Effect of Using Carbonous Materials on Active Layer Morphology of Polymer Solar Cells and Related Properties

Various carbon-based nanocomposites using neat and modified carbon nanotube (CNT) and reduced graphene oxide (rGO) were fabricated. These nanocomposites, butyric acid methyl ester (PC۷۱BM), and host poly[benzodithiophene-bis(decyltetradecyl-thien)naphthothiadiazole] (PTDT) chains were applied to fabricate the active layer of various polymer solar cells (PSCs). The morphology of constructed active layers was analyzed by transmission electron microscopy (TEM) and atomic force microscopy (AFM). Changing morphology caused alterations in PSC properties and stability. The obtained results showed that using nanocomposites led to morphology enhancement and improvement of PSC properties. PSC constructed by CNT-g-polyaniline (CNT-g-PANI)/PTDT nanocomposite had the best morphology and consequently the highest PSC properties. Simple PSC fabricated by PTDT: PC۷۱BM, without any nanocomposite, had the worst morphology and, finally, properties.

کلیدواژه ها:

Nanocomopsite ، CNT ، rGO ، PSC ، active layer morphology