31. J.Z. Li^, X.T. Sun^, C.Y. Xu^, X.Y. Zhang, Y.Y. Pan, M. Ye, Z.G. Song, R. Quhe, Y.Y. Wang, H. Zhang, Y. Guo, J.B. Yang, F. Pan*, Jing Lu*, "Electrical contacts in monolayer blue phosphorene devices", Nano Res. 2018, 11, 1834–1849