November 18, 2019 UMD Home FabLab AIMLab



In a publication in ACS Photonics, a team of researchers from University of Maryland, led by Marina Leite, an assistant professor in the department of materials science and engineering, demonstrated color pixels  that are activated when exposed to water and then disappear completely. The pixels are made out of magnesium and magnesium oxide, which are earth-abundant and biodegradable, an advantage for scaling up the new technology. Transient photonic devices that can disappear after stable operation can transform the further development of sensors in healthcare, besides energy and national security.

 An important aspect of this research is the realization of transient devices with tunable (e.g. reconfigurable) functionality using solely earth-abundant and biocompatible/biodegradable materials. The landscape for applications is extremely rich. Specifically, her research can impact the fabrication of chemical sensors, which could safely degrade in the landfill after stable operation, critical for monitoring our environment. 

 “Devices that can be made to vanish in a controlled manner and that are biocompatible can be implemented in healthcare, where implanted optical sensors would require no additional medical procedure to remove them from a patient’s body,” said Leite. “The encryption of highly sensitive information can also benefit from our approach, as all the materials involved in the active layers of the pixels are biocompatible.”

First year PhD student Tom Farinha, a 2018 Clark fellow, is eager to continue working in this project. “It has been very exciting to be at UMD so far, and I can’t wait to make nanophotonic transient devices.” Alumni Chen Gong, who is now a process engineer at Applied Materials and 2017–2018 Harry K. Wells Graduate Fellow, also contributed to this work. The team is particularly excited about the fact that all active materials involved are biodegradable and environmentally friendly because their discovery could transform the development of color displays in the near future.

Leite’s team's next steps will encompass fabricating and testing transient devices formed by nanostructured building blocks that enable optical tunability and further control of the electromagnetic spectrum. The development of functional materials for sustainability has been a focus of her research group, which is also advancing the understanding of solar cells and all-solid-state batteries. Leite is also a professor of physics and a member of the Institute for Research in Electronics and Applied Physics  For more information in these topics, see her website: leitelab.umd.edu

 

Magnesium for Transient Photonics

Thomas G. Farinha, Chen Gong, Zackery A. Benson and Marina S. Leite

ACS Photonics (2018) 10.1021/acsphotonics.8b01299



December 6, 2018


«Previous Story  

 

 

Current Headlines

ChBE Ph.D. Student Wins Battery500 Young Investigators Award

Clark School Professor Elected 2019 APS Fellows

UMD Graduate Student Kang-Yi Lin Receives 2019 ALD/ALE Award

NSF Awards $1M Grant to UMD Researchers

Ghodssi Receives Senior Faculty Outstanding Research Award

University of Maryland Launches Quantum Technology Center

Mapping Nucleation Kinetics with Nanometer Resolution

MEI² Receives Two New Innovative Vehicle Technology Awards

UMD Hosts 4th Annual Machine Learning Bootcamp and Workshop

UMD Alumna Receives PECASE Award, Highest Honor Given by U.S. Government to Early Career Scientists

 

Colleges A. James Clark School of Engineering
The College of Computer, Mathematical, and Natural Sciences

Communicate Contact Us
Contact the Webmaster
Google+
Follow us on TwitterTwitter logo

Links Privacy Policy
Sitemap
RSS

Copyright The University of Maryland University of Maryland
2004-2019