N-type binary compound semiconductors such as InN. InAs. or In2O3 are especial because the branch-point energy or charge neutrality level lies within the conduction band. Their tendency to form a surface electron accumulation layer prevents the formation of rectifying Schottky contacts. https://www.roneverhart.com/Sound-Anchors-ADJ2-Monitor-Stands-44-Tall-Pair-p15046/