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PDPPs showing high cycling stability and cell viability for OECTs

A comprehensive investigation of four polydiketopyrrolopyrroles (PDPPs) with increasing ethylene glycol (EG) content and varying nature of comonomer is studied, and guidelines for the design of efficient mixed ion‐electron conductors (MIECs) are published in Adv. Funct. mater. 2021. A considerable cycling stability for 1200 cycles and an outstanding cell compatibility render these PDPPs as viable candidates for in vitro and in vivo bioelectronics.

A paradigm shift in doping p-type conjugated polymers published in Adv. Mater. 2020

We reported in Adv. Mater. 2020, a new doping strategy by mixing a hole conductor having partly filled HOMO and a conjugated polymer having fully occupied HOMO resulting in a HOMO-HOMO electron transfer. This was a joint research work with the Pflaum group of University of Würzburg. This concept opens new routes to dope p-type organic semiconductors to obtain highly stable doped systems. It also does not require any acceptor dopant molecule such as a fluorinated TCNQ derivative having low lying LUMO values.

Full-fledged measurement setup for OECTs established at AFUPO

Congrats Philip and his team! Philip, Jonas, Adrian and Florian have established a measurement setup for electrochemical transistors at AFUPO in our research building PNS. This setup is long overdue and allows us to study diverse mixed ion-electron conductor materials available in our research group.

Mukundan ThelakkatWelcome to Applied Functional Polymers group at University of Bayreuth!

We are an interdisciplinary group covering fields of Chemistry, Physics and Material Science.

Our objectives are

  • to design and develop novel tailor made functional molecules, polymers and block copolymers,
  • to combine organics with other functional inorganics to get hybrid systems and
  • to contribute conceptually to solar energy conversion and storage.

Our tools include diverse thin film preparation techniques, self-assembly and device preparation and characterization in addition to elaborate synthetic methods.

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