TRIPHENYLAMINE DERIVATIVES AND ORGANIC PHOTOVOLTAIC CELL COMPRISING THE DERIVATIVES

摘要

PURPOSE: A triphenylamine derivative is provided to have a low band gap with a broad light absorption region and to show superior hole mobility and a proper molecular level, thereby having high efficiency when the derivative is used in a photoactive layer for an organic solar cell. CONSTITUTION: A triphenylamine derivative is denoted by chemical formula I. A method for preparing the triphenylamine derivative comprises the step of making a reaction using bis(triphenylphosphine)palladium(II)dichloride (PdCl_2(PPh_3)_2) according to reaction formula I. An organic solar cell contains the triphenylamine derivative in a photoactive layer. The photoactive layer further contains fullerene derivatives.