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Technical Insight

Magazine Feature
This article was originally featured in the edition:
Volume 30 Issue 5

Producing high-quality hexagonal BN

News

The growth of high-quality hexagonal BN benefits from a sweet spot for nitrogen pressure that’s well beyond one atmosphere but far lower than that used to produce diamond.

BY BOHDAN SADOVYI, PETRO SADOVYI, SYLWESTER POROWSKI AND IZABELLA GRZEGORY FROM THE INSTITUTE OF HIGH PRESSURE PHYSICS POLISH ACADEMY OF SCIENCES, AND ANDRII NIKOLENKO FROM THE INSTITUTE OF SEMICONDUCTOR PHYSICS NATIONAL ACADEMY OF SCIENCES OF UKRAINE

Since the late 1990s, nitrides have grown in stature within the compound semiconductor community. They shot to prominence as the foundation for efficient LEDs that are now lighting our homes, offices and communities. That’s not the end of story, though, but rather the beginning. As well as a revolutionary light source, in the form of both the LED and the laser, nitride devices are playing an ever-increasing role in the power electronics and RF industries.

During the decades that have witnessed an increasing uptake of nitride devices, a miniaturisation of all semiconductor technologies has proceeded, in some cases down to the atomic scale. The discoveries of graphene, topological insulators and other novel materials have opened a whole new area, namely two-dimensional electronics. This new frontier has spurred the rediscovery of boron nitride (BN), a member of the family of III-N compounds that has much promise for modern electronics.