Fabrication and Electrical Properties of FePc/Si Heterojunction

Iron-phthalocyanine (FePc) thin films was prepared by thermal evaporation method on p-Si (111) substrate at room temperature. Metal-Phthalocyanines (M-Pc) are a class of p-type organic semiconductor materials, having very high thermal and chemical stability, for potential applications in solar cells, light emitting diodes, gas sensors and transistors. In this study, The conduction mechanism and electronic properties obtained from current-voltage characteristics (I-V) of FePc/p-Si heterojunction at room temperature have been investigated. The diode parameters such as zero-bias barrier height and ideality factor were determined using different method. Higher and lower electric fields are usually attributed various conduction mechanisms.The different conduction mechanism such as space charge limited conduction (SCLC), Schottky-type conduction and Poole-Frenkel conduction mechanism can be dominant in the studied