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Diffusion-limited submonolayer pentacene thin film growth on hydrogen-passivated Si(111) substrates
- Source :
-
Surface Science . Dec2005, p157-164. 8p. - Publication Year :
- 2005
-
Abstract
- Abstract: Growth of ultrathin pentacene films is investigated as a function of coverage by atomic force microscopy. Initially, pentacene grows as monolayer fractal islands and evolves into compact islands before coalescence. Stabilization factors, against diffusion-limited-aggregation in terms of interaction between islands and interlayer monomer transport, are proposed to explain the shape transition. Simulations based on a simple model of heterogeneous film growth are found to agree with experimental observations. The role of surface diffusion in island shape transition is revealed by a comparison between pentacene growth on the hydrogen terminated and oxidized Si substrates. [Copyright &y& Elsevier]
- Subjects :
- *MONOMOLECULAR films
*THIN films
*PROPERTIES of matter
*SEMICONDUCTOR doping
Subjects
Details
- Language :
- English
- ISSN :
- 00396028
- Database :
- Academic Search Index
- Journal :
- Surface Science
- Publication Type :
- Academic Journal
- Accession number :
- 18980692
- Full Text :
- https://doi.org/10.1016/j.susc.2005.08.004