Hybrid Heterojunction Nanorods for Nanoscale Controlled Morphology in Bulk Heterojunction Solar Cells
Nanorod
Hybrid solar cell
DOI:
10.1021/jp112369t
Publication Date:
2011-05-06T14:49:40Z
AUTHORS (16)
ABSTRACT
In this study, we report bulk heterojunction solar cells using hybrid nanorods as photoactive material. The core–shell are obtained via self-assembly of low band gap p-type oligomers onto ZnO nanorod surfaces. This produces highly soluble donor–acceptor nanostructures that feature a grafted semiconducting monolayer with 2.1 eV. solution processing the coaxial into thin films leads to heterojunctions particularly large interfaces. Importantly by simple donor domains smaller than typical exciton diffusion length organic semiconductors which guaranties efficient dissociation. corresponding reveal hydrid layers form interpenetrated networks lead external quantum efficiency 20% at absorption maximum λmax = 498 nm. Although these constituted monolayers, transient spectroscopy could evidence long-lived photoinduced charge carrier generation significant intensity. Thus described represent promising strategy toward nanoscale controlled cells.
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