Wang M, Fu S, Petkov P, Fu Y, Zhang Z, Liu Y, Ma J, Chen G, Gali SM, Gao L, Lu Y, Paasch S, Zhong H, Steinrück HP, Cánovas E, Brunner E, Beljonne D, Bonn M, Wang HI, Dong R, Feng X (2023)
Publication Type: Journal article
Publication year: 2023
DOI: 10.1038/s41563-023-01581-6
Two-dimensional conjugated polymers (2DCPs), composed of multiple strands of linear conjugated polymers with extended in-plane π-conjugation, are emerging crystalline semiconducting polymers for organic (opto)electronics. They are represented by two-dimensional π-conjugated covalent organic frameworks, which typically suffer from poor π-conjugation and thus low charge carrier mobilities. Here we overcome this limitation by demonstrating two semiconducting phthalocyanine-based poly(benzimidazobenzophenanthroline)-ladder-type 2DCPs (2DCP-MPc, with M = Cu or Ni), which are constructed from octaaminophthalocyaninato metal(ii) and naphthalenetetracarboxylic dianhydride by polycondensation under solvothermal conditions. The 2DCP-MPcs exhibit optical bandgaps of ~1.3 eV with highly delocalized π-electrons. Density functional theory calculations unveil strongly dispersive energy bands with small electron–hole reduced effective masses of ~0.15m
APA:
Wang, M., Fu, S., Petkov, P., Fu, Y., Zhang, Z., Liu, Y.,... Feng, X. (2023). Exceptionally high charge mobility in phthalocyanine-based poly(benzimidazobenzophenanthroline)-ladder-type two-dimensional conjugated polymers. Nature Materials. https://doi.org/10.1038/s41563-023-01581-6
MLA:
Wang, Mingchao, et al. "Exceptionally high charge mobility in phthalocyanine-based poly(benzimidazobenzophenanthroline)-ladder-type two-dimensional conjugated polymers." Nature Materials (2023).
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