Defect mitigation of thin-film hybrid perovskite and direct writing on a curved surface
US10431393B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2018 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Feb 9, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for aerosol-jet printing a layered perovskite structure by applying a PEDOT:PSS layer to a substrate; applying a layer of lead iodide (PbI2) to the PEDOT:PSS layer; and applying an aerosol mist of methylammonium iodide (CH3NH3I) atop the PbI2 layer with an aerosol-jet nozzle to form a CH3NH3PbI3 perovskite film layer. The substrate may be an ITO glass substrate, and the PEDOT:PSS layer may be applied by a process selected from spin-coating, inkjet-printing, slot-die-coating, aerosol-jet printing, physical vapor deposition, chemical vapor deposition, and electrochemical deposition. The PbI2 layer may be applied by a process selected from spin-coating, aerosol-jet printing, inkjet-printing, slot-die-coating, physical vapor deposition, chemical vapor deposition, and electrochemical deposition, and the PbI2 for application to the PEDOT:PSS layer may be in a solution of DMF, DMSO, γ-butyrolactone, or a combination thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.