Molecular Crystals and Liquid Crystals, Vol.655, No.1, 159-165, 2017
Fullerene based electron transporting layers for large area polymer solar cells
An efficient fullerene based electron transporting material, C-60, N, N,N-trimethyl-1-(2,3,4-tris(2-(2-methoxyethoxy)ethoxy)phenyl)dimethanaminium monoadduct iodide salt (LT-S9079), is introduced to large area flexible polymer solar cells (PSCs). The excellent conductivity and wettability of the LT-S9079 on the active layer enable the fabrication of large-area slot-die coated PSCs of conventional photovoltaic device structure. The PSCs incorporating LT-S9079 demonstrate high current densities of 8.14 mA cm(-2) and power conversion efficiencies of 1.46%.