Dose limited reliability of quantitative annular dark field scanning transmission electron microscopy for nano-particle atom-counting.
Quantitative annular dark field scanning transmission electron microscopy (ADF STEM) has become a powerful technique to characterise nano-particles on an atomic scale. Because of their limited size and beam sensitivity, the atomic structure of such particles may become extremely challenging to deter...
| Main Authors: | , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
Elsevier
2015
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| _version_ | 1826298436213800960 |
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| author | De Backer, A Martinez, G MacArthur, K Jones, L Béché, A Nellist, P Van Aert, S |
| author_facet | De Backer, A Martinez, G MacArthur, K Jones, L Béché, A Nellist, P Van Aert, S |
| author_sort | De Backer, A |
| collection | OXFORD |
| description | Quantitative annular dark field scanning transmission electron microscopy (ADF STEM) has become a powerful technique to characterise nano-particles on an atomic scale. Because of their limited size and beam sensitivity, the atomic structure of such particles may become extremely challenging to determine. Therefore keeping the incoming electron dose to a minimum is important. However, this may reduce the reliability of quantitative ADF STEM which will here be demonstrated for nano-particle atom-counting. Based on experimental ADF STEM images of a real industrial catalyst, we discuss the limits for counting the number of atoms in a projected atomic column with single atom sensitivity. We diagnose these limits by combining a thorough statistical method and detailed image simulations. |
| first_indexed | 2024-03-07T04:46:48Z |
| format | Journal article |
| id | oxford-uuid:d39287ca-6b34-4fe3-814c-0bf615a0f2f4 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:46:48Z |
| publishDate | 2015 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | oxford-uuid:d39287ca-6b34-4fe3-814c-0bf615a0f2f42022-03-27T08:12:16ZDose limited reliability of quantitative annular dark field scanning transmission electron microscopy for nano-particle atom-counting.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:d39287ca-6b34-4fe3-814c-0bf615a0f2f4EnglishSymplectic Elements at OxfordElsevier2015De Backer, AMartinez, GMacArthur, KJones, LBéché, ANellist, PVan Aert, SQuantitative annular dark field scanning transmission electron microscopy (ADF STEM) has become a powerful technique to characterise nano-particles on an atomic scale. Because of their limited size and beam sensitivity, the atomic structure of such particles may become extremely challenging to determine. Therefore keeping the incoming electron dose to a minimum is important. However, this may reduce the reliability of quantitative ADF STEM which will here be demonstrated for nano-particle atom-counting. Based on experimental ADF STEM images of a real industrial catalyst, we discuss the limits for counting the number of atoms in a projected atomic column with single atom sensitivity. We diagnose these limits by combining a thorough statistical method and detailed image simulations. |
| spellingShingle | De Backer, A Martinez, G MacArthur, K Jones, L Béché, A Nellist, P Van Aert, S Dose limited reliability of quantitative annular dark field scanning transmission electron microscopy for nano-particle atom-counting. |
| title | Dose limited reliability of quantitative annular dark field scanning transmission electron microscopy for nano-particle atom-counting. |
| title_full | Dose limited reliability of quantitative annular dark field scanning transmission electron microscopy for nano-particle atom-counting. |
| title_fullStr | Dose limited reliability of quantitative annular dark field scanning transmission electron microscopy for nano-particle atom-counting. |
| title_full_unstemmed | Dose limited reliability of quantitative annular dark field scanning transmission electron microscopy for nano-particle atom-counting. |
| title_short | Dose limited reliability of quantitative annular dark field scanning transmission electron microscopy for nano-particle atom-counting. |
| title_sort | dose limited reliability of quantitative annular dark field scanning transmission electron microscopy for nano particle atom counting |
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