skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Ultrafast Graphene Light Emitters

Journal Article · · Nano Letters
ORCiD logo [1];  [2];  [3]; ORCiD logo [4]; ORCiD logo [5];  [6]; ORCiD logo [7];  [8];  [8];  [5]; ORCiD logo [9]; ORCiD logo [9];  [10]; ORCiD logo [3];  [11]; ORCiD logo [11];  [7]; ORCiD logo [5]; ORCiD logo [3];  [2]
  1. Kyung Hee Univ., Seoul (Korea). Dept. of Physics
  2. Columbia Univ., New York, NY (United States). Dept. of Mechanical Engineering
  3. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Electrical Engineering and Computer Science
  4. Kavli Inst. at Cornell for Nanoscale Science, Ithaca, New York
  5. Stanford Univ., CA (United States). Dept. of Applied Physics; SLAC National Accelerator Lab., Menlo Park, CA (United States)
  6. Korea Research Inst. of Standards and Science, Daejeon (Korea); Univ. of Science and Technology, Daejeon (Korea). Dept. of Nano Science
  7. Columbia Univ., New York, NY (United States). Dept. of Electrical Engineering
  8. Yonsei Univ., Seoul (Korea). Dept. of Materials Science and Engineering
  9. Univ. of Minnesota, Minneapolis, MN (United States). Dept. of Electrical and Computer Engineering
  10. Columbia Univ., New York, NY (United States). Dept. of Mechanical Engineering; Columbia Univ., New York, NY (United States). Dept. of Electrical Engineering
  11. National Inst. for Materials Science, Namiki, Tsukuba (Japan)

Ultrafast electrically driven nanoscale light sources are critical components in nanophotonics. Compound semiconductor-based light sources for the nanophotonic platforms have been extensively investigated over the past decades. However, monolithic ultrafast light sources with a small footprint remain a challenge. Here in this paper, we demonstrate electrically driven ultrafast graphene light emitters that achieve light pulse generation with up to 10 GHz bandwidth across a broad spectral range from the visible to the near-infrared. The fast response results from ultrafast charge-carrier dynamics in graphene and weak electron-acoustic phonon-mediated coupling between the electronic and lattice degrees of freedom. We also find that encapsulating graphene with hexagonal boron nitride (hBN) layers strongly modifies the emission spectrum by changing the local optical density of states, thus providing up to 460% enhancement compared to the gray-body thermal radiation for a broad peak centered at 720 nm. Furthermore, the hBN encapsulation layers permit stable and bright visible thermal radiation with electronic temperatures up to 2000 K under ambient conditions as well as efficient ultrafast electronic cooling via near-field coupling to hybrid polaritonic modes under electrical excitation. These high-speed graphene light emitters provide a promising path for on-chip light sources for optical communications and other optoelectronic applications.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Center for Excitonics (CE); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0001088
OSTI ID:
1470431
Journal Information:
Nano Letters, Vol. 18, Issue 2; Related Information: CE partners with Massachusetts Institute of Technology (lead); Brookhaven National Laboratory; Harvard University; ISSN 1530-6984
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 84 works
Citation information provided by
Web of Science

References (39)

On-chip light sources for silicon photonics journal November 2015
Chip-integrated ultrafast graphene photodetector with high responsivity journal September 2013
Generation of photovoltage in graphene on a femtosecond timescale through efficient carrier heating journal April 2015
Graphene electro-optic modulator with 30 GHz bandwidth journal July 2015
High-Speed Electro-Optic Modulator Integrated with Graphene-Boron Nitride Heterostructure and Photonic Crystal Nanocavity journal February 2015
Graphene Plasmonics for Terahertz to Mid-Infrared Applications journal January 2014
Graphene plasmonics journal November 2012
Electrical 2π phase control of infrared light in a 350-nm footprint using graphene plasmons journal June 2017
Graphene photonics and optoelectronics journal August 2010
Graphene Photonics, Plasmonics, and Broadband Optoelectronic Devices journal May 2012
Ultrafast Photoluminescence from Graphene journal September 2010
Thermal infrared emission from biased graphene journal May 2010
Light–matter interaction in a microcavity-controlled graphene transistor journal January 2012
Imaging, Simulation, and Electrostatic Control of Power Dissipation in Graphene Devices journal December 2010
Impact ionization, trap creation, degradation, and breakdown in silicon dioxide films on silicon journal April 1993
Bright visible light emission from graphene journal June 2015
Current saturation in zero-bandgap, top-gated graphene field-effect transistors journal September 2008
Strong Enhancement of Light–Matter Interaction in Graphene Coupled to a Photonic Crystal Nanocavity journal October 2012
Electron and Optical Phonon Temperatures in Electrically Biased Graphene journal June 2010
One-Dimensional Electrical Contact to a Two-Dimensional Material journal October 2013
Focused-Laser-Enabled p–n Junctions in Graphene Field-Effect Transistors journal June 2013
Multi-terminal transport measurements of MoS2 using a van der Waals heterostructure device platform journal April 2015
Negligible Environmental Sensitivity of Graphene in a Hexagonal Boron Nitride/Graphene/h-BN Sandwich Structure journal September 2012
Highly Stable, Dual-Gated MoS 2 Transistors Encapsulated by Hexagonal Boron Nitride with Gate-Controllable Contact, Resistance, and Threshold Voltage journal June 2015
Tailoring high-temperature radiation and the resurrection of the incandescent source journal January 2016
Theoretical analysis of high-field transport in graphene on a substrate journal July 2014
Transport Properties of Graphene in the High-Current Limit journal August 2009
Anomalous kink behavior in the current-voltage characteristics of suspended carbon nanotubes journal February 2012
Phonon Anharmonicities in Graphite and Graphene journal October 2007
High-Field Electrical and Thermal Transport in Suspended Graphene journal February 2013
Thermal Conductance of the 2D MoS2/h-BN and graphene/h-BN Interfaces journal March 2017
Tunable Light–Matter Interaction and the Role of Hyperbolicity in Graphene–hBN System journal April 2015
Super-Planckian Electron Cooling in a van der Waals Stack journal March 2017
A Low-Power, Low-Cost Infra-Red Emitter in CMOS Technology journal December 2015
Photo-thermionic effect in vertical graphene heterostructures journal July 2016
Cooling of photoexcited carriers in graphene by internal and substrate phonons journal July 2012
Engineering of the thermodynamic properties of bilayer graphene by atomic plane rotations: the role of the out-of-plane phonons journal January 2015
Method of the correlative optimization of heat capacities of isostructural compounds journal March 2013
Tuning ultrafast electron thermalization pathways in a van der Waals heterostructure journal January 2016

Cited By (21)

Nonlinear optical absorption and asymmetric charge carrier conduction in chemical vapor deposited single-layer graphene journal January 2020
Energy losses and transition radiation in graphene traversed by a fast charged particle under oblique incidence journal November 2018
Tunable Infrared Emissivity in Multilayer Graphene by Ionic Liquid Intercalation journal July 2019
High-temperature electronic devices enabled by hBN-encapsulated graphene journal March 2019
Twisted bilayer graphene photoluminescence emission peaks at van Hove singularities journal April 2018
Fluorescent incandescent light sources from individual quadrilateral ZnO microwire via Ga-incorporation journal January 2019
Electroluminescent Devices Based on 2D Semiconducting Transition Metal Dichalcogenides journal August 2018
Graphene‐Based Devices for Thermal Energy Conversion and Utilization journal August 2019
Understanding Near Infrared Laser Driven Continuum White Light Emission by Graphene and Its Mixture with an Oxide Phosphor journal July 2019
Photoluminescence from Suspended and Supported Graphene journal October 2019
Light Emission by a Thermalized Ensemble of Emitters Coupled to a Resonant Structure journal April 2019
Flexible and Stretchable Electronics for Harsh‐Environmental Applications journal August 2019
Energy dissipation in van der Waals 2D devices journal June 2019
Thermal radiation control from hot graphene electrons coupled to a photonic crystal nanocavity journal January 2019
Electrostatic imaging of encapsulated graphene journal August 2019
Active metamaterial nearly perfect light absorbers: a review [Invited] journal January 2019
Nanostructured Graphene: An Active Component in Optoelectronic Devices journal May 2018
Atomically precise graphene etch stops for three dimensional integrated systems from two dimensional material heterostructures journal September 2018
Circularly Polarized Thermal Radiation From Nonequilibrium Coupled Antennas journal July 2019
Emerging photonic architectures in two-dimensional opto-electronics journal January 2018
A light emitter based on practicable and mass-producible polycrystalline graphene patterned directly on silicon substrates from a solid-state carbon source journal January 2019