Small Methods, Год журнала: 2024, Номер unknown
Опубликована: Окт. 3, 2024
Abstract Top electrodes of organic photovoltaics (OPVs) are usually thermally evaporated in the vacuum, which is non‐continuous and time‐consuming has been bottleneck for OPV fabrication process. Printable top that free high temperature, solvents will make OPVs more attractive. Low‐melting‐point alloys (LMPAs) promising candidates printable thanks to merits matching work functions, electron conductivity, environment stability, no need post‐treatment. Here, LMPA directly deposited on by simply falling a single droplet onto substrate. The spreads form thin film with smooth interface intimately contacting electrode area can be tailored adjusting diameter or Weber number, ratio inertia surface tension. morphology mainly affected contact temperature. degree oxidation charges also influence morphology. droplet‐impacted exhibit power conversion efficiencies up 16.17%. This demonstrates potential single‐droplet impact deposition as simple method printing scalable manufacturing.
Язык: Английский