The Effects of Hot Ion-Implantation on the Electrical Properties of Amorphous-Silicon Films Produced by Chemical-Vapor-Deposition Method

Abstract
Hot ion-implantation into amorphous silicon (a-Si) has been studied for chemical-vapor-deposited films. Conductivity of as high as 0.4 S/cm (100 times higher than the previous result) was achieved at the phosphorus atom concentration of 8×1020 cm-3, when the substrate temperature was elevated up to 450°C during the ion-implantation. Activation energy was 0.12 eV.