Ultrasoft and High-Mobility Block Copolymers for Skin-Compatible Electronics

Ditte K, Perez J, Chae S, Hambsch M, Al-Hussein M, Komber H, Formanek P, Mannsfeld SCB, Fery A, Kiriy A, Lissel F (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Advanced Materials Wiley

Book Volume: 33

Article Number: 2005416

Journal Issue: 4

DOI: 10.1002/adma.202005416

Abstract

Polymer semiconductors (PSCs) are an essential component of organic field-effect transistors (OFETs), but their potential for stretchable electronics is limited by their brittleness and failure susceptibility upon strain. Herein, a covalent connection of two state-of-the-art polymers—semiconducting poly-diketo-pyrrolopyrrole-thienothiophene (PDPP-TT) and elastomeric poly(dimethylsiloxane) (PDMS)—in a single triblock copolymer (TBC) chain is reported, which enables high charge carrier mobility and low modulus in one system. Three TBCs containing up to 65 wt% PDMS were obtained, and the TBC with 65 wt% PDMS content exhibits mobilities up to 0.1 cm2 V−1 s−1, in the range of the fully conjugated reference polymer PDPP-TT (0.7 cm2 V−1 s−1). The TBC is ultrasoft with a low elastic modulus (5 MPa) in the range of mammalian tissue. The TBC exhibits an excellent stretchability and extraordinary durability, fully maintaining the initial electric conductivity in a doped state after 1500 cycles to 50% strain.

Involved external institutions

Leibniz-Institut für Polymerforschung Dresden e. V. DE Germany (DE) Technische Universität Dresden DE Germany (DE)

How to cite

APA:

Ditte, K., Perez, J., Chae, S., Hambsch, M., Al-Hussein, M., Komber, H.,... Lissel, F. (2021). Ultrasoft and High-Mobility Block Copolymers for Skin-Compatible Electronics. Advanced Materials, 33(4). https://doi.org/10.1002/adma.202005416

MLA:

Ditte, Kristina, et al. "Ultrasoft and High-Mobility Block Copolymers for Skin-Compatible Electronics." Advanced Materials 33.4 (2021).

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