Photovoltaic cell coating process parameters

Are organic photovoltaic cells efficient?

Organic photovoltaic (OPV) cells have demonstrated remarkable performance in small, spin-coated areas. Nevertheless significant challenges persist in the form of large efficiency losses due to the fact that the ideal morphology cannot be preserved in the transition of small-area cells to large-scale panels.

What is the PCE of 10 cm 2 OPV cells?

The PCEs of the 10 cm 2 OPV cell-based ternary BHJs processed by spin coating and blade coating are 13.9% and 15.9%, respectively. When the active area is increased to 20 cm 2, the PCE of the blade-coated devices is 14.5%, which is significantly higher than the OPV cells based on spin-coated BHJ film (10.2%).

Does spray-coating have a low PCI value?

Although spray-coating provides the lowest TIC among the four processes, the relatively large amount of active material employed for spray-coating and lower PCE resulting from thickness variation and phase separation yield a low PCI value around 30 mW/USD. This value is only approximately twice as high as that of spin-coated OSCs (14 mW/USD).

Do blade-coated ternary OPV cells retain PCE?

When compared to spin-coated devices, blade-coated ternary OPV cells show a slight dependence on PCE and the active area. Notably, the device retains 80% of its initial PCE after 4000 h of continuous illumination.

What is the PCE active of a 50 cm 2 OPV module?

Based on the highly efficient ternary BHJ, the 50 cm 2 OPV modules with the architecture of ITO/ZnO/BHJ/MoO x /Ag are fabricated (Figure 6b ). Under 1-sun illumination, the best module exhibited a PCE active of 15.2% and a corresponding PCE module of 14.3% (Figure 6c ).

Is Pb2 FTCC-BR-btp-ec9 suitable for large-area coating?

Nevertheless, Figure 6a reflects that the blade coating OPV cells exhibit a weak dependence of active area and PCE, indicating that the PB2:FTCC-Br:BTP-eC9 active layer is quite suitable for large-area coating.