Does Assembly control film forming kinetics for large-area solar cells?

The film-forming kinetics for large-area devices remains unclear for organic solar cells. Here, the authors propose assembly-controlled kinetics with the assembly determined by molecular configuration and tuned via external effects, contributing to the screening of device fabrication conditions.

How to measure photovoltaic performance of small-area solar cells?

Photovoltaic performance of small-area devices were measured in a N 2 -filled glovebox. Newport Thermal Oriel 91159 A solar simulator was used for J-V curves measurement under AM 1.5 G, and the light intensity was calibrated with Newport Oriel PN 91150 V Si-based solar cell. Typical cells have device areas of ~4 mm 2.

Are bulk-heterojunction structured small-area organic solar cells effective?

Nature Communications 14, Article number: 6312 (2023) Cite this article Bulk-heterojunction structured small-area organic solar cells are approaching 20% power conversion efficiency, but the blurred film-forming kinetics in the fabrication of large-area devices causes significant PCE loss and restrains the potential of commercialization.

What are the advantages of thin-film solar cells?

Compared with traditional crystalline silicon solar cells, thin-film PSCs have the advantages of high open-circuit voltage (>1 V), low temperature and low energy consumption (<150 °C), and are suitable for flexible substrate materials, which can take both efficiency and cost into consideration.

Is UV-vis a good tool for film forming?

First of all, the in-situ UV-vis spectrum is an excellent tool for monitoring the kinetics of the film-forming process, so long as one could extract similar characteristic peaks from collected spectrums.

Which nanoparticle is used as a film forming nanoparticle?

Here, we employ poly (2- (2-methoxyethoxy)ethylmethacrylate) (PMEO 2 MA) nanogels (Fig. 1a) as film-forming nanoparticles. (Note that x ≫ y for the structure in Fig. 1a.)