From binary to ternary solvent: morphology fine-tuning of D/A blends in PDPP3T-based polymer solar cells.
basic_science · Level V
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- Record sourced from PubMed, PMID 22991248.
- Also identified by DOI 10.1002/adma.201202855.
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Abstract
For the PDPP3T/PCBM system investigated here, atomic force microscopy, resonant soft X-ray scattering, and grazing incidence wide angle X-ray scattering are used as an initial set of tools to determine the surface texture, the bulk compositional morphology, and the crystallization behavior, respectively. We find systematic variations and relate them to device performance. A solvent mixture of DCB/CF/DIO = 76:19:5 (v/v/v) yields a PCE of 6.71%.