Electron transport in a sequentially doped naphthalene diimide polymer
Electron transport in a sequentially doped naphthalene diimide polymer
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DOI：
10.1039/d0ma00406e
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发表时间：
2020-09-01
影响因子：
5
通讯作者：
Marder, Seth R.
中科院分区：
文献类型：
--
作者：
Al Kurdi, Khaled;Gregory, Shawn A.;Marder, Seth R.
本文报道了顺序n掺杂对高电子迁移率萘二酰亚胺共聚物聚[（N，N ' -双（2-癸基十四烷基）-萘-1，8：4，5-双（二甲酰亚胺）-2，6-二基）-（硒杂-2，5-二基）-（苯并[c][1，2，5]噻二唑-4，7-二基）-（硒杂-2，5-二基）] PNBS的影响。掠入射XRD测量显示，掺杂有2，2 ' -双（4-（二甲氨基）苯基）-1，1'，3，3 ' -四甲基-2，2'，3，3 ' -四氢-1H，1 ' H-2，2 ' -二苯并[d]咪唑（N-DMBI）（2）的PNBS相对于原始聚合物和掺杂有钌五甲基双三甲基苯二聚体的膜具有增加的有序度。用（N-DMBI）（2）最佳掺杂的PNBS膜在空气中显示出接近2 mS cm（-1）的电导率。依赖于温度的电测量表明，极化电荷载流子是高度本地化的，这是一致的，得到的中等电导率值。
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.