Self-assembled Monolayer Enables HTL-free Organic Solar Cells with 18% Efficiency and Improved Operational Stability

Yuanbao Lin, Yuliar Firdaus, Furkan Halis Isikgor, Mohamad Insan Nugraha, Emre Yengel, George T Harrison, Rawad Hallani, Abdulrahman El Labban, Hendrik Faber, Chun Ma, Xiaopeng Zheng, Anand Selvin Subbiah, Calvyn Travis Howells, Osman Bakr, Iain McCulloch, Stefaan De Wolf, Leonidas Tsetseris, Thomas D. Anthopoulos