Exciton transport in 2D Ruddlesden−Popper perovskite plays a key role for their optoelectronic performance. Here, authors significantly enhance free exciton mobilities in exfoliated thin flakes by anchoring butyl ammonium cation with polymethyl methacrylate, which also improves lattice rigidity.
- Yiyang Gong
- Shuai Yue
- Xinfeng Liu