کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
78021 | 49312 | 2014 | 6 صفحه PDF | دانلود رایگان |
• Non-halogenated solution for OPV processing.
• Large area processing.
• Higher fill factor and device efficiency by solvent formulation.
• Slower drying rate and improved formation of the right nano-morphology.
• By adding a higher boiling solvent a specific phase separation can be achieved.
The transfer from lab scale to industrial application is one of the challenges for organic photovoltaics. For this, non halogenated formulations are a decisive need for the upscaling process, as are roll-to-toll (R2R) compatible methods. Devices processed with o-xylene using slot-die coating as a sheet-to-sheet technique show a reduced efficiency on a larger scale compared to lab scale solar cells. By using a mixture of high and low volatile solvents which selectively dissolve one component, the film homogeneity and the efficiency is dramatically improved. The slot-die coated active layers for solar cells processed from non-halogenated solvents show device efficiencies above 3% on flexible substrates.
Journal: Solar Energy Materials and Solar Cells - Volume 128, September 2014, Pages 441–446