Why goldene and not chrysene?
Why chrysene?
Goldene: A single atom layer of gold
51–60 of 128 posts
Re: Goldene: A single atom layer of gold
#52[flagged]
Why are you posting the output of chatgpt?
Re: Goldene: A single atom layer of gold
#53Earlier quoted context omitted.
Electron microscopes are capable of resolving details that small. Here's a side-on view of what they did. You can see the individual gold atoms. https://www.nature.com/articles/s44160-024-00518-4/figures/1 And here's a top down view https://www.nature.com/articles/s44160-024-00518-4/figures/2 Both of these are from the paper describing their process and results https://www.nature.com/articles/s44160-024-00518-4
That side on view is wild and I didn’t know that the resolutions of electron microscopes had gotten that good where you can make out individual atoms. Insane.
They have been that good for a while
Re: Goldene: A single atom layer of gold
#54What is the greatest thing we have been able to use graphene for so far?
How quick do you expect a material science innovation to land in commercial products? E.g. if the superior quality of material X is proven in one study today, it might take at least a decade for material X to make it into a first run of a prototype chip series — maybe — if there have been a hundred follow-up studies that showed promise as well. Then how long does it take for that prototype chip series to feel like a…
Graphene was insanely hyped close to two decades ago though. Every other month you'd hear stories of things that could be disrupted by it. That was my recollection, though could be biased and me misremembering. But it feels like a valid question, especially since it has been two decades.
Relevant section from Wikipedia https://en.m.wikipedia.org/wiki/Graphene :
> In 2004, the material was rediscovered, isolated and investigated at the University of Manchester,[13][14] by Andre Geim and Konstantin Novoselov. In 2010, Geim and Novoselov were awarded the Nobel Prize in Physics for their "groundbreaking experiments regarding the two-dimensional material graphene".[15] High-quality graphene proved to be surprisingly easy to isolate.
Graphene has become a valuable and useful nanomaterial due to its exceptionally high tensile strength, electrical conductivity, transparency, and being the thinnest two-dimensional material in the world.[4] The global market for graphene was $9 million in 2012,[16] with most of the demand from research and development in semiconductor, electronics, electric batteries,[17] and composites.
There is also a section about applications that expands on it a bit.
Re: Goldene: A single atom layer of gold
#55Why goldene and not chrysene?
Why chrysene?
Graphene isn’t called carbonene, but, via graphite, indirectly derived from the Greek word γράφειν (to write)
To be consistent, they’d derive from the Greek word for gold, which is [1] χρυσός (chrysós).
[1] or at least similar to. My greek isn’t good, and that’s an understatement.
Re: Goldene: A single atom layer of gold
#56Is single atom thick gold somewhat optically transparent?
I would suspect it is essentially invisible to the naked eye. It likely only exists in extremely specific conditions, not just like a sheet. I’m guessing it’s somewhat similar to a microscopic layer around a material that we never notice.
Thin gold layers are green, this looks red if you look at the beaker.
There are spectral data available in the original publication https://www.nature.com/articles/s44160-024-00518-4
Re: Goldene: A single atom layer of gold
#57Earlier quoted context omitted.
How quick do you expect a material science innovation to land in commercial products? E.g. if the superior quality of material X is proven in one study today, it might take at least a decade for material X to make it into a first run of a prototype chip series — maybe — if there have been a hundred follow-up studies that showed promise as well. Then how long does it take for that prototype chip series to feel like a…
Graphene was insanely hyped close to two decades ago though. Every other month you'd hear stories of things that could be disrupted by it. That was my recollection, though could be biased and me misremembering. But it feels like a valid question, especially since it has been two decades. Relevant section from Wikipedia https://en.m.wikipedia.org/wiki/Graphene : > In 2004, the material was rediscovered, isolated and i…
When I say "a decade" that was meant as an example timespan. Depending on how complicated the processes turn out you could also look at "multiple decades" or in some cases also "never".
A problem with today's science world is that the funding is competitive to a degree scientists need to "sell" their findings with practical applications — the fact they expanded the edge of human knowledge has become worthless. So our systemically incentivized-to-sell scientists do just that. And sometimes it works out and sometimes it is just far fetched bs. But because the edge of current science is so precise, so small, so ho, so cold, so fast, so low energy, etc. translating even the best of finsings into commercially scalable processes has become a major undertaking and despite unprecedented wealth on the top of the society, the ones on top have become averse to risk.
Re: Goldene: A single atom layer of gold
#58Oversimplified TLDR: They put rolled gold into a Prussian Red solution, waited a couple of months and then rinsed it in Palmolive solution? It is possible they did not obtain the Prussian Red in the good old way of cooking blood and bones with potash but ordered it from the Internet: https://www.morphisto.de/en/shop/detail/d/KIT%3A_Ätzmittel_n... On a more serious note, it is surprisingly easy to create mono- molecul…
Do you have the corrected link ?
Re: Goldene: A single atom layer of gold
#59Oversimplified TLDR: They put rolled gold into a Prussian Red solution, waited a couple of months and then rinsed it in Palmolive solution? It is possible they did not obtain the Prussian Red in the good old way of cooking blood and bones with potash but ordered it from the Internet: https://www.morphisto.de/en/shop/detail/d/KIT%3A_Ätzmittel_n... On a more serious note, it is surprisingly easy to create mono- molecul…
Do you have the corrected link ?
Fixed, thanks!
Re: Goldene: A single atom layer of gold
#60Earlier quoted context omitted.
If you can see or handle it, it's not a single atom thick.
Says you! Some of us have the skills required to handle a .0000003mm mechanical pencil. In 2B even!
Interesting, but that sounds like it's in the realm of tools, not direct handling. Either a normal sized pencil that contains that thickness of material, or a microscopic pencil that itself needs tools to be manipulated.