Optimization of monochromated TEM for ultimate resolution imaging and ultrahigh resolution electron energy loss spectroscopy

Sergei Lopatin; Bin Cheng; Wei-Ting Liu; Meng-Lin Tsai; Jr-Hau He; Andrey Chuvilin

doi:10.1016/j.ultramic.2017.08.016

Optimization of monochromated TEM for ultimate resolution imaging and ultrahigh resolution electron energy loss spectroscopy

Sergei Lopatin^*, Bin Cheng, Wei-Ting Liu, Meng-Lin Tsai, Jr-Hau He, Andrey Chuvilin

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

32 Citations (Scopus)

Abstract

The performance of a monochromated transmission electron microscope with Wien type monochromator is optimized to achieve an extremely narrow energy spread of electron beam and an ultrahigh energy resolution with spectroscopy. The energy spread in the beam is improved by almost an order of magnitude as compared to specified values. The optimization involves both the monochromator and the electron energy loss detection system. We demonstrate boosted capability of optimized systems with respect to ultra-low loss EELS and sub-angstrom resolution imaging (in a combination with spherical aberration correction).

Original language	English
Pages (from-to)	109-115
Journal	Ultramicroscopy
Volume	184
Issue number	Part A
Online published	1 Sept 2017
DOIs	https://doi.org/10.1016/j.ultramic.2017.08.016
Publication status	Published - Jan 2018
Externally published	Yes

Research Keywords

Bandgap
EELS
Phonons
Plasmons
Sub-angstrom resolution
Ultra-low energy loss

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title = "Optimization of monochromated TEM for ultimate resolution imaging and ultrahigh resolution electron energy loss spectroscopy",

abstract = "The performance of a monochromated transmission electron microscope with Wien type monochromator is optimized to achieve an extremely narrow energy spread of electron beam and an ultrahigh energy resolution with spectroscopy. The energy spread in the beam is improved by almost an order of magnitude as compared to specified values. The optimization involves both the monochromator and the electron energy loss detection system. We demonstrate boosted capability of optimized systems with respect to ultra-low loss EELS and sub-angstrom resolution imaging (in a combination with spherical aberration correction).",

keywords = "Bandgap, EELS, Phonons, Plasmons, Sub-angstrom resolution, Ultra-low energy loss",

author = "Sergei Lopatin and Bin Cheng and Wei-Ting Liu and Meng-Lin Tsai and Jr-Hau He and Andrey Chuvilin",

year = "2018",

month = jan,

doi = "10.1016/j.ultramic.2017.08.016",

language = "English",

volume = "184",

pages = "109--115",

journal = "Ultramicroscopy",

issn = "0304-3991",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Optimization of monochromated TEM for ultimate resolution imaging and ultrahigh resolution electron energy loss spectroscopy

AU - Lopatin, Sergei

AU - Cheng, Bin

AU - Liu, Wei-Ting

AU - Tsai, Meng-Lin

AU - He, Jr-Hau

AU - Chuvilin, Andrey

PY - 2018/1

Y1 - 2018/1

N2 - The performance of a monochromated transmission electron microscope with Wien type monochromator is optimized to achieve an extremely narrow energy spread of electron beam and an ultrahigh energy resolution with spectroscopy. The energy spread in the beam is improved by almost an order of magnitude as compared to specified values. The optimization involves both the monochromator and the electron energy loss detection system. We demonstrate boosted capability of optimized systems with respect to ultra-low loss EELS and sub-angstrom resolution imaging (in a combination with spherical aberration correction).

AB - The performance of a monochromated transmission electron microscope with Wien type monochromator is optimized to achieve an extremely narrow energy spread of electron beam and an ultrahigh energy resolution with spectroscopy. The energy spread in the beam is improved by almost an order of magnitude as compared to specified values. The optimization involves both the monochromator and the electron energy loss detection system. We demonstrate boosted capability of optimized systems with respect to ultra-low loss EELS and sub-angstrom resolution imaging (in a combination with spherical aberration correction).

KW - Bandgap

KW - EELS

KW - Phonons

KW - Plasmons

KW - Sub-angstrom resolution

KW - Ultra-low energy loss

UR - http://www.scopus.com/inward/record.url?scp=85028700166&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85028700166&origin=recordpage

U2 - 10.1016/j.ultramic.2017.08.016

DO - 10.1016/j.ultramic.2017.08.016

M3 - RGC 21 - Publication in refereed journal

SN - 0304-3991

VL - 184

SP - 109

EP - 115

JO - Ultramicroscopy

JF - Ultramicroscopy

IS - Part A

ER -

Optimization of monochromated TEM for ultimate resolution imaging and ultrahigh resolution electron energy loss spectroscopy

Abstract

Research Keywords

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