Currentvoltage and capacitancevoltage characteristics of metallic polymer/InSe(:Er) Schottky contacts
An investigation of metallic polypyrrole polymer (MPP)/n-InSe(:Er) (by an anodization process) Schottky barrier diodes (SBDs) fabricated on a cleaved n-type InSe(:Er) substrate, which is a layered semiconductor, has been made. The metallic polypyrrole film provides a good rectifying contact to the n-InSe(:Er) semiconductor. The currentvoltage (IV) and capacitancevoltage (CV) characteristics of the diode have been determined at room temperature. The diode shows nonideal IV behavior with an ideality factor greater than one. In addition, the IV characteristics of the (MPP)/n-InSe(:Er) device shows an improvement with an increased ?b0 and a decreased ideality factor after the polymer melt processing step. The reverse bias C?2V characteristics of the diode shows a non-linear behavior.
polymer schottky contacts layered crystals