The Fabrication and Characterization of Field-Effect Transistor Based on Electroluminescent Conjugated Polymers on Glass
|關鍵字:||共軛高分子;場效電晶體;conjugated polymer;field-effect transistor|
Conjugated polymers like PPV derivatives are semiconductors. In addition, they have the advantages of solution processibility and are relatively cheap to manufacture. Therefore, conjugated polymers have been popular materials widely studied by researchers in recent years. The purpose of this thesis is to fabricate the organic field effect transistor with easy processing and understand the electrical characteristics of MOS FET based on MEH-PPV, [poly(2-methoxy-5-(2’-ethylhexyloxy)- 1,4-pheny -lene-vinylene)]. By using electron beam lithography system, we fabricated the horizontal electrode on glass successfully. High current density (due to high mobility) was observed in horizontal device structure. Using horizontal structure electrodes as the source and drain, we went on to make a transistor. In our experiment, gate-insulator is critical for the performance of FET. We have demonstrated a PFET with a polyimde layer as a gate-insulator. The modulation is around 5.
|Appears in Collections:||Thesis|