Perovskite solar cells (PSCs) have attracted significant attention in recent years due to their high power conversion efficiency (>27%), solution-processability and low fabrication cost. However, the long-term stability remains one of the key challenges hindering commercialization.
While much progress has been made in improving the NiOₓ/SAMs–perovskite interface, the perovskite/C₆₀ (or PC₆₁BM) interface still suffers from poor photothermal stability and non-radiative recombination losses. Conventional interfacial passivation strategies, such as using organic Lewis acids/bases, inorganic alkali metal fluorides or functional organic small molecules. These have shown potential to reduce recombination and improve efficiency. These materials often compromise device durability under prolonged operation.
Tin Oxide (SnO₂) - A Promising Interface Passivation Material
Tin oxide (SnO₂) is a wide-bandgap semiconductor known for its excellent chemical stability, high electron mobility, strong optical transparency, environmental friendliness, and low cost. Its intrinsic photothermal stability and favorable electronic properties make it an ideal candidate for perovskite/C₆₀ interface passivation.
Our newly developed SnO₂ nanoparticle ink formulated with butyl acetate as the solvent, enables low-temperature fabrication of large-area and high-quality passivation layers. This innovation provides an effective solution to:
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Improve the light and thermal stability of inverted perovskite solar cells and modules.
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Reduce the risk of reverse bias breakdown in device operation.
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Facilitate scalable, solution-based manufacturing processes.
Advantages of SnO₂ Nanoparticle Ink
- Excellent dispersion stability and film uniformity.
- Low-temperature processing compatible with flexible substrates.
- Enhanced interfacial contact between perovskite and electron transport layers.
- Improved photothermal durability compared to organic passivation materials.
- Environmentally safe and cost-effective for large-scale photovoltaic manufacturing.
Applications
- Inverted perovskite solar cells (p–i–n structure).
- Perovskite/organic hybrid photovoltaic devices.
- Thin-film optoelectronic devices requiring transparent and stable electron transport layers.
Related Products
- Cat. No. 945925 Stannic oxide, 99%, particle size 3 - 6 nm, 1% in n-Butyl acetate (CAS:18282-10-5)
- Cat. No. 911753 Tin(IV) oxide, 3 - 6 nm, 5% in H2O colloidal dispersion (CAS:18282-10-5)
Looking to improve the stability and scalability of your perovskite solar devices?
Olica Xu
