Doping superlattices grown in channeled GaAs substrates by molecular beam epitaxy through a built-in shadow mask

Abstract
Micron width doping superlattices or n-i-p-i structures with grown-in interdigital highly selective contacts are grown successfully in a channeled GaAs substrate by molecular beam epitaxy (MBE) through a built-in shadow mask. Excellent diode characteristics and efficient lateral injection electroluminescence demonstrate the high quality of the masked MBE growth in the channeled substrate.