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Related Experiment Video

Updated: Jul 15, 2026

Fabrication of Spatially Confined Complex Oxides
08:45

Fabrication of Spatially Confined Complex Oxides

Published on: July 1, 2013

Reversible light and air-driven lithography by singlet oxygen.

Werner Fudickar1, Andreas Fery, Torsten Linker

  • 1Institute of Chemistry, University of Potsdam, Karl-Liebknecht Str. 24-25, D-14476 Potsdam/Golm, Germany.

Journal of the American Chemical Society
|June 30, 2005
PubMed
Summary

Diphenylanthracene thin films can be patterned using light and heat. This reversible photo-oxidation creates erasable fluorescent patterns, useful for dynamic displays and data storage.

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Area of Science:

  • Photochemistry
  • Materials Science
  • Organic Electronics

Background:

  • Diphenylanthracene (DPA) is a fluorescent organic molecule.
  • Photo-oxidation is a chemical reaction involving light and oxygen.
  • Reversible reactions are crucial for dynamic material applications.

Purpose of the Study:

  • To investigate the photo-oxidation of DPA thin films.
  • To develop a method for creating 2D fluorescent patterns.
  • To demonstrate the reversibility and erasability of these patterns.

Main Methods:

  • Irradiation of DPA monolayers/thin films in air with a singlet oxygen sensitizer.
  • Thermal treatment to reverse the photo-oxidation.
  • Microscopy and spectroscopy to characterize fluorescent patterns.

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Last Updated: Jul 15, 2026

Fabrication of Spatially Confined Complex Oxides
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Published on: July 1, 2013

Patterning via Optical Saturable Transitions - Fabrication and Characterization
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Patterning via Optical Saturable Transitions - Fabrication and Characterization

Published on: December 11, 2014

Multi-step Variable Height Photolithography for Valved Multilayer Microfluidic Devices
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Published on: January 27, 2017

Main Results:

  • DPA undergoes reversible photo-oxidation to endoperoxides upon irradiation.
  • Heating the endoperoxides regenerates the original DPA.
  • This process enables the writing and erasing of 2D fluorescent patterns.

Conclusions:

  • Light-induced reversible photo-oxidation of DPA is a viable method for creating dynamic fluorescent patterns.
  • The ability to erase and rewrite patterns offers potential for applications in rewritable data storage and adaptive displays.