PANI branches onto donor-acceptor copolymers: Synthesis, characterization and electroluminescent properties of new 2D-materials

17Citations
Citations of this article
12Readers
Mendeley users who have this article in their library.

Abstract

A new series of two-dimensional statistical conjugated polymers based on aniline and 9,9-dihexylfluorene as donor units and benzo- or naphtho-quinoxaline/thiadiazole derivatives as acceptor moieties, possessing PANI segments as side chains, were designed and synthesized. To investigate the effects of the perpendicular PANI branches on the properties of the main chain, the optical, electrochemical, morphological and electroluminescence properties were studied. The 2D materials tend to possess lower molecular weights and to absorb and to emit light red-shifted compared to the trunk 1D-polymers, in the yellow-red region of the visible spectrum. The 1D- and 2D-conjugated polymers present optical band gaps ranging from 2.15-2.55 eV, HOMO energy levels between -5.37 and -5.60 eV and LUMO energy levels between -3.02 and -3.29 eV. OLED devices based on these copolymers were fabricated. Although the performances were far from optimal due to the high turn-on voltages for which electroluminescence phenomena occur, a maximum luminescence of 55,100 cd/m2 together with a current density of 65 mA/cm2 at 18.5 V were recorded for a 2D-copolymer, PAFC6TBQ-PANI.

Cite

CITATION STYLE

APA

Jessop, I. A., Díaz, F. R., Terraza, C. A., Tundidor-Camba, A., Leiva, Á., Cattin, L., & Bèrnede, J. C. (2018). PANI branches onto donor-acceptor copolymers: Synthesis, characterization and electroluminescent properties of new 2D-materials. Polymers, 10(5). https://doi.org/10.3390/polym10050553

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free