Co-axial electrospray: a versatile tool to fabricate hybrid electron transporting materials for high efficiency and stable perovskite photovoltaics.

ABSTRACT: We report a cost-effective and simple co-axial electrospray technique to fabricate a hybrid electron transporting material (ETM) consisting of a nanocomposite of hierarchically structured TiO₂ nanobeads (NBs) blended with ZnO nanofibers (NFs), namely ZnO NFs + TiO₂ NBs, for the first time ever. Owing to its large surface area, highly porous nature and fast electron transport, the hybrid ETM is further used in methylammonium lead iodide (CH₃NH₃PbI₃)-based perovskite solar cells (PSCs). The optimized cells utilizing the hybrid ETM exhibit a maximum power conversion efficiency (PCE_max) of 20.27%, the highest efficiency reported thus far for hybrid ETMs. Moreover, negligible hysteresis and highly reproducible values of PCE are o

SUBMITTER: Hameed M 

PROVIDER: S-EPMC9419739 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature