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MSE Colloquium Series: "MXenes: A New Class of 2D Materials for Electronics & Sensing" by Husam Alshareef (Hosted by Dr. Manuel Quevedo)

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Abstract:

This talk will focus on MXenes and their device applications. We have been developing device concepts to capitalize on the rich and excellent properties of MXenes. These include using MXenes as electrical contacts, active materials, and precursors to prepare various 2D functional materials.

For example, the excellent electrical conductivity of MXenes makes them good candidates as contact materials in printed and electronics. We have demonstrated that MXenes are promising as electrical contacts in thin-film electronics, quantum dot electronics, CMOS devices, and solar cells. Further, due to the high carrier concentration of MXenes, they exhibit plasmonic properties which we used to develop broad-band plasmonic photodetectors. Capitalizing on the abundant surface charges of MXenes, we have developed conducting MXene-polymer hydrogels with unique (skin-like) sensing capabilities that outperform existing hydrogel sensors. These hydrogels could detect magnitude and signs of stress, speed, facial expression, touch, and sound.  The hydrogel could also harvest energy from ultrasound, which can be stored or coupled to power other devices making them potentially useful for implanted powered sources. Finally, we have developed a new direction in MXene transformations, where the 2D nature of MXenes is leveraged to make high-performance functional materials. For example, highly-textured ferroelectric crystals, piezoelectric crystals, and piezoluminescent crystals were fabricated.  Besides, 2D metal-organic frameworks and their thin films were made using MXene as a metal source resulting in highly-texture MOF films at the wafer scale suitable for electronic devices. These applications and future ones will be discussed. 

 

Biography:

Husam Alshareef is a Prof. of Materials Science and Engineering at KAUST. He obtained his Ph.D. at NC State University in 1996 followed by a post-doctoral Fellowship at Sandia National Laboratory, USA.  He then embarked on a 10-year career in the semiconductor industry, holding positions at Micron Technology and Texas Instruments. There he worked on developing new materials and processes for the microelectronics.  In 2009 he joined KAUST, where he initiated an active research group focusing on the development of nanomaterials for electronics, sensors, and energy storage devices. He has won the UNDP Undergraduate Fellowship, Seth Sprague Physics Award, NC State Deans Fellowship, U.S. Department of Education Electronic Materials Fellowship, Sandia Laboratory post-doctoral Fellowship (1996), the SEMATECH Corporate Excellence Award (2006), two Dow Sustainability Awards (2011) and (2014), AH Shoman Award for Excellence in Energy Research (2016), KAUST Inaugural Distinguished Teaching Award (2018), and the Kuwait Prize for Sustainable and Clean Technologies (2018).  He is a Fellow of the American Physical Society, Royal Society of Chemistry, and IEEE Distinguished Lecturer in Nanotechnology.  He is a Clarivate Analytics Highly-cited Researcher in Materials Science (2019, 2020, 2021). The author of 500 refereed journal articles, he has over 75 issued and pending patents.

Wednesday, December 8, 2021 at 10:00am to 11:00am

NSERL RL 3.204

Persons with disabilities may submit a request for accommodations to participate in this event at UT Dallas' ADA website. You may also call (972) 883-5331 for assistance or send an email to ADACoordinator@utdallas.edu. All requests should be received no later than 2 business days prior to the event.

Event Type

Lectures & Workshops

Target Audience

Faculty & Staff, Graduate Students

Topic

Research

Department
Erik Jonsson School of Engineering and Computer Science
Hashtag

#utdmse

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