本論文主要是在合成出具有負型半導體電性的有機材料，合成過程主要是經由一照光反應後，化合物合環成為多環芳香性碳氫（polycyclic aromatic hydrocarbons, PHAs）化合物，且結構上包含了一組對稱的酸酐（anhydride）官能基；為了讓化合物有較大的溶解度，我們再將酸酐官能基反應成為長碳鏈的亞醯胺（imide）官能基。同時為了更了解更多有關此類PAHs化合物，實驗室也著手去改變結合環的數目，合成出環數較多的化合物，期待這樣的結構可以有效的成為傳電子負型有機半導體材料。合成出的化合物結構如下圖所示。 In the thesis we mainly discuss n-type electron transport organic semiconductor materials. We have synthesized a series of dianhydride-based compounds with oxidative photochemical ring closure structure, which we called “ polycyclic aromatic hydrocarbons (PAHs).” For increasing the solubility of those compounds, we transform the anhydride moieties into alkyl imide group. The following figures show the structure of the materials.Moreover, we try to increase the number of fused-rings and hopefully this kind of materials will show semiconducting properties. All of these compounds have been characterized and analyzed via thermogravimetric analyzer (TGA), differential scanning calorimeter (DSC), cyclic voltametry (CV), power X-ray diffraction (PXD), and atomic force microscopy (AFM).
