Abstract
ABSTRACT Graphene quantum dot (GQD) and carbon quantum dot (CQD) nanoparticles and their supramolecules, including wrapped poly[bis(triiso-propylsilylethynyl) benzodithiophene-bis(decyltetradecyl-thien) naphthobisthiadiazole] (PBDT-TIPS-DTNT-DT)/GQD and wrapped PBDT-TIPS-DTNT-DT/CQD nanostructures, were prepared and employed in CH3NH3PbI3 perovskite solar cells. All positive features of wrapped nano-hybrids had a synergetic effect on photovoltaic features. Owing to more mature configuration of GQD-based wrapped supramolecules, somewhat better results were obtained compared to CQD-based nanoparticles. The highest short circuit current density (Jsc), fill factor (FF), open circuit voltage (Voc) and, consequently, power conversion efficiency (PCE) parameters were acquired for perovskite + wrapped PBDT-TIPS-DTNT-DT/GQD solar cells (20.13 mA/cm2, 73%, 0.94 V and 13.81%).
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