Fabrication of High Efficiency Perovskite Solar Cells
Li, Y., Cooper, J. K., Buonsanti, R., Giannini, G., Liu, Y., Toma, F. M. & Sharp, I. D. Fabrication of Planar Heterojunction Perovskite Solar Cells by Controlled Low-Pressure Vapor Annealing. J. Phys. Chem.
A new synthetic method based on low-pressure and reduced-temperature vapor annealing was developed and demonstrated to yield efficient hybrid halide perovskites with low hysteresis.
Significance & impact
Cross-section (above) and top view (below) SEM images of Cl-doped metal organic lead halide
- Demonstrated a two-step low-pressure vapor-assisted solution process for the fabrication of pinhole-free, continuous CH3NH3PbI3–xxCl layers for high efficiency thin-film photovoltaics.
- Combination of X-ray, time-resolved optical, and microscopy techniques used for comprehensive analysis.
- Integration of the this synthetic method with mesoporous architectures and interface engineering holds potential to further increase efficiency and reduce hysteresis.