Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

First 2D, non-silicon computer developed

psu.edu

Post reply on HN
Print view View original

21–30 of 32 posts

Re: First 2D, non-silicon computer developed

#21

Post by close04 »

mjmas wrote: post #14
DavidSJ wrote: post #6

Earlier quoted context omitted.

Some attempt to visually represent molybdenum disulfide and tungsten diselenide with the keys of a QWERTY keyboard.

Which if it was done properly would have WSe2 and MoS2 rather than seemingly random keys

It shows just the symbols of the elements (W, Se, Mo) and the number 2, not the compounds. The "W", "S", "M", and "2" characters are in the correct place on a QWERTY keyboard, and they appended the necessary additional characters to complete the symbols as needed, even if the "e" in Se and "o" in Mo aren't in the correct spot on the layout.

Re: First 2D, non-silicon computer developed

#26

Post by kxndnddn »

Valgrim wrote: post #25

Molybdenum and tungsten both have melting point much higher than silicon, Maybe these circuits could be a good candidate for Venus rovers?

I don't see how that would be relevant since the melting temperature of Silicon is already _significantly_ higher than temperatures on Venus can reach outside of reentry

Re: First 2D, non-silicon computer developed

#28

Post by m-watson »

NegativeK wrote: post #12
numpad0 wrote: post #10

> molybdenum disulfide for n-type transistors and tungsten diselenide for p-type transistors Isn't this rather unusual?

Yes? But it’s been in research for a decade or two, based on a quick search. It’s confusing to me because moly d is a very common lubricant, even for home uses.

Something that is nice with MoS2 and the others are transition metal dichalcogenides and have some beneficial physical properties like a natural electronic bandgap, unlike silicon.
Post reply on HN