Ricciardulli, A. G., Yang, S., Kotadiya, N. B., Wetzelaer, G.-J.-A.-H., Feng, X., & Blom, P. W. M. (2019). Improved Hole Injection into Perovskite Light-Emitting Diodes Using A Black Phosphorus Interlayer. Advanced Electronic Materials, 5(2): 1800687. doi:10.1002/aelm.201800687.