COMPOSITION FOR WORK FUNCTION REDUCTION OF METAL OXIDE ELECTRON COLLECTION LAYER, INVERTED ORGANIC SOLAR CELL USING SAME, AND METHOD FOR PREPARING INVERTED ORGANIC SOLAR CELL

摘要

The present invention relates to a composition for work function reduction of a metal oxide electron collection layer, an inverted organic solar cell using same, and a method for preparing the inverted organic solar cell. According to the present invention, the surface of a metal oxide electron collection layer, which is a constituent element of an inverted organic solar cell, is modified by means of a neutral polymer and thus the work function of the metal oxide is reduced and a built-in potential is increased. And charge can be easily moved and collected by means of the forming of polymer nanodots due to the neutral polymer. Therefore, the efficiency of an inverted organic solar cell using a polymer can be greatly increased.