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dc.contributor.authorEdiger, Mark D
dc.contributor.authorde Pablo, Juan J
dc.contributor.authorAntony, Lucas
dc.contributor.authorWalters, Diane M
dc.date.accessioned2018-09-14T00:27:25Z
dc.date.available2018-09-14T00:27:25Z
dc.date.issued2018-09-14T00:27:25Z
dc.identifier.urihttp://digital.library.wisc.edu/1793/78718
dc.descriptionMetadata for a manuscript submitted to the Journal of Physical Chemistry Letters.en
dc.description.abstractHigh thermal stability and anisotropic molecular orientation enhances the performance of vapor-deposited organic semiconductors, but controlling these properties is a challenge in amorphous materials. To understand the influence of molecular shape on these properties, vapor-deposited glasses of three disk-shaped molecules were prepared. Enhanced thermal stability is observed for glasses prepared over a wide range of substrate temperatures and anisotropic molecular orientation is observed at lower substrate temperatures. We also performed atomistic simulations of thin liquid films of two of the disk-shaped molecules and find anisotropic molecular orientation at the equilibrium liquid surface. We propose that the structure and thermal stability of vapor-deposited glasses results from high surface mobility and partial equilibration toward the structure of the equilibrium liquid surface during the deposition process. For the three molecules studied, molecular shape is a dominant factor in determining the anisotropy of vapor-deposited glasses.en
dc.description.sponsorshipThe experimental measurements were supported by the US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, Award DE-SC0002161. The simulations were supported by National Science Foundation DMR-1234320.en
dc.language.isoen_USen
dc.subjectthermal stabilityen
dc.subjectmolecular orientationen
dc.subjectorganic electronicen
dc.subjectvapor depositionen
dc.subjectamorphousen
dc.titleInfluence of Molecular Shape on the Thermal Stability and Molecular Orientation of Vapor-Deposited Organic Semiconductorsen
dc.typeDataseten


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