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US 2015/0318477 A1Published application
Perovskite Material Layer Processing
AssigneeHunt Energy Enterprises, L.L.C.
InventorsMichael D. Irwin, Jerred A. Chute, Vivek V. Dhas
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Abstract
A method for processing a perovskite photoactive layer. The method comprises depositing a lead salt precursor onto a substrate to form a lead salt thin film, depositing a second salt precursor onto the lead salt thin film, annealing the substrate to form a perovskite material.
Claims30
A method for processing a perovskite photoactive layer comprising:
- depositing a lead salt precursor onto a substrate to form a lead salt thin film;
- depositing a second salt precursor onto the lead salt thin film;
- and
- annealing the substrate to form a perovskite material.
1 more element
A method for processing a perovskite photoactive layer comprising:
- depositing a PbI2 precursor onto a substrate to form a PbI2 thin film, wherein the PbI2 precursor comprises a 90:10 mole ratio of PbI2 to PbCl2 dissolved in anhydrous DMF;
- depositing a formamidinium iodide precursor onto the PbI2 thin film, wherein the formamidinium iodide precursor comprises a 25-60 mg/mL concentration of formamidinium iodide dissolved in anhydrous isopropyl alcohol;
- and
- annealing the substrate in a controlled humidity environment at a temperature greater than or equal to 50° C. and less than or equal to 300° C. to form a formamidinium lead iodide (FAPbI3) perovskite material.
1 more element
A photovoltaic device comprising:
- a perovskite material comprising formamidinium lead iodide (FAPbI3) having a cubic crystal structure.
Dependencies are inferred from the claim text.