Perovskite battery ohmic contact

Is a Lewis-acid layer suitable for ohmic contact in perovskite solar cells?

We introduce a generic approach featuring a Lewis-acid layer sandwiched between dopant-free semicrystalline polymer and metal electrode in perovskite solar cells, resulting in an ideal quasi-ohmic contact even at elevated temperature up to 85 °C.

Should ohmic contact be used in perovskite electronics?

While for perovskite electronics, such as transistor, memory and detector, the built-in potential at the interfaces may not be preferred; instead, for most electronic applications, ohmic contact with bidirectional transport capability and low contact resistance is pursued to maximize the device performance without scattering loss.

Do perovskite solar cells have a robust quasi-ohmic contact?

Nat Commun. 2024; 15: 2002. The development of a robust quasi-ohmic contact with minimal resistance, good stability and cost-effectiveness is crucial for perovskite solar cells.

Can a polymer-acid-metal contact improve photo-thermal operation of perovskite solar cells?

The development of robust quasi-ohmic contact with minimal resistance, exceptional stability and cost-effectiveness is crucial for practical application of perovskite solar cells. Here, authors report a polymer-acid-metal structure as the contact and realize long photo-thermal-operational stability.

Can a perovskite layer directly contact electrodes?

Many studies have evidenced that the perovskite layer can directly contact the electrodes, showing abundant physicochemical, electronic, and photoelectric properties in charge-transporting-layer-free perovskite devices.

What are the design rules of perovskite contact for photovoltaic solar cells?

The design rules of perovskite contact for photovoltaic solar cells and typical electronics are fundamentally different. Solar cells require efficient electron and hole extraction with built-in potentials, which can be achieved by adopting ETL and HTL to construct n−i−p or p−i−n configurations.