Revealing New Atomic-scale Information about Materials by Improving the Quality and Quantifiability of Aberration-corrected STEM Data

نویسندگان

  • Andrew B. Yankovich
  • Jie Feng
  • Alex Kvit
  • Thomas Slater
  • Sarah Haigh
  • Dane Morgan
  • Paul M. Voyles
چکیده

Recent advances in aberration-corrected scanning transmission electron microscopy (AC-STEM) have shown the world previously unattainable views into the atomic structure and composition of materials. Thanks to improved optics, experimental and environmental factors often limit the quality of information accessed by AC-STEM. However, collecting and processing AC-STEM data using new techniques from data science can help overcome these limitations, opening the door to new atomic-scale materials information by improving our ability to determine atomic column positions, measure 3D structures, detect single point defects, and determine the atomic-scale composition of materials.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The Versatile Imaging Capabilities of Aberration-Corrected STEM

The recent advancement in aberration-corrected electron microscopy, especially aberration-corrected STEM (AC-STEM), makes it possible to routinely extract atomic scale information of a variety of solid materials. With the availability of sub-angstrom size electron probes and the appropriate selection of detectors one can extract useful information on the atomic structure, chemical composition, ...

متن کامل

Applications of High Precision STEM Imaging to Structurally Complex Materials

Aberration corrected electron microscopy has made Ångstrom resolution imaging routine in labs across the world. One of the next frontiers is improving the quantitative reliability of data about materials we can extract from aberration-corrected images. We have developed a methodology based on non-rigid registration of a series of short exposure time STEM images which we call high precision STEM...

متن کامل

Nanostructural and chemical characterization of supported metal oxide catalysts by aberration corrected analytical electron microscopy

1359-0286/$ see front matter 2011 Elsevier Ltd. A doi:10.1016/j.cossms.2011.06.001 ⇑ Corresponding authors. Addresses: Departmen Vanderbilt University, Nashville, TN 37235, USA Materials Science and Engineering, Lehigh Univer USA(C.J. Kiely). E-mail addresses: [email protected] (W (C.J. Kiely). The performance of catalyst materials are usually governed by the precise atomic structure and c...

متن کامل

New possibilities with aberration-corrected electron microscopy.

Unlike light microscopy, where resolution is diffraction limited, the achievable resolution of electron microscopes is limited by lens aberrations so severe that the practical resolution is orders of magnitude worse than the diffraction limit. About 10 years ago, the first practical electron lens spherical aberration correctors were developed, and in the past decade, their performance, versatil...

متن کامل

Evaluation of Sensitivity of Multivariate Statistical Analysis on STEM Spectrum-Imaging Datasets and its Improvement

Aberration-corrected scanning transmission electron microscopy (STEM) is the essential approach for atomic-scale characterization towards advanced materials developments. Not only atomic-scale imaging but also chemical analysis via electron energy-loss spectrometry (EELS) and X-ray energy dispersive spectrometry (XEDS) can be performed routinely by using the latest aberration-corrected STEM ins...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2015