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Title: Interband Tunneling for Hole Injection in III-Nitride Ultraviolet Emitters

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4917529· OSTI ID:1235262

Low p-type conductivity and high contact resistance remain a critical problem in wide band gap AlGaN-based ultraviolet light emitters due to the high acceptor ionization energy. In this work, interband tunneling is demonstrated for non-equilibrium injection of holes through the use of ultra-thin polarization-engineered layers that enhance tunneling probability by several orders of magnitude over a PN homojunction. Al0.3Ga0.7N interband tunnel junctions with a lowresistance of 5.6 × 10-4 Ω cm2 were obtained and integrated on ultraviolet light emitting diodes.Tunnel injection of holes was used to realize GaN-free ultraviolet light emitters with bottom and top n-type Al0.3Ga0.7N contacts. At an emission wavelength of 327 nm, stable output power of 6 W/cm2 at a current density of 120 A/cm2 with a forward voltage of 5.9 V was achieved. Our demonstration of efficient interband tunneling could enable device designs for higher efficiency ultraviolet emitters.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1235262
Alternate ID(s):
OSTI ID: 1420458
Report Number(s):
SAND2015-3693J; 583782
Journal Information:
Applied Physics Letters, Vol. 106, Issue 14; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 72 works
Citation information provided by
Web of Science

References (32)

AlGaN multiple quantum well based deep UV LEDs and their applications journal May 2006
Efficient and high-power AlGaN-based ultraviolet light-emitting diode grown on bulk GaN journal August 2001
Recent progress and future prospects of AlGaN-based high-efficiency deep-ultraviolet light-emitting diodes journal September 2014
Development of high efficiency 255-355 nm AlGaN-based light-emitting diodes journal May 2011
An aluminium nitride light-emitting diode with a wavelength of 210 nanometres journal May 2006
Ultraviolet light-emitting diodes based on group three nitrides journal February 2008
Tunnel-injection quantum dot deep-ultraviolet light-emitting diodes with polarization-induced doping in III-nitride heterostructures journal January 2014
Advances in group III-nitride-based deep UV light-emitting diode technology journal December 2010
AlGaN based deep ultraviolet light emitting diodes with high internal quantum efficiency grown by molecular beam epitaxy journal February 2011
AlGaN Deep-Ultraviolet Light-Emitting Diodes with External Quantum Efficiency above 10% journal July 2012
Multi-color light emitting diode using polarization-induced tunnel junctions journal June 2007
Tunnel junctions in GaN/AlN for optoelectronic applications conference January 2005
InGaN/GaN tunnel junctions for hole injection in GaN light emitting diodes journal October 2014
Low resistance GaN/InGaN/GaN tunnel junctions journal March 2013
Polarization-charge tunnel junctions for ultraviolet light-emitters without p-type contact journal January 2010
GaInN-Based Tunnel Junctions in n–p–n Light Emitting Diodes journal August 2013
Lateral current spreading in GaN-based light-emitting diodes utilizing tunnel contact junctions journal May 2001
Growth model for plasma-assisted molecular beam epitaxy of N-polar and Ga-polar InxGa1−xN
  • Nath, Digbijoy N.; Gür, Emre; Ringel, Steven A.
  • Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena, Vol. 29, Issue 2 https://doi.org/10.1116/1.3562277
journal March 2011
Tunneling-based carrier regeneration in cascaded GaN light emitting diodes to overcome efficiency droop journal August 2013
Mg acceptor level in AlN probed by deep ultraviolet photoluminescence journal August 2003
Photoluminescence studies of impurity transitions in Mg-doped AlGaN alloys journal March 2009
Ultra-low resistive GaSb/InAs tunnel junctions journal April 2011
Double quantum-well tunnel junctions with high peak tunnel currents and low absorption for InP multi-junction solar cells journal May 2012
Enhanced conductivity of tunnel junctions employing semimetallic nanoparticles through variation in growth temperature and deposition journal May 2010
Metamorphic GaAsP Tunnel Junctions for High-Efficiency III–V/IV Multijunction Solar Cell Technology journal September 2014
Efficient III–V tunneling diodes with ErAs recombination centers journal October 2010
Low resistance tunnel junctions with type-II heterostructures journal June 2006
Polarization-Induced Zener Tunnel Junctions in Wide-Band-Gap Heterostructures journal July 2009
Low-operation voltage of InGaN-GaN light-emitting diodes with Si-doped In/sub 0.3/Ga/sub 0.7/N/GaN short-period superlattice tunneling contact layer journal October 2001
GdN Nanoisland-Based GaN Tunnel Junctions journal May 2013
Quantum-Confined Stark Effect in an AlGaN/GaN/AlGaN Single Quantum Well Structure journal August 1999
Luminescence and absorption in InGaN epitaxial layers and the van Roosbroeck–Shockley relation journal August 2000

Cited By (23)

High-Output-Power Ultraviolet Light Source from Quasi-2D GaN Quantum Structure journal July 2016
Ultrawide-Bandgap Semiconductors: Research Opportunities and Challenges journal December 2017
The emergence and prospects of deep-ultraviolet light-emitting diode technologies journal March 2019
Structural and electrical characterization of monolithic core–double shell n-GaN/Al/p-AlGaN nanowire heterostructures grown by molecular beam epitaxy journal January 2019
Design and demonstration of ultra-wide bandgap AlGaN tunnel junctions journal September 2016
Sub-milliwatt AlGaN nanowire tunnel junction deep ultraviolet light emitting diodes on silicon operating at 242 nm journal November 2016
Tunnel-injected sub-260 nm ultraviolet light emitting diodes journal May 2017
234 nm and 246 nm AlN-Delta-GaN quantum well deep ultraviolet light-emitting diodes journal January 2018
Progress in efficient doping of high aluminum-containing group III-nitrides journal March 2018
229 nm UV LEDs on aluminum nitride single crystal substrates using p-type silicon for increased hole injection journal February 2018
Tunnel-injected sub 290 nm ultra-violet light emitting diodes with 2.8% external quantum efficiency journal February 2018
226 nm AlGaN/AlN UV LEDs using p-type Si for hole injection and UV reflection journal July 2018
(Ga,In)N/GaN light emitting diodes with a tunnel junction and a rough n-contact layer grown by metalorganic chemical vapor deposition journal May 2019
Theoretical estimation of tunnel currents in hetero-junctions: The special case of nitride tunnel junctions journal November 2019
Ultra-wide-bandgap AlGaN homojunction tunnel diodes with negative differential resistance journal August 2019
Ge doped GaN and Al 0.5 Ga 0.5 N-based tunnel junctions on top of visible and UV light emitting diodes journal December 2019
Greatly enhanced performance of AlGaN-based deep ultraviolet light emitting diodes by introducing a polarization modulated electron blocking layer journal January 2019
GaN/AlN quantum-disk nanorod 280 nm deep ultraviolet light emitting diodes by molecular beam epitaxy journal December 2019
AlGaN nanocrystals: building blocks for efficient ultraviolet optoelectronics journal January 2019
A Review of AlGaN-Based Deep-Ultraviolet Light-Emitting Diodes on Sapphire journal July 2018
Recent Advances on p-Type III-Nitride Nanowires by Molecular Beam Epitaxy journal September 2017
Design and Fabrication of the Reliable GaN Based Vertical-Cavity Surface-Emitting Laser via Tunnel Junction journal April 2019
Tunnel-injected sub-260 nm ultraviolet light emitting diodes text January 2017

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