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Growth mode and sel...
Growth mode and self-organization of LuPc2 on Si(001)-2 x 1 vicinal surfaces : An optical investigation
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Boudet, S. (författare)
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- Bidermane, Ieva (författare)
- Uppsala universitet,Yt- och gränsskiktsvetenskap
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Lacaze, E. (författare)
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Gallas, B. (författare)
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Bouvet, M. (författare)
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Brunet, J. (författare)
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Pauly, A. (författare)
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Borensztein, Y. (författare)
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Witkowski, N. (författare)
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(creator_code:org_t)
- 2012
- 2012
- Engelska.
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Ingår i: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 86:11, s. 115413-
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We report an investigation of the initial growth and of the self-organization of lutetium biphthalocyanine LuPc2 on Si(001)-2 x 1 vicinal surfaces. Using surface-sensitive optical spectroscopies, namely, surface-difference-reflectance spectroscopy (SDRS) and reflectance-anisotropy spectroscopy (RAS), together with local-probe microscopies, we are able to propose a scenario for the growth mode up to about 20 nm. We demonstrate that the growth mode initially proceeds through the formation of a wetting layer, followed by the formation of clusters whose sizes increase while keeping a constant shape in which the molecules are inclined. Moreover, the LuPc2 molecules are self-organized along the step edges, and we are able to estimate that about 30% to 100% of the molecules are aligned when considering that the molecules are tilted by 45 degrees to 63 degrees with respect to the surface normal.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
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- art (ämneskategori)
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