Issue 6, 2020

Electron transport in a sequentially doped naphthalene diimide polymer

Abstract

The effects of sequential n-doping on a high-electron-mobility naphthalene-diimide-based copolymer poly[(N,N′-bis(2-decyltetradecyl)-naphthalene-1,8:4,5-bis(dicarboximide)-2,6-diyl)-(selenophene-2,5-diyl)-(benzo[c][1,2,5]thiadiazole-4,7-diyl)-(selenophene-2,5-diyl)], PNBS, are reported. Grazing-incidence XRD measurements show that PNBS doped with 2,2′-bis(4-(dimethylamino)phenyl)-1,1′,3,3′-tetramethyl-2,2′,3,3′-tetrahydro-1H,1′H-2,2′-bibenzo[d]imidazole, (N-DMBI)2, has increased order relative to both the pristine polymer and a film doped with ruthenium pentamethylcyclopentadienyl mesitylene dimer. Films of PNBS optimally doped with (N-DMBI)2 show electrical conductivities approaching 2 mS cm−1 in air. Temperature-dependent electrical measurements suggest that the polaronic charge carriers are highly localized, which is consistent with the moderate conductivity values obtained.

Graphical abstract: Electron transport in a sequentially doped naphthalene diimide polymer

Supplementary files

Article information

Article type
Paper
Submitted
10 Jun 2020
Accepted
03 Aug 2020
First published
12 Aug 2020
This article is Open Access
Creative Commons BY-NC license

Mater. Adv., 2020,1, 1829-1834

Electron transport in a sequentially doped naphthalene diimide polymer

K. Al Kurdi, S. A. Gregory, S. Jhulki, M. Conte, S. Barlow, S. K. Yee and S. R. Marder, Mater. Adv., 2020, 1, 1829 DOI: 10.1039/D0MA00406E

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