Author/Authors :
Zhu، نويسنده , , X.Z and Gao، نويسنده , , Kirill C.H. and Xu، نويسنده , , M.F. and Gu، نويسنده , , W. and Shi، نويسنده , , X.B. and Lei، نويسنده , , Y.L. and Wang، نويسنده , , Z.K. and Liao، نويسنده , , L.S.، نويسنده ,
Abstract :
An InCl3 dipole layer is inserted into a copper phthalocyanine (CuPc) and fullerene (C60) based organic photovoltaic cell (OPV) to modify the indium-tin-oxide (ITO) anode surface. The work function of the ITO is improved from 4.63 eV to 5.47 eV. In addition, a 30% enhancement in absorption coefficient is achieved due to the strong interaction between CuPc and InCl3 molecules, which induces a configuration change of the CuPc stacks from perpendicular to parallel along the ITO substrate. Therefore, the power conversion efficiency of the OPV devices has a 30% improvement because of the improved work function of the ITO anode and the enhanced absorption coefficient of the devices.
Keywords :
Dipole layer , ITO work function , CuPc:C60 , Organic photovoltaic cells
