Goldene: A single atom layer of gold
Researchers have created “goldene,” a single-atom-thick layer of gold whose properties shift from metallic to semiconducting at this extreme scale, drawing comparisons to graphene and its long, uneven path from lab curiosity to practical material. Commenters explore potential but still speculative applications in electronics, optics, and energy storage, note the significant challenges of scaling such materials to commercial use, and reflect on how scientific advances often outpace real-world products by decades.
Overall reaction
- Mix of excitement about a new 2D material and skepticism about practical impact.
- Some commenters mock a perceived pattern of “breakthrough materials” (graphene, superconductors, batteries) not delivering on hype quickly.
- Others push back, emphasizing that this is basic science, not a product announcement, and that failure and slow progress are intrinsic to research.
Applications and commercialization
- Consensus that there are no real-world applications yet.
- The synthesis process sounds complex and not obviously scalable; several note this is a likely bottleneck, as with graphene.
- Some stress that turning such materials into engineering solutions typically takes decades and major process innovation.
Graphene comparisons
- Many references to graphene as the main analogy:
- Technically promising but commercially underwhelming so far due to scaling and process integration issues.
- Existing uses mentioned: experimental transistors, energy storage, heat spreader sheets, spintronics research, niche consumer products like heating pads.
- Discussion that early graphene hype was excessive relative to what has materialized so far.
Optical and physical properties of ultrathin gold
- Question raised whether a single-atom gold layer is optically transparent or visible.
- Thin gold films are known to be partially transparent and used in visors and windows, but those are much thicker than a monolayer.
- Commenters note the beaker photo likely shows many overlapping sheets, so the appearance doesn’t answer what a single sheet looks like.
- One commenter notes that monolayer gold behaves as a semiconductor rather than a metal, prompting speculative questions about whether other elements might also become semiconductors in single-atom layers; no clear answers in-thread.
Intercalation and chemistry
- The formation of “goldene” is tied to intercalation processes in layered ceramics, with parallels drawn to lithium-ion battery chemistry.
- Some curiosity about intercalation as a general mechanism for energy storage and material modification.
Naming, media, and meta-points
- Light debate over the choice of the name “goldene” versus more systematically Greek- or Latin-derived alternatives.
- Several comments joke about the staged, generic “sciencey” photos in the article.
- Broader meta-discussion about how funding incentives push scientists to oversell applications, contributing to cycles of hype and disappointment.