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Title: 3D Bragg Coherent Diffraction Imaging of Extended Nanowires: Defect Formation in Highly Strained InGaAs Quantum Wells

Journal Article · · ACS Nano

InGaAs quantum wells embedded in GaAs nanowires can serve as compact near-infrared emitters for direct integration onto Si complementary metal oxide semiconductor technology. While the core–shell geometry in principle allows for a greater tuning of composition and emission, especially farther into the infrared, the practical limits of elastic strain accommodation in quantum wells on multifaceted nanowires have not been established. One barrier to progress is the difficulty of directly comparing the emission characteristics and the precise microstructure of a single nanowire. Here, in this study, we report an approach to correlating quantum well morphology, strain, defects, and emission to understand the limits of elastic strain accommodation in nanowire quantum wells specific to their geometry. We realize full 3D Bragg coherent diffraction imaging (BCDI) of intact quantum wells on vertically oriented epitaxial nanowires, which enables direct correlation with single-nanowire photoluminescence. By growing In0.2Ga0.8As quantum wells of distinct thicknesses on different facets of the same nanowire, we identified the critical thickness at which defects are nucleated. A correlation with a traditional transmission electron microscopy analysis confirms that BCDI can image the extended structure of defects. Finite element simulations of electron and hole states explain the emission characteristics arising from strained and partially relaxed regions. This approach, imaging the 3D strain and microstructure of intact nanowire core–shell structures with application-relevant dimensions, can aid the development of predictive models that enable the design of new compact infrared emitters.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
National Science Foundation (NSF); German Research Foundation (DFG); European Research Council (ERC); USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division; W.M. Keck Foundation
Grant/Contract Number:
AC02-06CH11357; DMR-1611341; DMR-1905768; DMR-1720139; ECCS-1542205; FI 947/4-1; KO 4005/7-1
OSTI ID:
1908116
Journal Information:
ACS Nano, Vol. 16, Issue 12; ISSN 1936-0851
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (68)

Plastic and Elastic Strain Fields in GaAs/Si Core–Shell Nanowires journal March 2014
Demonstration of Confined Electron Gas and Steep-Slope Behavior in Delta-Doped GaAs-AlGaAs Core–Shell Nanowire Transistors journal April 2015
Coherent diffraction imaging of a single epitaxial InAs nanowire using a focused x-ray beam journal March 2009
Measuring Three-Dimensional Strain and Structural Defects in a Single InGaAs Nanowire Using Coherent X-ray Multiangle Bragg Projection Ptychography journal January 2018
Probing the trapping and thermal activation dynamics of excitons at single twin defects in GaAs–AlGaAs core–shell nanowires journal November 2013
Low-threshold strain-compensated InGaAs/(In,Al)GaAs multi-quantum well nanowire lasers emitting near 1.3 μm at room temperature journal May 2021
Determination of the stacking fault density in highly defective single GaAs nanowires by means of coherent diffraction imaging journal June 2016
In situ Bragg coherent X-ray diffraction during tensile testing of an individual Au nanowire journal May 2018
Nanowire solar cells for next-generation photovoltaics journal August 2013
Plan-view transmission electron microscopy investigation of GaAs/(In,Ga)As core-shell nanowires journal September 2014
nextnano: General Purpose 3-D Simulations journal September 2007
Elastic energy relaxation and critical thickness for plastic deformation in the core-shell InGaAs/GaAs nanopillars journal March 2013
Boosting Hole Mobility in Coherently Strained [110]-Oriented Ge–Si Core–Shell Nanowires journal February 2017
Accurate, rapid identification of dislocation lines in coherent diffractive imaging via a min-max optimization formulation journal January 2018
Low substrate temperature molecular beam epitaxial growth and the critical layer thickness of InGaAs grown on GaAs journal September 1991
Coherent X-ray diffraction imaging meets ptychography to study core-shell-shell nanowires journal January 2018
Critical dimensions in coherently strained coaxial nanowire heterostructures journal June 2006
Analysis of strain and stacking faults in single nanowires using Bragg coherent diffraction imaging journal March 2010
Recombination dynamics in pseudomorphic and partially relaxedIn0.23Ga0.77As/GaAs quantum wells journal May 1990
Controlled polytypic and twin-plane superlattices in iii–v nanowires journal November 2008
Spatially-resolved luminescence and crystal structure of single core–shell nanowires measured in the as-grown geometry journal March 2020
Monolithic GaAs/InGaP nanowire light emitting diodes on silicon journal June 2008
GaAs–AlGaAs core–shell nanowire lasers on silicon: invited review journal April 2017
Coherent-diffraction imaging of single nanowires of diameter 95 nanometers journal May 2009
Three-dimensional Bragg coherent diffraction imaging of an extended ZnO crystal journal June 2012
Widely tunable GaAs bandgap via strain engineering in core/shell nanowires with large lattice mismatch journal June 2019
Concentration and Strain Fields inside a Ag/Au Core–Shell Nanowire Studied by Coherent X-ray Diffraction journal April 2013
Threefold rotational symmetry in hexagonally shaped core–shell (In,Ga)As/GaAs nanowires revealed by coherent X-ray diffraction imaging journal April 2017
Phase retrieval algorithms: a personal tour [Invited] journal December 2012
Structural and optical properties of high quality zinc-blende/wurtzite GaAs nanowire heterostructures journal December 2009
3D Imaging of Twin Domain Defects in Gold Nanoparticles journal May 2015
Analysis of Critical Dimensions for Nanowire Core-Multishell Heterostructures journal October 2015
Stability Limits and Defect Dynamics in Ag Nanoparticles Probed by Bragg Coherent Diffractive Imaging journal February 2017
Inversion Domain Boundaries in GaN Wires Revealed by Coherent Bragg Imaging journal September 2015
General approaches for shear-correcting coordinate transformations in Bragg coherent diffraction imaging. Part II journal March 2020
Direct Measurement of Coherency Limits for Strain Relaxation in Heteroepitaxial Core/Shell Nanowires journal October 2012
Anomalous coherent diffraction of core-shell nano-objects: A methodology for determination of composition and strain fields journal January 2013
An analytical model for the critical shell thickness in core/shell nanowires based on crystallographic slip journal November 2013
Energetics and atomic mechanisms of dislocation nucleation in strained epitaxial layers journal October 2003
A III–V nanowire channel on silicon for high-performance vertical transistors journal August 2012
Photoluminescence in strained InGaAs‐GaAs heterostructures journal November 1987
Direct Measure of Strain and Electronic Structure in GaAs/GaP Core−Shell Nanowires journal March 2010
Time-Resolved Coherent Diffraction of Ultrafast Structural Dynamics in a Single Nanowire journal April 2014
Influence of indium segregation on the emission from InGaAs/GaAs quantum wells journal April 1995
Phase retrieval algorithms: a comparison journal January 1982
Mechanical breakdown of bent silicon nanowires imaged by coherent x-ray diffraction journal December 2013
Well‐width dependence of the excitonic lifetime in strained III‐V quantum wells journal September 1992
Connecting Composition-Driven Faceting with Facet-Driven Composition Modulation in GaAs–AlGaAs Core–Shell Nanowires journal July 2018
Complete structural and strain analysis of single GaAs/(In,Ga)As/GaAs core–shell–shell nanowires by means of in-plane and out-of-plane X-ray nanodiffraction journal September 2018
Evidence of stacking-fault distribution along an InAs nanowire using micro-focused coherent X-ray diffraction journal March 2008
Coherent X‐ray nanodiffraction on single GaAs nanowires journal October 2011
Tuning Lasing Emission toward Long Wavelengths in GaAs-(In,Al)GaAs Core–Multishell Nanowires journal September 2018
InAs/GaAs Core–Shell Nanowires journal August 2011
Micro-beam Laue alignment of multi-reflection Bragg coherent diffraction imaging measurements journal August 2017
Strain in semiconductor core-shell nanowires journal September 2009
Geometric limits of coherent III-V core/shell nanowires journal August 2013
Structural Investigations of Core−shell Nanowires Using Grazing Incidence X-ray Diffraction journal March 2009
In Situ Coherent X-ray Diffraction during Three-Point Bending of a Au Nanowire: Visualization and Quantification journal November 2018
High electron mobility in strained GaAs nanowires journal November 2021
General approaches for shear-correcting coordinate transformations in Bragg coherent diffraction imaging. Part I journal March 2020
The oversampling phasing method journal October 2000
A review of III–V nanowire infrared photodetectors and sensors journal February 2017
Optical characterization of pseudomorphic InxGa1−xAs–GaAs single‐quantum‐well heterostructures journal October 1986
Coulomb-Induced Suppression of Band-Edge Singularities in the Optical Spectra of Realistic Quantum-Wire Structures journal May 1996
X-ray Bragg Ptychography on a Single InGaN/GaN Core–Shell Nanowire journal March 2017
Structural investigation of InAs nanowires with coherent X-rays journal August 2009
3D Bragg coherent diffractive imaging of five-fold multiply twinned gold nanoparticle journal January 2017
Epitaxial III−V Nanowires on Silicon journal October 2004