Inorganic solution and solution process for electronic and electro-optic devices
US9502600B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2012 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Nov 15, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/50
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A solution for forming at least a portion of an active layer of an electronic or electro-optic device includes a solvent, an additive mixed with the solvent to provide a solvent-additive blend, and a solute that includes at least one of a transition metal, an alkali metal, an alkaline earth metal, Al, Ga, In, Ge, Sn, or Sb dissolved in elemental form in the solvent-additive blend. The additive is selected from the group of additives consisting of NR1R2NHCOOH, NH2N—HCONHNH2, NH2COOH.NH3, NH2NHC(═NH)NH2.H2CO3, NH2NHCSNHNH2, NH2NHCSSH and all combinations thereof. R1 and R2 are each independently selected from hydrogen, aryl, methyl, ethyl and a linear, branched or cyclic alkyl of 3-6 carbon atoms. Methods of producing the solution, a method of producing a Kesterite film on a substructure and devices made with the solutions and methods are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.