Photo-Cross-Linkable Polymeric Optoelectronics Based on the [2+2] Cycloaddition Reaction of Cinnamic Acid

Schelkle, Korwin M.; Bender, Markus; Beck, Sebastian; Jeltsch, Krischan F.; Stolz, Sebastian; Zimmermann, Johannes; Weitz, R. Thomas; Pucci, Annemarie; Müllen, Klaus; Hamburger, Manuel und Bunz, Uwe H. F. (2016): Photo-Cross-Linkable Polymeric Optoelectronics Based on the [2+2] Cycloaddition Reaction of Cinnamic Acid. In: Macromolecules, Vol. 49, No. 5: pp. 1518-1522

Abstract

We report the synthesis of cinnamic acid-functionalized conjugated polymers, which are cross-linked via [2 + 2] cycloaddition by UV illumination, reducing their solubility. The cross-linking reaction was investigated by a combination of FTIR and optical spectroscopy, and an optimum condition for the solubility modulation of thin films, a major challenge in the solution-phase fabrication of layered optoelectronic devices, was reached. As proof of concept, OLEDs were fabricated, using these conjugated polymers as emissive layers.

• Item Type: Journal article
• Faculties: Physics
• Subjects: 500 Science > 530 Physics
• ISSN: 0024-9297
• Language: English