Atomic Resolution Defocused Electron Ptychography at Low Dose with a Fast, Direct Electron Detector

Electron ptychography has recently attracted considerable interest for high resolution phase-sensitive imaging. However, to date studies have been mainly limited to radiation resistant samples as the electron dose required to record a ptychographic dataset is too high for use with beam-sensitive mat...

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Autores principales: Song, Jiamei, Allen, Christopher S., Gao, Si, Huang, Chen, Sawada, Hidetaka, Pan, Xiaoqing, Warner, Jamie, Wang, Peng, Kirkland, Angus I.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6408533/
https://www.ncbi.nlm.nih.gov/pubmed/30850641
http://dx.doi.org/10.1038/s41598-019-40413-z
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author Song, Jiamei
Allen, Christopher S.
Gao, Si
Huang, Chen
Sawada, Hidetaka
Pan, Xiaoqing
Warner, Jamie
Wang, Peng
Kirkland, Angus I.
author_facet Song, Jiamei
Allen, Christopher S.
Gao, Si
Huang, Chen
Sawada, Hidetaka
Pan, Xiaoqing
Warner, Jamie
Wang, Peng
Kirkland, Angus I.
author_sort Song, Jiamei
collection PubMed
description Electron ptychography has recently attracted considerable interest for high resolution phase-sensitive imaging. However, to date studies have been mainly limited to radiation resistant samples as the electron dose required to record a ptychographic dataset is too high for use with beam-sensitive materials. Here we report defocused electron ptychography using a fast, direct-counting detector to reconstruct the transmission function, which is in turn related to the electrostatic potential of a two-dimensional material at atomic resolution under various low dose conditions.
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spelling pubmed-64085332019-03-12 Atomic Resolution Defocused Electron Ptychography at Low Dose with a Fast, Direct Electron Detector Song, Jiamei Allen, Christopher S. Gao, Si Huang, Chen Sawada, Hidetaka Pan, Xiaoqing Warner, Jamie Wang, Peng Kirkland, Angus I. Sci Rep Article Electron ptychography has recently attracted considerable interest for high resolution phase-sensitive imaging. However, to date studies have been mainly limited to radiation resistant samples as the electron dose required to record a ptychographic dataset is too high for use with beam-sensitive materials. Here we report defocused electron ptychography using a fast, direct-counting detector to reconstruct the transmission function, which is in turn related to the electrostatic potential of a two-dimensional material at atomic resolution under various low dose conditions. Nature Publishing Group UK 2019-03-08 /pmc/articles/PMC6408533/ /pubmed/30850641 http://dx.doi.org/10.1038/s41598-019-40413-z Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Song, Jiamei
Allen, Christopher S.
Gao, Si
Huang, Chen
Sawada, Hidetaka
Pan, Xiaoqing
Warner, Jamie
Wang, Peng
Kirkland, Angus I.
Atomic Resolution Defocused Electron Ptychography at Low Dose with a Fast, Direct Electron Detector
title Atomic Resolution Defocused Electron Ptychography at Low Dose with a Fast, Direct Electron Detector
title_full Atomic Resolution Defocused Electron Ptychography at Low Dose with a Fast, Direct Electron Detector
title_fullStr Atomic Resolution Defocused Electron Ptychography at Low Dose with a Fast, Direct Electron Detector
title_full_unstemmed Atomic Resolution Defocused Electron Ptychography at Low Dose with a Fast, Direct Electron Detector
title_short Atomic Resolution Defocused Electron Ptychography at Low Dose with a Fast, Direct Electron Detector
title_sort atomic resolution defocused electron ptychography at low dose with a fast, direct electron detector
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6408533/
https://www.ncbi.nlm.nih.gov/pubmed/30850641
http://dx.doi.org/10.1038/s41598-019-40413-z
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