AI Business LensTHE BUSINESS OF AI, FOR PEOPLE WHO TEACH IT OR LEARN FROM IT
Phys.org — Technology · September 17, 2026 · On the brief until October 1, 2026

One material, two transistor types: 'Universal charge injector' points toward densely stacked AI chips

Materials ScienceElectrical EngineeringPhysics
THE AI ANGLE
Serving as the target application driving demand for high-density, low-power stacked hardware

Researchers have developed a universal van der Waals charge injector using tin diselenide (SnSe2) that successfully supplies charge to both n-type MoS2 and p-type WSe2 monolayer channels. By replacing conventional metal contacts with weak interatomic interfaces, the platform bypasses fabrication damage and asymmetric contact requirements, boosting p-type drive current over 1,000-fold and achieving an on/off ratio above 10^9 in n-type devices. This single-material approach enables functional 2D CMOS inverters and removes a critical interface bottleneck for future vertically stacked, high-density integrated circuits.

Summary written by AI Business Lens with an AI model from the article at techxplore.com. It is not the article, and the publisher has not reviewed it. For publishers.

THE TEACHING ANGLE
Instructors can use this work to examine how heterojunction band alignment dictates carrier transport, contrasting how type-III broken-gap band-to-band tunneling and gate-modulated barrier thinning allow one contact material to adapt to opposing channel polarities.

Read the original at techxplore.com   Generate teaching or study materials

Instructors get discussion guides, assignments, and mini-cases. Students and readers get a plain summary, class prep, and an exercise. All built from the full article. Three are free with an account. Stories stay on the brief for 14 days; after that this page keeps the link to the original.

More in Materials Science