Fast Pixel Detectors: a paradigm shift in STEM imaging
Lead Research Organisation:
University of Oxford
Department Name: Materials
Abstract
Abstracts are not currently available in GtR for all funded research. This is normally because the abstract was not required at the time of proposal submission, but may be because it included sensitive information such as personal details.
Publications
Huth M
(2018)
4D Analytical STEM with the pnCCD
in Microscopy and Microanalysis
Yang H
(2015)
4D STEM: High efficiency phase contrast imaging using a fast pixelated detector
in Journal of Physics: Conference Series
Martinez G
(2017)
A Comparison of Phase-retrieval Algorithms for Focused-probe Electron Ptychography
in Microscopy and Microanalysis
Mostaed A
(2022)
A New Approach for 3D Quantitative STEM Using Defocus Corrected Electron Ptychography
in Microscopy and Microanalysis
Hum M
(2017)
Advanced 4D STEM Imaging with the pnCCD (S)TEM Camera
in Microscopy and Microanalysis
Martinez G
(2017)
Analysis of Phase Difference Variations for Strong Dynamical Objects Using Wigner Distribution Deconvolution Ptychography
in Microscopy and Microanalysis
Kirkland A
(2022)
Applications of Low Dose Electron Ptychography.
in Microscopy and Microanalysis
Hao B
(2023)
Atomic-scale imaging of polyvinyl alcohol crystallinity using electron ptychography
in Polymer
O'Leary CM
(2021)
Contrast transfer and noise considerations in focused-probe electron ptychography.
in Ultramicroscopy
O'Leary C
(2019)
Contrast Transfer and Noise Minimization in Electron Ptychography
in Microscopy and Microanalysis
Van Aert S
(2019)
Control of Knock-On Damage for 3D Atomic Scale Quantification of Nanostructures: Making Every Electron Count in Scanning Transmission Electron Microscopy.
in Physical review letters
Pei X
(2023)
Cryogenic electron ptychographic single particle analysis with wide bandwidth information transfer
in Nature Communications
Sagawa R
(2017)
Development of Fast Pixelated STEM Detector and its Applications using 4-Dimensional Dataset
in Microscopy and Microanalysis
Song W
(2022)
Direct imaging of oxygen shifts associated with the oxygen redox of Li-rich layered oxides
in Joule
Song W
(2021)
Direct Imaging of Oxygen Sub-lattice Deformation in Li-rich Cathode Material Using Electron Ptychography
in Microscopy and Microanalysis
Pennycook TJ
(2015)
Efficient phase contrast imaging in STEM using a pixelated detector. Part 1: experimental demonstration at atomic resolution.
in Ultramicroscopy
Yang H
(2015)
Efficient phase contrast imaging in STEM using a pixelated detector. Part II: optimisation of imaging conditions.
in Ultramicroscopy
Pennycook T
(2019)
Efficient Phase Contrast Imaging via Electron Ptychography, a Tutorial
in Microscopy and Microanalysis
Gao S
(2017)
Electron ptychographic microscopy for three-dimensional imaging.
in Nature communications
Yang H
(2017)
Electron ptychographic phase imaging of light elements in crystalline materials using Wigner distribution deconvolution.
in Ultramicroscopy
O'Leary C
(2019)
Electron Ptychography Using Fast Binary 4D STEM Data
in Microscopy and Microanalysis
Yang H
(2016)
Enhanced Phase Contrast Transfer using Ptychography Combined with a Pre-Specimen Phase Plate in a Scanning Transmission Electron Microscope
in Microscopy and Microanalysis
Nellist P
(2016)
European Microscopy Congress 2016: Proceedings
Nellist P
(2018)
Exploring the Limits of Focused-Probe STEM Ptychography
in Microscopy and Microanalysis
Clark L
(2022)
Exploring the Validity Limits of Direct Ptychographic Methods to Analyse 4D Scanning Transmission Electron Microscopy Datasets
in Microscopy and Microanalysis
O'Leary C
(2020)
Focused-probe STEM Ptychography: Developments and Opportunities
in Microscopy and Microanalysis
Nellist P
(2018)
Focused-Probe STEM Ptychography: Reconstruction Methods, Transfer Functions and Signal-to-Noise
in Microscopy and Microanalysis
Pennycook T
(2019)
High dose efficiency atomic resolution imaging via electron ptychography
in Ultramicroscopy
Song W
(2022)
Imaging Structural Defects and Associated Oxygen Positions in Li-rich Li1.2Ni0.13Mn0.54Co0.13O2
in Microscopy and Microanalysis
O'Leary C
(2022)
Increasing Spatial Fidelity and SNR of 4D-STEM Using Multi-Frame Data Fusion
in Microscopy and Microanalysis
Chen T
(2019)
Interstitial Boron Atoms in the Palladium Lattice of an Industrial Type of Nanocatalyst: Properties and Structural Modifications.
in Journal of the American Chemical Society
Zhou L
(2020)
Low Dose Electron Ptychography for Cryo-biological Imaging
in Microscopy and Microanalysis
Sagawa R
(2018)
Low Dose Imaging by STEM Ptychography Using Pixelated STEM Detector
in Microscopy and Microanalysis
Lozano JG
(2018)
Low-Dose Aberration-Free Imaging of Li-Rich Cathode Materials at Various States of Charge Using Electron Ptychography.
in Nano letters
Zhou L
(2020)
Low-dose phase retrieval of biological specimens using cryo-electron ptychography.
in Nature communications
Ryll H
(2019)
Measuring Single Electrons - What Does it Mean?
in Microscopy and Microanalysis
O'Leary C
(2020)
Phase reconstruction using fast binary 4D STEM data
in Applied Physics Letters
Liberti E
(2017)
Phase Retrieval Quantitative Comparison Between Tilt-series Imaging in TEM and Position-resolved Coherent Diffractive Imaging in STEM
in Microscopy and Microanalysis
Pei X
(2021)
Ptychographic Single Particle Analysis for Biological Science
in Microscopy and Microanalysis
Liberti E
(2016)
Quantitative Comparison of Phase Contrast Imaging in Conventional TEM Focal Series and STEM Ptychography
in Microscopy and Microanalysis
Liberti E
(2021)
Quantitative electron ptychography for simultaneous light and heavy elements atom counting
in Acta Crystallographica Section A Foundations and Advances
Nam S
(2021)
Significant Performance Improvement in n-Channel Organic Field-Effect Transistors with C60 :C70 Co-Crystals Induced by Poly(2-ethyl-2-oxazoline) Nanodots.
in Advanced materials (Deerfield Beach, Fla.)
Yang H
(2016)
Simultaneous atomic-resolution electron ptychography and Z-contrast imaging of light and heavy elements in complex nanostructures.
in Nature communications
Yang H
(2017)
Simultaneous imaging of light and heavy elements at atomic resolution using electron ptychography and fast pixelated detectors
in Acta Crystallographica Section A Foundations and Advances
Stevens A
(2018)
Subsampled STEM-ptychography
in Applied Physics Letters
Clark L
(2023)
The Effect of Dynamical Scattering on Single-plane Phase Retrieval in Electron Ptychography
in Microscopy and Microanalysis
Pennycook T
(2018)
The Potential for Greater Clarity Cryo-Electron Microscopy via Ptychography
in Microscopy and Microanalysis
Liberti E
(2019)
Three-dimensional Electron Ptychography of Catalyst Nanoparticles using Combined HAADF STEM and Atom Counting
in Microscopy and Microanalysis
Martinez G
(2017)
Towards a Direct Visualization of Charge Transfer in Monolayer Hexagonal Boron Nitride using a Fast Pixelated Detector in the Scanning Transmission Electron Microscope
in Microscopy and Microanalysis
Description | We have developed a method to measure the phase shift as an electron wave passes through a thin sample used in a transmission electron microscope. The method makes use of a phase retrieval approach called electron ptychography, which we have implemented in high-resolution scanning transmission electron microscopy. The method allows light elements to be imaged in radiation-sensitive materials. It also allows for correction of residual aberrations and the retrieval of 3D information. |
Exploitation Route | The software developed during the project is available at the link above. |
Sectors | Energy,Healthcare,Manufacturing, including Industrial Biotechology,Pharmaceuticals and Medical Biotechnology |
URL | https://gitlab.com/ptychoSTEM/ptychoSTEM |
Description | The use of 4 dimensional scanning transmission electron microscopy (4D STEM) has now become widespread, with the outcomes of this project providing some of the seminal methods and exemplar applications. The papers from the project have been cumulatively cited several many hundreds of times. The software methods have also been widely used, either from our own open source resource, or through incorporation into other open source libraries. The increased interest in 4D STEM has led to instrumental advances, with several manufacturers developing the necessary detectors. The techniques developed are now being used in applications including catalysis, photovoltaics, battery materials and polymer degradation. Please also see the impact description provided for EP/M009963/1 |
Sector | Energy,Environment |
Impact Types | Economic |
Description | Glasgow Fast Pixelated Detectors |
Organisation | University of Glasgow |
Department | Physics and Astronomy Department |
Country | United Kingdom |
Sector | Academic/University |
PI Contribution | We have made available software and methods for ptychographical reconstruction using STEM pixelated detector data. |
Collaborator Contribution | Access to the Medipix detector for data acquisition. |
Impact | Conference abstracts and presentations so far in this grant. |
Start Year | 2015 |
Description | JEOL / PN Detector |
Organisation | Jeol UK Ltd |
Country | United Kingdom |
Sector | Private |
PI Contribution | Demonstration of applications of prototype fast pixelated STEM detector. |
Collaborator Contribution | Loan of prototype fast pixelated detector. |
Impact | See publications linked to this award with JEOL co-authors. |
Start Year | 2015 |
Title | PtychoSTEM |
Description | Ptychography reconstruction software for 4D STEM data sets |
Type Of Technology | Software |
Year Produced | 2016 |
Open Source License? | Yes |
Impact | Widely used in the community. |