Heteroaromatic ring modified naphthalimide interlayer materials for efficient polymer solar cells

We design and synthesize four naphthalimide (NI)-based organic cathode interlayer materials (CIMs) end-capped with electron-withdrawing heteroaromatic rings, namely NTDC, NTR, NTRIC and NTTC. Compared with NTN (bis(N-dimethylaminopropyl)-4-thiophene-1,8-naphthalimide), a reported CIM,...