewy, PhD presented research results from his NanoProduct Lab on Tuesday September 10, 2019 in Raleigh, North Carolina. PhD student Moataz Abdulhafez is first author for the paper “In Situ Measurement of Carbon Nanotube Growth Kinetics in a Rapid Thermal Chemical Vapor Deposition Reactor with Multizone Infrared Heating," and former postdoc Jaegeun Lee is second author.

Dr. Bedewy is an Assistant Professor of Industrial Engineering, Chemical & Petroleum Engineering (secondary appointment), and Mechanical Engineering & Materials Science (secondary appointment). He joined the Swanson School of Engineering in September 2016.

In this work, Dr. Bedewy’s team introduced a unique experimental capability for carbon nanotube growth by chemical vapor deposition, based on a custom-designed multizone rapid thermal processing reactor with real-time monitoring of growth kinetics using videography and image processing. Combining these measurements with 3D optical microscopy, electron microscopy, Raman spectroscopy, and density measurements enable unprecedented study of the time-varying collective growth stages, and the resulting dynamics of nanotube population behavior.

“We like to watch these forests of nanotubes grow,” commented Dr. Bedewy. “As billions of these tiny ‘hairs’ grow and interact together on an area smaller than a penny, they build a macroscopic stricture of vertically aligned nanotubes, which has very interesting mechanical, thermal, and electrical properties. A major challenge however is to control the spatial variation of their properties, which we uniquely achieve based on our custom-designed reactor.”

This work was funded by the National Science Foundation (NSF) under award #1825772, titled “Functionally Graded Carbon Nanotubes by Dynamic Control of Morphology during Chemical Vapor Deposition.”

This conference, which was hosted at North Carolina State University, was Jointly organized by The 4M Association, The International Institution for Micro Manufacturing (I2M2), and The International Forum on Micro Manufacturing (IFMM). According to WCMNM, the Congress hopes to bring together the worldwide community of micro and nano manufacturing experts.

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9/30/2019

Contact: Paul Kovach