Rapid solidification for green-solvent-processed large-area organic solar modules with >16% efficiency

Abstract

Enabling green-solvent-processed large-area organic solar cells (OSCs) is of great significance to their industrialization. However, precisely controlling the temperature-dependent fluid mechanics and evaporation behavior of green solvents with high-boiling points...

Fine-tuning of film morphology through addition of a third component enables organic solar cells with efficiency over 18%

“…Third, the film-forming stage. 49–51 As shown in Fig. S11a and b (ESI†), upon transitioning from the liquid to the solid state, both PM6 : Y6 : Y-TNF and PM6 : Y6 exhibited a redshifted between 700 nm and 900 nm in comparison to PM6 : Y6.…”

Polythiophene and its derivatives for all-polymer solar cells

“…1–7 Among them, all-polymer solar cells (all-PSCs), 8 whose active layer comprises conjugated polymer donors and conjugated polymer acceptors, offer advantages such as excellent mechanical ductility, device stability, and compatibility with roll-to-roll manufacturing technology. 9–18 The power conversion efficiency (PCE) of high-performance OSCs is rapidly exceeding 20%, propelled by breakthroughs in molecular design and device optimization. 19–24 However, these high-performance materials typically feature complex chemical structures and involve complicated synthesis steps, leading to high costs.…”