A well-defined main-chain conjugated photoswitchable poly(3-hexylthiophene) with homogeneous hydrogen end groups was synthesized. Opening and closing the photoswitch enables reversible modulation of P3HT emission, which is quenched by 70% when the switch is closed. The optical properties during switching cycles were quantified by irradiation/spectroscopy sequences.
Dominic Raithel, Sebastian Baderschneider, Thiago B. de Queiroz, Ruth H. Lohwasser, Jürgen Köhler, Mukundan Mukundan Thelakkat, Stephan Kümmel, Richard Hildner
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