Abstract
We report a novel two-dimensional gas-solid phase transition of pentacene molecules on the Cu(110)-(2 × 1)O surface where the 2D condensation is accompanied by a reversible azimuthal rotation of the pentacene molecules. The change of the optical anisotropy associated with this reorientation allows us to explore the 2D condensation as a function of coverage and temperature by reflectance difference spectroscopy. As a result, the 2D heat of condensation of pentacene on Cu(110)-(2 × 1)O is determined to be 84 meV, which is more than one order of magnitude smaller than the respective value for 3D crystallization.
Highlights
Adsorption of large -conjugated molecules on inorganic solid surfaces is a topic of great interest in both fundamental research and technological applications [1,2,3]
We report a novel two-dimensional gas-solid phase transition of pentacene molecules on the Cuð110Þ-ð2 Â 1ÞO surface where the 2D condensation is accompanied by a reversible azimuthal rotation of the pentacene molecules
The change of the optical anisotropy associated with this reorientation allows us to explore the 2D condensation as a function of coverage and temperature by reflectance difference spectroscopy
Summary
Adsorption of large -conjugated molecules on inorganic solid surfaces is a topic of great interest in both fundamental research and technological applications [1,2,3]. We report a novel two-dimensional gas-solid phase transition of pentacene molecules on the Cuð110Þ-ð2 Â 1ÞO surface where the 2D condensation is accompanied by a reversible azimuthal rotation of the pentacene molecules.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
