Selenium/group 1b ink and methods of making and using same
US8309179B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2009 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | Mar 27, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A selenium/Group 1b ink comprising, as initial components: a selenium component comprising selenium, an organic chalcogenide component having a formula selected from RZ—Z′R′ and R2—SH, a Group 1b component and a liquid carrier; wherein Z and Z′ are each independently selected from sulfur, selenium and tellurium; wherein R is selected from H, C1-20 alkyl group, a C6-20 aryl group, a C1-20 alkylhydroxy group, an arylether group and an alkylether group; wherein R′ and R2 are selected from a C1-20 alkyl group, a C6-20 aryl group, a C1-20 alkylhydroxy group, an arylether group and an alkylether group; and wherein the selenium/Group 1b ink is a stable dispersion. Also provided are methods of preparing the selenium/Group 1b ink and of using the selenium/Group 1b ink to deposit selenium and a Group 1b material on a substrate (preferably to deposit a MaSeh material on a substrate for use in the manufacture of photovoltaic cells; wherein the mole ratio of M to selenium in the MaSeh material deposited is tailorable; wherein M is at least one of copper and silver).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.