22
China Just Made the World's Fastest Transistor and It Is Not Made of Silicon
(www.zmescience.com)
this post was submitted on 05 May 2025
22 points (95.8% liked)
Technology
37821 readers
95 users here now
This is the official technology community of Lemmy.ml for all news related to creation and use of technology, and to facilitate civil, meaningful discussion around it.
Ask in DM before posting product reviews or ads. All such posts otherwise are subject to removal.
Rules:
1: All Lemmy rules apply
2: Do not post low effort posts
3: NEVER post naziped*gore stuff
4: Always post article URLs or their archived version URLs as sources, NOT screenshots. Help the blind users.
5: personal rants of Big Tech CEOs like Elon Musk are unwelcome (does not include posts about their companies affecting wide range of people)
6: no advertisement posts unless verified as legitimate and non-exploitative/non-consumerist
7: crypto related posts, unless essential, are disallowed
founded 6 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
“Rather than silicon, the Peking University team built their transistor using [lab-grown] bismuth oxyselenide (Bi₂O₂Se) for the channel, and bismuth selenite oxide (Bi₂SeO₅) as the gate material.
These materials are part of a class known as two-dimensional semiconductors — atomically thin sheets with exceptional electrical properties. Bismuth oxyselenide, in particular, offers something silicon struggles with at ultra-small sizes: speed.”
But where is the catch ?
There is none. It's bismuth as usual.
Badum tss