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Journal Article

Alkali cluster films on insulating substrates - comparison between scanning force microscopy and extinction data

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Balzer,  F.
Department of Molecular Biology, MPI for biophysical chemistry, Max Planck Society;

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Jett,  S. D.
Department of Molecular Biology, MPI for biophysical chemistry, Max Planck Society;

Rubahn,  H.-G.
Max Planck Society;

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237953.pdf
(Publisher version), 0B

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Citation

Balzer, F., Jett, S. D., & Rubahn, H.-G. (1998). Alkali cluster films on insulating substrates - comparison between scanning force microscopy and extinction data. Chemical Physics Letters, 297, 273-280. Retrieved from http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TFN-3V8VF0R-K-2D&_cdi=5231&_user=38661&_pii=S0009261498011683&_orig=search&_coverDate=11%2F27%2F1998&_sk=997029996&view=c&wchp=dGLbVlb-zSkWA&md5=36cc5cebbdda2be984532789ee0e25db&ie=/sdarticle.pdf.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0012-FE2C-5
Abstract
Extinction spectra of alkali cluster films on mica substrates are recorded as a function of alkali metal deposition time. They are reproduced quantitatively by theoretical spectra of oblate spheroids, using cluster number density n, average cluster semi-axis [a] parallel to the mica surface, and mean ellipticity [R-perpendicular to] perpendicular to the surface obtained from scanning force microscopy images. It is found that reliable values of average cluster semi-axes can be obtained from optical spectra only by taking the distribution of perpendicular-plane ellipticities into account.