Investigation of azobenzene side group orientation in polymer surface relief gratings by means of photoelectron spectroscopy
- The molecular orientation of azobenzene side groups in polymer films before (nonpatterned) and after (patterned) development of a surface relief grating has been investigated by photoelectron spectroscopy using synchrotron radiation. The photoemission spectra obtained for 60-100 eV photons of a patterned and a nonpatterned surface are similar when the polarization vector of the synchrotron light is parallel to the grating vector. However, for perpendicular excitation, considerable spectral intensity differences can be observed for 9-14 eV electron binding energy. The observed changes are attributed to the formation of well-oriented azobenzenes at the surface. (C) 2004 American Institute of Physics
| Author details: | Oliver Henneberg, Thomas Geue, Ullrich Pietsch, Bernd Winter |
|---|---|
| URL: | http://scitation.aip.org/journals/doc/APPLAB-ft/vol_84/iss_9/1561_1.html |
| Publication type: | Article |
| Language: | English |
| Year of first publication: | 2004 |
| Publication year: | 2004 |
| Release date: | 2017/03/24 |
| Source: | Applied physics letters. - 84 (2004), 9, S. 1561 - 1563 |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| Peer review: | Referiert |
| Institution name at the time of the publication: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik |
