Patent ID: 10090114

Abstract:
Provided are a hole transporting material for a photovoltaic device and a photovoltaic device including the same, wherein the hole transporting material is a triphenylamine derivative into which a specific substituent is introduced. The triphenylamine derivative into which the specific substituent is introduced according to the present invention is used as a material of a hole transport layer of the photovoltaic device to exhibit improved power conversion efficiency than those of the existing materials. The triphenylamine derivative into which the specific substituent is introduced according to the present invention has high hole mobility, an appropriate energy level, thermal stability, and good solubility due to a structural characteristic, and when the triphenylamine derivative is applied as the hole transporting material of the photovoltaic device, particularly, a perovskite solar cell, or an organic solar cell, excellent power conversion efficiency and device stability are exhibited as compared to the existing hole transporting material, Spiro-OMeTAD or PEDOT:PSS mixture.