Ren, M., S. Cao, J. Zhao, B. Zou, and R. Zeng. “Advances and Challenges in Two-Dimensional Organic–Inorganic Hybrid Perovskites Toward High-Performance Light-Emitting Diodes”. Nano-Micro Letters, vol. 13, Aug. 2021, p. 163, doi:10.1007/s40820-021-00685-5.