Abstract: The present invention relates to a novel polycyclic aromatic organic semiconductor compound having a polycyclic aromatic core, a method for preparing the same, and electronic, optical or electro-optical devices such as an organic semiconductor composition, organic semiconductor thin film, organic field effect transistor and solar cell containing the compound. The novel organic semiconductor compound according to the present invention has high crystallinity and control capability, and facilitates control of doping conditions in the manufacture of organic semiconductor element so that it can be used for diverse applications. The compound can be mass-produced at low cost and has high solubility in organic solvents so that a liquid phase process can be applied to the manufacture of semiconductor elements and the like, thus enabling the mass-production of semiconductor elements and solar cells at low cost.

Abstract: The present invention relates to a thin film solar cell having a photoactive layer interposed between two electrodes, wherein at least one of the two electrodes has an electric field emission layer including nanostructures having electric field emission effects. As the thin film solar cell of the present invention has electrodes with the above-described electric field emission layer, electrons and holes generated by the photoactive layer from light can be effectively delivered to each electrode, thereby improving the photoelectric conversion efficiency of the solar cell.

Abstract: The present invention relates to a novel polycyclic aromatic organic semiconductor compound having a polycyclic aromatic core, a method for preparing the same, and electronic, optical or electro-optical devices such as an organic semiconductor composition, organic semiconductor thin film, organic field effect transistor and solar cell containing the compound. The novel organic semiconductor compound according to the present invention has high crystallinity and control capability, and facilitates control of doping conditions in the manufacture of organic semiconductor element so that it can be used for diverse applications. The compound can be mass-produced at low cost and has high solubility in organic solvents so that a liquid phase process can be applied to the manufacture of semiconductor elements and the like, thus enabling the mass-production of semiconductor elements and solar cells at low cost.