Non-volatile rewritable frequency tuning of a nanoelectromechanical resonator using photoinduced doping
arXiv:1908.07609 · doi:10.1021/acs.nanolett.9b05003
Abstract
Tuning the frequency of a resonant element is of vital importance in both the macroscopic world, such as when tuning a musical instrument, as well as at the nanoscale. In particular, precisely controlling the resonance frequency of isolated nanoelectromechanical resonators (NEMS) has enabled innovations such as tunable mechanical filtering and mixing as well as commercial technologies such as robust timing oscillators. Much like their electronic device counterparts, the potential of NEMS grows when they are built up into large-scale arrays. Such arrays have enabled neutral-particle mass spectroscopy and have been proposed for ultralow-power alternatives to traditional analog electronics as well as nanomechanical information technologies like memory, logic, and computing. A fundamental challenge to these applications is to precisely tune the vibrational frequency and coupling of all resonators in the array, since traditional tuning methods, like patterned electrostatic gating or dielectric tuning, become intractable when devices are densely packed. Here, we demonstrate a persistent, rewritable, scalable, and high-speed frequency tuning method for graphene-based NEMS. Our method uses a focused laser and two shared electrical contacts to photodope individual resonators by simultaneously applying optical and electrostatic fields. After the fields are removed, the trapped charge created by this process persists and applies a local electrostatic tension to the resonators, tuning their frequencies. By providing a facile means to locally address the strain of a NEMS resonator, this approach lays the groundwork for fully programmable large-scale NEMS lattices and networks.
arXiv comment19 pages, 4 figures
References in corpus (22)
- Detection of Individual Gas Molecules Absorbed on Graphene
- Impermeable Atomic Membranes from Graphene Sheets
- Laser cooling of a nanomechanical oscillator into its quantum ground state
- An Atomic-resolution nanomechanical mass sensor
- Performance of Monolayer Graphene Nanomechanical Resonators with Electrical Readout
- Circuit cavity electromechanics in the strong coupling regime
- Strong coupling between single-electron tunneling and nano-mechanical motion
- Coherent phonon manipulation in coupled mechanical resonators
- Photo-induced Doping in Graphene/Boron Nitride Heterostructures
- Experimental realization of on-chip topological nanoelectromechanical metamaterials
- Observation of nonreciprocal wave propagation in a dynamic phononic lattice
- Tunable phonon cavity coupling in graphene membranes
- Stamp transferred suspended graphene mechanical resonators for radio-frequency electrical readout
- Nonlinear nano-electromechanical lattices for high-frequency, tunable stress propagation
- Visualizing the motion of graphene nanodrums
- High quality factor graphene-based 2D heterostructure mechanical resonator
- Nanoscale control of rewriteable doping patterns in pristine graphene/boron nitride heterostructures
- Logic-Memory Device of a Mechanical Resonator
- Persistent Optical Gating of a Topological Insulator
- Electrostatically induced phononic crystal
- Spatial control of laser-induced doping profiles in graphene on hexagonal boron nitride
- Spatially Resolved Optical Excitation of Mechanical Modes in Graphene NEMS