University of California, Riverside

Department of Electrical and Computer Engineering

Balandin and Lake Report in Nature Nanotechnology Highlighted in Media

Balandin and Lake Report in Nature Nanotechnology Highlighted in Media

Balandin and Lake Report in Nature Nanotechnology Highlighted in Media

September 2, 2016

Graphene has emerged as one of the most promising two-dimensional materials but the future of electronics may include two other nanomaterials, according to a new study in ECE Distinguished Professor Balandin and ECE Professor Lake Groups at the Department of Electrical and Computer Engineering of the University of California – Riverside. In recent research published in the journal Nature Nanotechnology, the researchers described the integration of three very different two-dimensional (2D) materials to yield a simple, compact, and fast voltage controlled oscillator (VCO) device. A VCO is an electronic oscillator whose oscillation frequency is controlled by a voltage input. Titled “An Integrated Tantalum Sulfide—Boron Nitride—Graphene Oscillator: A Charge-Density-Wave Device Operating at Room Temperature,” the paper describes the development of the first useful device that exploits the potential of charge-density waves to modulate an electrical current through a 2D material. The new technology could become an ultralow power alternative to conventional silicon-based devices, which are used in thousands of applications from computers to clocks to radios. The thin, flexible nature of the device would make it ideal for use in wearable technologies. The first author of the paper Dr. Guanxiong Liu – Postdoctoral Researcher in the Balandin Group – fabricated the devices and conducted their testing.  Bishwajit Debnath – PhD student in the Lake Group – performed modeling and simulation of the device operation. The research involved cooperation with Professor Tina Salguero from the University of Georgia who provided high-quality crystalline material for device fabrication.


Photo: UC Riverside’s Alexander Balandin (left) and Guanxiong Liu fabricated the voltage-controlled oscillator device in a cleanroom at the university’s Center for Nanoscale Science and Engineering (CNSE).


The links below provide access to a complete story about the 2D device and full-text of the Nature Nanotechnology publication.



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