Author:
Kim Young-Min,Kang Ji-Sun,Kim Ji-Soo,Jeung Jong-Man,Lee Jeong-Yong,Kim Youn-Joong
Abstract
We introduce a simple preparation method for ultrathin carbon support
films that is especially useful for high-resolution electron microscopy
(HREM) of nanoparticles. Oxidized iron nanoparticles were used as a test
sample in a demonstration of this method. The film qualities are discussed
on the basis of electron-energy-loss spectroscopy (EELS) and image
analysis techniques such as thickness maps and histograms. We carried out
a comparison between the homemade and commercial film qualities. The
relative thickness of the homemade support films was 0.6 times less than
that of the commercial films, which was calculated from the EELS analysis,
whereas the thicknesses of both carbon support films varied within about
3%. The percentage of the observable area was about 67 ± 7.6% of
the support film. This was about twice as large as the commercial film (32
± 9.3%). The HREM image of the sample prepared with our support
film improved 9% in brightness and 15% in contrast compared with images
obtained with the commercial support.
Publisher
Cambridge University Press (CUP)
Reference19 articles.
1. Reichelt, R. , Konig, T. & Wangermann, G. (1977).Preparation of microgrids as specimen supports for high resolutionelectron microscopy.Micron 8,29–31.
2. Pease, D.C. (1975).Micronets for electron microscopy.Micron 6,85–92.
3. Moharir, A.V. & Prakash, N. (1975).Formvar holey films and nets for electron microscopy.J Phys E 8,288–290.
4. Harris, J.R. & Scheffler, D. (2002).Routine preparation of air-dried negatively stained and unstainedspecimens on holey carbon support films: A review of applications.Micron 33,461–480.
5. Johansen, B.V. (1976).Bright field electron microscopy of biological specimens. VI.Signal-to-noise ratio in specimens prepared on amorphous carbon andgraphite crystal supports.Micron 7,157–170.
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献