Solution-processed inorganic copper(<scp>i</scp>) thiocyanate (CuSCN) hole transporting layers for efficient p–i–n perovskite solar cells

Abstract

CuSCN is a highly transparent, highly stable, low cost and easy to solution process HTL which outperforms PEDOT : PSS in planar heterojunction p–i–n perovskite solar cells by substantially increasing the open circuit voltage.