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

Author(s)

Sergei Lopatin
Bin Cheng
Wei-Ting Liu
Meng-Lin Tsai
Andrey Chuvilin

Detail(s)

Original language	English
Pages (from-to)	109-115
Journal / Publication	Ultramicroscopy
Volume	184
Issue number	Part A
Online published	1 Sept 2017
Publication status	Published - Jan 2018
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1016/j.ultramic.2017.08.016 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85028700166&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(4dc32e59-d71f-41db-a138-72c96aa2e280).html

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).

Research Area(s)

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

Citation Format(s)

[ RIS ] [ BibTeX ]

Optimization of monochromated TEM for ultimate resolution imaging and ultrahigh resolution electron energy loss spectroscopy. / Lopatin, Sergei; Cheng, Bin; Liu, Wei-Ting et al.
In: Ultramicroscopy, Vol. 184, No. Part A, 01.2018, p. 109-115.

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

Lopatin, S, Cheng, B, Liu, W-T, Tsai, M-L, He, J-H & Chuvilin, A 2018, 'Optimization of monochromated TEM for ultimate resolution imaging and ultrahigh resolution electron energy loss spectroscopy', Ultramicroscopy, vol. 184, no. Part A, pp. 109-115. https://doi.org/10.1016/j.ultramic.2017.08.016

Lopatin, S., Cheng, B., Liu, W.-T., Tsai, M.-L., He, J.-H., & Chuvilin, A. (2018). Optimization of monochromated TEM for ultimate resolution imaging and ultrahigh resolution electron energy loss spectroscopy. Ultramicroscopy, 184(Part A), 109-115. https://doi.org/10.1016/j.ultramic.2017.08.016

Lopatin S, Cheng B, Liu WT, Tsai ML, He JH, Chuvilin A. Optimization of monochromated TEM for ultimate resolution imaging and ultrahigh resolution electron energy loss spectroscopy. Ultramicroscopy. 2018 Jan;184(Part A):109-115. Epub 2017 Sept 1. doi: 10.1016/j.ultramic.2017.08.016

Lopatin, Sergei ; Cheng, Bin ; Liu, Wei-Ting et al. / Optimization of monochromated TEM for ultimate resolution imaging and ultrahigh resolution electron energy loss spectroscopy. In: Ultramicroscopy. 2018 ; Vol. 184, No. Part A. pp. 109-115.