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Title: Synthesis of freestanding single-crystal perovskite films and heterostructures by etching of sacrificial water-soluble layers

Journal Article · · Nature Materials
DOI:https://doi.org/10.1038/nmat4749· OSTI ID:1326981
 [1];  [2];  [3];  [4];  [5];  [3]
  1. Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. Cornell Univ., Ithaca, NY (United States). Baker Lab.
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., Stanford, CA (United States)
  4. Cornell Univ., Ithaca, NY (United States)
  5. SLAC National Accelerator Lab., Menlo Park, CA (United States)

Here, the ability to create and manipulate materials in two-dimensional (2D) form has repeatedly had transformative impact on science and technology. In parallel with the exfoliation and stacking of intrinsically layered crystals1, 2, 3, 4, 5, atomic-scale thin film growth of complex materials has enabled the creation of artificial 2D heterostructures with novel functionality6, 7, 8, 9 and emergent phenomena, as seen in perovskite heterostructures10, 11, 12. However, separation of these layers from the growth substrate has proved challenging, limiting the manipulation capabilities of these heterostructures with respect to exfoliated materials. Here we present a general method to create freestanding perovskite membranes. The key is the epitaxial growth of water-soluble Sr3Al2O6 on perovskite substrates, followed by in situ growth of films and heterostructures. Millimetre-size single-crystalline membranes are produced by etching the Sr3Al2O6 layer in water, providing the opportunity to transfer them to arbitrary substrates and integrate them with heterostructures of semiconductors and layered compounds13, 14.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1326981
Report Number(s):
SLAC-PUB-16802; nmat4749
Journal Information:
Nature Materials, Journal Name: Nature Materials; ISSN 1476-1122
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 301 works
Citation information provided by
Web of Science

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Hydrogenation Dynamics of Electrically Controlled Metal–Insulator Transition in Proton‐Gated Transparent and Flexible WO 3 Transistors journal June 2019
Synergetic Behavior in 2D Layered Material/Complex Oxide Heterostructures journal December 2018
Ferroelectric Domain Wall Motion in Freestanding Single‐Crystal Complex Oxide Thin Film journal December 2019
Conductive Oxide Interfaces for Field Effect Devices journal June 2019
Stimulating Oxide Heterostructures: A Review on Controlling SrTiO 3 ‐Based Heterointerfaces with External Stimuli journal August 2019
Atomic Scale Understanding of the Epitaxy of Perovskite Oxides on Flexible Mica Substrate journal December 2019
Giant Uniaxial Strain Ferroelectric Domain Tuning in Freestanding PbTiO 3 Films journal April 2020
Epitaxial Liftoff of Wafer‐Scale VO 2 Nanomembranes for Flexible, Ultrasensitive Tactile Sensors journal April 2019
Nanoporous Films and Nanostructure Arrays Created by Selective Dissolution of Water-Soluble Materials journal September 2018
Liquid–Solid Interfacial Assemblies of Soft Materials for Functional Freestanding Layered Membrane–Based Devices toward Electrochemical Energy Systems journal April 2019
Rectifying Effect of the Sr 3 Al 2 O 6 /Ga 2 O 3 Heterojunction journal September 2019
Strain Tuning in Complex Oxide Epitaxial Films Using an Ultrathin Strontium Aluminate Buffer Layer journal January 2018
Assembly and Self-Assembly of Nanomembrane Materials-From 2D to 3D journal January 2018
Freestanding crystalline oxide perovskites down to the monolayer limit journal June 2019
Heterogeneous integration of single-crystalline complex-oxide membranes journal February 2020
Epitaxial growth and layer-transfer techniques for heterogeneous integration of materials for electronic and photonic devices journal October 2019
Enhanced bending-tuned magnetic properties in epitaxial cobalt ferrite nanopillar arrays on flexible substrates journal January 2018
Fabrication of ultralong perovskite structure nanotubes journal January 2018
Recent progress on flexible inorganic single-crystalline functional oxide films for advanced electronics journal January 2019
Development of oxide heteroepitaxy for soft technology journal January 2018
A versatile patterning process based on easily soluble sacrificial bilayers journal August 2017
Stressor-layer-induced elastic strain sharing in SrTiO 3 complex oxide sheets journal February 2018
Strain-induced resistance change in V 2 O 3 films on piezoelectric ceramic disks journal March 2019
Non-Ohmic conduction in exfoliated La 0.7 Ca 0.3 MnO 3 thin films journal January 2020
Spark plasma sintering of bulk SrAl 2 O 4 -Sr 3 Al 2 O 6 eutectic glass with wide-band optical window journal April 2018
Erasable and recreatable two-dimensional electron gas at the heterointerface of SrTiO 3 and a water-dissolvable overlayer journal August 2019
Extreme tensile strain states in La 0.7 Ca 0.3 MnO 3 membranes journal April 2020
Super-elastic ferroelectric single-crystal membrane with continuous electric dipole rotation journal October 2019
A general approach to obtain soft x-ray transparency for thin films grown on bulk substrates text January 2017
A general approach to obtain soft x-ray transparency for thin films grown on bulk substrates text January 2017
Nanoporous Films and Nanostructure Arrays Created by Selective Dissolution of Water-Soluble Materials. journalarticle January 2018
A general approach to obtain soft x-ray transparency for thin films grown on bulk substrates journal October 2017
Synergetic Behavior in 2D Layered Material/Complex Oxide Heterostructures text January 2019
Stressor-Layer-Induced Elastic Strain Sharing in SrTiO3 Complex Oxide Sheets text January 2020
Nanostructural Tailoring to Induce Flexibility in Thermoelectric Ca3Co4O9 Thin Films journal July 2017
Heteroepitaxial vertical perovskite hot-electron transistors down to the monolayer limit journal November 2019
Two-dimensional limit of crystalline order in perovskite membrane films journal November 2017