Fig. 3: Structural characterizations of self-assembled :PDI2−/PDI2− organic semiconductor.
From: Solar overall water-splitting by a spin-hybrid all-organic semiconductor
a SEM images to show morphology evolution of ·PDI2− during the self-assembly. b AFM images of :PDI2−/PDI2− samples after 24 h and 120 h self-assembly and corresponding line-scan profile to show the thickness of :PDI2−/PDI2− nanobelt. c Single-crystal SAED pattern of :PDI2−/PDI2− nanobelts (120 h). d A simulated arrangement model of :PDI2−/PDI2− crystal according to the SAED and XRD patterns. e XRD patterns and ESR spectra of :PDI2−/PDI2− with different self-assembly times within 120 h. f Profiles of the changing a-axis length and 2θ diffraction angle during the self-assembly were calculated according to the {100} peak position in XRD patterns.
