Organic thin film transistor based on Schottle cock type phthalocyanine molecules

摘要

Surface Morphology of active material in organic electronics is an important factor which determines the performance of device. Here we have grown the Schottle cock type phthalocyanine: p-type SnPc and n-type SnOPc organic molecules at different substrate temperatures. The surface morphologies of Schottle cock type phthalocyanineare different from that in planer phthalocyanine molecules. The grain size of p-type SnPc and n-type SnOPc molecules increases with the growth temperature and at particular temperature the surface morphology consist the grains larger than 200 nm. Field effect transistor based on SnOPc organic molecules show the charge carrier mobility and threshold voltage are 1.3×10~(-4) cm~2/Vs and ～20 V respectively.