TY  - JOUR
A1  - Mechau, Norman
A1  - Saphiannikova, Marina
A1  - Neher, Dieter
T1  - Molecular tracer diffusion in thin azobenzene polymer layers
T2  - Applied physics letters
N2  - Translational diffusion of fluorescent tracer molecules in azobenzene polymer layers is studied at different temperatures and under illumination using the method of fluorescence recovery after photobleaching. Diffusion is clearly observed in the dark above the glass transition temperature, while homogeneous illumination at 488 nm and 100 mW/cm(2) does not cause any detectable diffusion of the dye molecules within azobenzene layers. This implies that the viscosity of azobenzene layers remains nearly unchanged under illumination with visible light in the absence of internal or external forces. (c) 2006 American Institute of Physics.
Y1  - 2006
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/46017
SN  - 0003-6951
VL  - 89
IS  - 25
PB  - Elsevier
CY  - Melville
ER  -