The efficiency of perovskite quantum dot solar cells based on organic cations is relatively low. Aqoma et al. develop an alkyl ammonium iodide-based ligand exchange strategy for the replacement of the long-chain oleyl ligands and phase stabilization that enables 18.1%-efficiency solar cells.
- Havid Aqoma
- Sang-Hak Lee
- Sung-Yeon Jang