Materials · July 2025

Wafer-scale 2D InSe

Two-inch wafers of an atomically thin semiconductor that beats silicon roadmaps.

Peking University grew 2-inch wafers of indium selenide, published in Science. Its transistors reached mobility of 287 cm2/V·s with a subthreshold swing near 67 mV/dec, beating the chip industry's 2037 projections.

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