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. 2020 Aug 14;8:725. doi: 10.3389/fchem.2020.00725

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Copyright © 2020 Yin, He, Wang, Wu, Pang, Xu and Wang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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TADF polymer design strategy. Type 1: TADF dendrimer with the acceptor as the central core and the peripheral donor as the dendrons. Type 2: TADF polymer with completely alternating connection of donor and acceptor (upper); TADF moieties separated by backbone spacer units (lower). Type 3: Donors fixed as backbone and acceptors grafted on the side-chain. B, D, P and A denote backbone, donor, pendant and acceptor. Type 4: TADF moieties embedded into backbone as a pendant (upper); donor and acceptor molecularly separated while spatially close (lower). Type 5: The whole polymer exhibiting TADF effect rather than the small molecule monomer.