Fig 1 - uploaded by Bernhard Wessling
Content may be subject to copyright.
![Schematic structure of emeraldine salt of polyaniline in the polaron lattice state fully doped with sulfuric (a) and para-toluenesulfonic (b) acids, regioregular poly(3-dodecylthiophene) (c), and [6,6]-phenyl-C61-butyric acid methyl ester (d). The appearance of positive charged polaron in the P3DDT backbone due to photoinitiated charge separation and transfer to the fullerene globe is shown.](profile/Bernhard-Wessling/publication/256093016/figure/fig1/AS:392577896468480@1470609272153/Schematic-structure-of-emeraldine-salt-of-polyaniline-in-the-polaron-lattice-state-fully.png)
Schematic structure of emeraldine salt of polyaniline in the polaron lattice state fully doped with sulfuric (a) and para-toluenesulfonic (b) acids, regioregular poly(3-dodecylthiophene) (c), and [6,6]-phenyl-C61-butyric acid methyl ester (d). The appearance of positive charged polaron in the P3DDT backbone due to photoinitiated charge separation and transfer to the fullerene globe is shown.
Source publication
tThe first results of the light-induced EPR study of magnetic, relaxation and dynamic parameters of chargecarriers stabilized in emeraldine salt form of polyaniline (PANI-ES) highly doped with sulfuric (SA) andpara-toluenesulfonic (pTSA) acids, spin pairs background photoinitiated in bulk heterojunctions formedby poly(3-dodecylthiophene) with [6,6]...
Contexts in source publication
Context 1
... 7.1 S/cm, respectively. Soluble regioregular poly(3-dodecylthiophene) (P3DDT) purchased from Aldrich and [6,6]-phenyl-C 61 -butyric acid methyl ester (PCBM) purchased from Solenne BV were also used to produce bulk het- erojunctions, in which hole and radical anion charge carriers were photoinitiated. These ingredients are shown schematically in Fig. ...
Context 2
... PANI-SA and PANI-pTSA samples shown in Fig. 1a and b exhibit single 3-cm waveband EPR spectra presented in Fig. 2a and b, attributed to polarons P ...
Context 3
... that is characteristic of paramagnetic centers in crystalline high-conductive solids [9,20,27]. As-prepared P3DDT/PCBM sample does not demonstrate any EPR spectrum without light irradiation (Fig. 2c). When illuminated by visible light, positively charged polaron is formed on a polymer backbone due to electron transfer to methanofullerene (see Fig. 1). Various experimental methods have shown the reversibility of this process and its stability over time [10,11]. Thus, two partly overlapping LEPR lines are observed at low temperatures (Fig. 2c). As in our previous studies [14,24], this spectrum was attributed to radical pairs of positively charged diffusing polarons P ...
