Insulator-to-Metal Transition in Selenium-Hyperdoped Silicon: Observation and Origin
Insulator-to-Metal Transition in Selenium-Hyperdoped Silicon: Observation and Origin
Hyperdoping has emerged as a promising method for designing semiconductors with unique optical and electronic properties, although such properties currently lack a clear microscopic explanation. Combining computational and experimental evidence, we probe the origin of sub--band-gap optical absorption and metallicity in Se-hyperdoped Si. We show that sub--band-gap absorption arises from …