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Reversible Photo-Induced Reshaping of Imprinted Microstructures Using a Low Molecular Azo Dye

Kaban, Burhan
Bagatur, Sekvan
Soter, Marcus
Hillmer, Hartmut
Fuhrmann-Lieker, Thomas

A blend of low molecular azo glass (AZOPD) and polystyrene (PS) were used for the systematic investigation of photo-induced stretching and recovery of nanoimprinted structures. For this purpose, light and heat was used as recovery stimuli. The AZOPD/PS microstructures, fabricated with thermal nanoimprint lithography (tNIL), comprises three different shapes (circles, crosses and squares) and various concentrations of AZOPD fractions. The results show a concentrationdependent reshaping. Particularly the sample with 43 w-% of the AZOPD fraction have shown the best controllable recovery for the used parameters. A possible explanation for shape recovery might be the stabilizing effect of the PS-matrix.

Sponsor
Gefördert durch den Publikationsfonds der Universität Kassel
Citation
In: Polymers Volume 14 / Issue 3 (2022-01-31) , S. ; eissn:2073-4360
Collections
@article{doi:10.17170/kobra-202205106156,
  author    ={Kaban, Burhan and Bagatur, Sekvan and Soter, Marcus and Hillmer, Hartmut and Fuhrmann-Lieker, Thomas},
  title    ={Reversible Photo-Induced Reshaping of Imprinted Microstructures Using a Low Molecular Azo Dye},
  keywords ={540 and Azofarbstoff and Nanophotonik and Nanoprägen and Mikrostruktur},
  copyright  ={http://creativecommons.org/licenses/by/4.0/},
  language ={en},
  journal  ={Polymers},
  year   ={2022-01-31}
}