Sub-4 nm mapping of donor–acceptor organic semiconductor nanoparticle composition

Abstract

We report, for the first time, the sub-nanometre mapping of donor:acceptor nanoparticle composition in eco-friendly colloidal dispersions for organic electronics. Low energy scanning transmission electron microscopy (STEM) energy dispersive X-ray...

Organic semiconductor nanoparticles for visible-light-driven CO2 conversion

“…3a). 19,31 Here, PC 71 BM formed the amorphous core and PM6 the semi-uniform shell, as determined from the 2.2 nm lattice spacing observed in the shell, which corresponds to the typical PM6 lamellar stacking distance (Fig. S8, ESI†).…”

Water-based solar cells over 10% efficiency: designing soft nanoparticles for improved processability

“…Therefore, a core–shell morphology has mostly been reported in the literature. 18 Although the use of miniemulsion is largely represented in the literature (more than 80% of dispersion-based solar cells reported), the efficiencies have remained quite low (below 5%), 19,20 attributed to the unfavorable core–shell morphology. However, through careful selection of the donor:acceptor couple 21 or the surfactant molecule, 22 the core–shell morphology can be prevented.…”