Three-fold improvement in the performance of all-polymer photovoltaic devices with graphene

Conductive hybrid polymer composites based on recycled carbon fibres and carbon nanofillers

“…Most of the studies resulted in numerous commercial applications of CPC, e.g., as bipolar plates for polymer membrane fuel cells, organic solar cells, conductive adhesives and paints, pressure and strain sensors, actuators, biomaterials, etc. [1][2][3][4][5]. This type of composites consists of an insulating polymer matrix and an electrically conductive filler which provides a continuous conduction network due to the percolation mechanism.…”

Determination of active layer morphology in all-polymer photovoltaic cells

“…Although the addition of PG resulted in slightly improved solar cell efficiency, it had no measurable impact on the active layer morphology. We speculate, on the basis of our earlier work (Jin et al, 2015;Yu & Kuppa, 2013), that PG provided additional pathways for charge transport, but the exact mechanism of performance enhancement requires further investigation beyond the scope of this study.…”

“…, where a non-monotonic dependence of J sc on graphene addition was observed, showing a maximum of a threefold increase in efficiency and short-circuit current density (Jin et al, 2015).…”

“…Pristine graphene (PG) may be incorporated to impart higher charge carrier mobility and thus improve device performance (Jin et al, 2015;Robaeys et al, 2014;Yu & Kuppa, 2013). Graphene is a two-dimensional allotrope of carbon that possesses high charge carrier mobility (up to the order of 100 000 cm 2 (Vs) À1 (Iwan & Chuchmała, 2012;Novoselov et al, 2004).…”