Beilstein J. Nanotechnol.2018,9, 649–659, doi:10.3762/bjnano.9.60
processes: centrifugal and crossflowultrafiltration. The impact of purification is twofold: firstly, removal of excess sodium dodecyl sulfate (SDS) surfactant from the ink and, secondly, concentration of the photoactive components in the ink. The removal of SDS was studied in detail both by a UV–vis
spectroscopy-based method and by surface tension measurements of the nanoparticle ink filtrate; revealing that centrifugal ultrafiltration removed SDS at a higher rate than crossflowultrafiltration even though a similar filter was applied in both cases (10,000 Da Mw cut-off). The influence of SDS
: aqueous nanoparticle; crossflowultrafiltration; miniemulsion; organic photovoltaic; SDS surfactant; surface tension; Introduction
Organic photovoltaics (OPV) are a promising energy technology that utilizes large-scale roll-to-roll (R2R) fabrication techniques (such as slot-die coating, flexographical
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Figure 1:
(A) The Z-average size of poly(3-hexylthiophene) (P3HT):indene-C60 multiadducts (ICxA) NPs dialysed...