Oligo(aniline)-based Hole Transport Layer for Organic Solar Cells
발표자
()
초록
내용
The contribution of interfacial layers to device performance and stability is considered important. The most widely used hole transport layer (HTL) for conventional organic solar cells (OSCs) – PEDOT:PSS has some shortcomings such as the acidity and the hygroscopicity which cause the limitation for long-term stability. In this study, we report the doping system of an aniline derivative (PTA) and an aryl sulfonic acid (NSO-2), which can be employed as HTL for OSCs. Devices fabricated from this HTL on PM6:Y6 active layers exhibited comparative power conversion efficiency (PCE) with control device of PEDOT:PSS (14.94% vs. 15.05%). Moreover, the devices with PTA:NSO-2 HTL also emphasizes its better moisture stability than PEDOT:PSS. Therefore, this initial result demonstrates the potential of aniline-based materials as HTL for OSCs as well as motivates the further optimization to achieve the higher photovoltaic performance.