Research on amorphous semiconductors and its applications

Since the current voltage characteristics of the threshold memory switch in chalcogenides have been observed by Ovshinsky at 1968, especially both n type and p type doping for hydrogenated amorphous silicon have been avaliable, as one kind of important electronic materials amorphous semiconductors in both fundamental research and application were remarkably developed over the past 30 years. Here, we shall present the dominant progress and then introduce the future problems of amorphous semiconductors.