Skip to Main content Skip to Navigation
Theses

Photoinduced deformation in thin films containing azo-derivatives: reversible and directional matter transport controlled by light polarization and photomechanical surface effects

Abstract : In this work we use direct local-probe techniques to study the photomechanical phenomena induced at micro- nanoscale in photochromic thin films containing azobenzene molecules. We show the existence of different mechanisms at the origin of the photo-induced deformation and their crucial dependence on the spatial distribu- tion of the light field polarization and intensity, which allows to coherently interpret far-field and near-field photo- deformation phenomena so far observed. Moreover, we investigate the near-field deformation effects due to the interaction between the local probe and the sample surface. Finally, we present preliminary studies of the photo- mechanical effects in layered hybrid metal/azo-polymer structures which open perspectives in view of applica- tions in the fields of nano-fabrication and nano-actuation of thin films and surfaces.
Complete list of metadatas

Cited literature [143 references]  Display  Hide  Download

https://pastel.archives-ouvertes.fr/pastel-00527388
Contributor : Filippo Fabbri <>
Submitted on : Tuesday, October 19, 2010 - 9:53:43 AM
Last modification on : Wednesday, March 27, 2019 - 4:18:02 PM
Long-term archiving on: : Friday, October 26, 2012 - 11:35:17 AM

Identifiers

  • HAL Id : pastel-00527388, version 1

Collections

Citation

Fabbri Filippo. Photoinduced deformation in thin films containing azo-derivatives: reversible and directional matter transport controlled by light polarization and photomechanical surface effects. Materials Science [cond-mat.mtrl-sci]. Ecole Polytechnique X, 2009. English. ⟨pastel-00527388⟩

Share

Metrics

Record views

481

Files downloads

1109