In this contribution, the modular design and synthesis of novel polymer-based photosystems is presented, aiming at efficient light-induced charge separation. Emphasis is put on simple and short syntheses routes and facile preparation of the materials. A case study of a modularly assembed photosystem is detailed. The triad assembly features a single central Ru(II) sensitizer sandwiched between two polymer chains bearing multiple triarylamine and naphthalenediimide units, respectively. Upon excitation, the efficient charge separation was observed (&gt;96%) with long lifetimes (400 ns). In addition, an significant prtion of an additional, even longer-lived, component (2,400 ns, 30%) is observed, whcih assigned to the possibility of secondary charge transfer within the polymer chains. These novel results demonstrate the feasablity of using tailored polymer-based photosystems for energy conversion and/or to provide local redox gradients to power molecular machines.

Simple and modular: Extending photo-driven charge separation in tailored <i>multi</i>donor-photosensitizer-<i>multi</i>acceptor polymer assemblies

254th National Meeting (2017)

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Simple and modular: Extending photo-driven charge separation in tailored multidonor-photosensitizer-multiacceptor polymer assemblies