Diffusion of deuterated pentacene molecules on exfoliated graphite in the sub-monolayer regime studied with NSE
Organic thin films such as pentacene (C22H14) films are promising systems for the development of novel electronic devices. However, the electrical properties of the resulting devices are limited by the quality of the films, which strongly depends on the growth process. Diffusion favours layer-by-layer growth since dissipative motion with frictional forces is an effective mechanism leading to the nucleation of stable islands. However the number of studies on pentacene diffusion on different technologically relevant substrates is very small if compared to structural studies. We propose to fill this gap with comprehensive measurements of the dynamics of (deuterated) pentacene on exfoliated graphite substrates in the sub-monolayer regime. The goal is to identify the physical mechanisms, which drive the first layer formation in a weakly physisorbed phase.
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CALVO ALMAZAN Irene; ALLISON W.; FOUQUET Peter and TAMTOEGL Anton. (2015). Diffusion of deuterated pentacene molecules on exfoliated graphite in the sub-monolayer regime studied with NSE. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.7-05-439
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