Incorporation of Carbon Nanotubes in Non-Fullerene Acceptor Organic Solar Cells: A Review

Abstract

Now a days, synthesis of non-fullerene acceptors in compared to fullerene acceptor is one of the most important areas of research. Organic solar cells with non-fullerene acceptors (NFA-OSCs) have good optical properties and adjustable electronic energy levels. Current revelations demonstrate the significant growth in power conversion efficiency of NFA OSCs in comparison to fullerene acceptor, exceeding up to 18%. Recently, Different researchers are working on different materials to be incorporated on multiple layers of OSCs such as Hole Transport Layer (HTL), Transparent Conductive Electrode (TCE). Out of these Carbon nanotubes (CNTs) have gained a lot of attention from researchers in the fabrication of NFA-OSCs due to their extraordinary low sheet resistance, excellent optical transmission and high electrical conductivity. As CNTs offer interpenetrating networks for charge carrier transport and exciton diffusion, Efficiency of Organic Solar Cells has enhanced. Present review outlines the recent development in NFA-OSCs incorporated CNTs as the transparent conductive electrode, active layer and metal electrode. Additionally, to increase the probability of advancement in the near future, a correlation between experimental and simulation-based outcomes has also been conducted.