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Title: Visualizing Intrinsic 3D-Strain Distribution in Gold Coated ZnO Microstructures by Bragg Coherent X-Ray Diffraction Imaging and Transmission Electron Microscopy with Respect to Piezotronic Applications

Journal Article · · Advanced Electronic Materials
 [1];  [1];  [2];  [3];  [4];  [5];  [6];  [1];  [2];  [1];  [1]; ORCiD logo [1]
  1. University of Kiel (Germany)
  2. University of California, San Diego, CA (United States)
  3. University of Bremen (Germany)
  4. Karlsruhe Institute of Technology (KIT) (Germany)
  5. Argonne National Laboratory (ANL), Argonne, IL (United States)
  6. Karlsruhe Institute of Technology (KIT) (Germany); Technical University of Darmstadt (Germany)

Novel devices ranging from bio magnetic field sensors to energy harvesting nano machines utilize the piezotronic effect. For optimal function, understanding the interaction of electrical and strain phenomena within the semiconductor crystal is necessary. Here, studies of a model piezotronic system are presented, consisting of a ZnO microrod coated by a thin layer of gold, which forms a Schottky contact with the piezoelectric ZnO material. Coherent X-ray diffraction imaging (CXDI) and transmission electron microscopy (TEM) are used to visualize the structure and strain distribution, showing that the ZnO microrod exhibits strains of multiple origins in the bulk and at the interface. Strain values of -6 × 10-4 have been measured by CXDI at the ZnO/Au interface. The origin is shown to be a combination of an interface strain, possibly caused by the Schottky contact formation, and distinct, localized electrical fields inside the crystal which are assigned to electron depletion and screening in a bent ZnO/Au piezotronic rod. These findings will contribute to sensor development and to a better understanding of piezotronic applications.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); German Research Foundation (DFG); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
AC02-06CH11357; SC0001805
OSTI ID:
1970748
Journal Information:
Advanced Electronic Materials, Vol. 7, Issue 11; ISSN 2199-160X
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (61)

Taxel-Addressable Matrix of Vertical-Nanowire Piezotronic Transistors for Active and Adaptive Tactile Imaging journal April 2013
Piezotronic Graphene Artificial Sensory Synapse journal March 2019
Vertically Aligned CdSe Nanowire Arrays for Energy Harvesting and Piezotronic Devices journal July 2012
Piezoelectric nanogenerators with high performance against harsh conditions based on tunable N doped 4H-SiC nanowire arrays journal May 2021
Self-Biased Magnetoelectric Composites: An Overview and Future Perspectives journal January 2016
Exchange biasing of magnetoelectric composites journal April 2012
Recent Progress in Multiferroic Magnetoelectric Composites: from Bulk to Thin Films journal February 2011
Electrically modulated magnetoelectric sensors journal May 2016
First principle simulations of piezotronic transistors journal May 2015
Advances in piezotronic transistors and piezotronics journal April 2021
Piezotronic-based magnetoelectric sensor: Fabrication and response: Piezotronic-based magnetoelectric sensor journal March 2016
Nanogenerator and piezotronic inspired concepts for energy efficient magnetic field sensors journal February 2019
Physics of Semiconductor Devices book January 2007
Piezoelectricity journal February 1972
Ionicity and the theory of Schottky barriers journal February 1977
Piezotronic effect at Schottky barrier of a metal-ZnO single crystal interface journal April 2017
Local Strain Distribution in ZnO Microstructures Visualized with Scanning Nano X‐Ray Diffraction and Impact on Electrical Properties journal May 2021
Flexible Piezotronic Strain Sensor journal September 2008
Strain-Gated Piezotronic Logic Nanodevices journal November 2010
Effects of piezoelectric potential on the transport characteristics of metal-ZnO nanowire-metal field effect transistor journal June 2009
Piezoelectric Nanogenerators Based on Zinc Oxide Nanowire Arrays journal April 2006
Electrostatic Potential in a Bent Piezoelectric Nanowire. The Fundamental Theory of Nanogenerator and Nanopiezotronics journal August 2007
Equilibrium Potential of Free Charge Carriers in a Bent Piezoelectric Semiconductive Nanowire journal February 2009
Local magnetization and strain in single magnetoelectric microrod composites journal September 2013
Tunable Strain in Magnetoelectric ZnO Microrod Composite Interfaces journal July 2017
Coherent X-ray diffraction imaging of strain at the nanoscale journal April 2009
Nanoscale imaging of the full strain tensor of specific dislocations extracted from a bulk sample journal January 2020
Bragg coherent diffractive imaging of single-grain defect dynamics in polycrystalline films journal May 2017
Single Particle Nanomechanics in Operando Batteries via Lensless Strain Mapping journal August 2014
Structural Changes in a Single GaN Nanowire under Applied Voltage Bias journal July 2018
Three-dimensional optical trapping and orientation of microparticles for coherent X-ray diffraction imaging journal February 2019
Three-dimensional Bragg coherent diffraction imaging of an extended ZnO crystal journal June 2012
Coherent x-ray diffraction imaging of ZnO nanostructures under confined illumination journal March 2011
Three-dimensional mapping of a deformation field inside a nanocrystal journal July 2006
Synchrotron X-ray Analytical Techniques for Studying Materials Electrochemistry in Rechargeable Batteries journal September 2017
Strain mapping of semiconductor specimens with nm-scale resolution in a transmission electron microscope journal January 2016
Phase retrieval algorithms: a comparison journal January 1982
Phase-retrieval stagnation problems and solutions journal January 1986
Transparent Conductive Zinc Oxide book January 2008
Towards a quantitative determination of strain in Bragg Coherent X-ray Diffraction Imaging: artefacts and sign convention in reconstructions journal November 2019
Coherent X-Ray Diffraction Imaging and Characterization of Strain in Silicon-on-Insulator Nanostructures journal June 2014
Orientation variation of surface strain journal September 2007
Analysis of strain and stacking faults in single nanowires using Bragg coherent diffraction imaging journal March 2010
Inverse piezoelectric effect in polymers journal October 1965
Fabrication and Impedance Analysis of n-ZnO Nanorod/p-Si Heterojunctions to Investigate Carrier Concentrations in Zn/O Source- Ratio-Tuned ZnO Nanorod Arrays journal August 2007
Electrical transport properties of Zn doped ZnO journal November 1975
Interface Schottky barrier engineering via strain in metal–semiconductor composites journal January 2016
Change in equilibrium position of misfit dislocations at the GaN/sapphire interface by Si-ion implantation into sapphire—I. Microstructural characterization journal July 2015
Finite element analysis of stress relaxation in thin foil plan‐view transmission electron microscopy specimens journal October 1993
Geometric phase analysis of high-resolution electron microscopy images of antiphase domains: Example Cu 3 Au journal December 1997
Full piezoelectric tensors of wurtzite and zinc blende ZnO and ZnS by first-principles calculations journal November 2003
Investigation of structural and optical properties of ZnO thin films of different thickness grown by pulsed laser deposition method journal January 2019
Ultrathin Piezotronic Transistors with 2 nm Channel Lengths journal April 2018
Phase retrieval, error reduction algorithm, and Fienup variants: a view from convex optimization journal January 2002
Invited Article: A unified evaluation of iterative projection algorithms for phase retrieval journal January 2007
X-ray image reconstruction from a diffraction pattern alone journal October 2003
Partial coherence effects on the imaging of small crystals using coherent x-ray diffraction journal November 2001
High-resolution three-dimensional partially coherent diffraction imaging journal January 2012
Fabrication of Macroscopically Flexible and Highly Porous 3D Semiconductor Networks from Interpenetrating Nanostructures by a Simple Flame Transport Approach journal July 2013
D.c. properties of ZnO thin films prepared by r.f. magnetron sputtering journal December 1995
Capacitive properties of zinc oxide thin films by radiofrequency magnetron sputtering journal November 2018

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