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Selective deposition of silver and copper films by condensation coefficient modulation
- Source :
- Materials Horizons
- Publication Year :
- 2020
- Publisher :
- Royal Society of Chemistry (RSC), 2020.
-
Abstract
- Whilst copper and silver are the conductors of choice for myriad current and emerging applications, patterning these metals is a slow and costly process. We report the remarkable finding that an extremely thin (∼10 nm) printed layer of specific organofluorine compounds enables selective deposition of copper and silver vapour, with metal condensing only where the organofluorine layer is not. This unconventional approach is fast, inexpensive, avoids metal waste and the use of harmful chemical etchants, and leaves the metal surface uncontaminated. We have used this approach to fabricate thin films of these metals with 6 million apertures cm−2 and grids of ∼1 μm lines, through to 10 cm diameter apertures. We have also fabricated semi-transparent organic solar cells in which the top silver electrode is patterned with a dense array of 2 μm diameter apertures, which cannot be achieved by any other scalable means directly on an organic electronic device.
- Subjects :
- Materials science
Organic solar cell
chemistry.chemical_element
02 engineering and technology
01 natural sciences
Metal
0103 physical sciences
QD
General Materials Science
Electrical and Electronic Engineering
Thin film
Electrical conductor
QC
010302 applied physics
business.industry
Process Chemistry and Technology
Condensation
021001 nanoscience & nanotechnology
Copper
chemistry
Mechanics of Materials
Modulation
visual_art
visual_art.visual_art_medium
Optoelectronics
0210 nano-technology
business
Layer (electronics)
Subjects
Details
- ISSN :
- 20516355 and 20516347
- Volume :
- 7
- Database :
- OpenAIRE
- Journal :
- Materials Horizons
- Accession number :
- edsair.doi.dedup.....d4a4a366cff2cf5e1083a1d2320d4d70