Atomically Flat, Large-Sized, Two-Dimensional Organic Nanocrystals (pages 990–995)
Hui Jiang, Keke K. Zhang, Jun Ye, Fengxia Wei, Peng Hu, Jun Guo, Chunyong Liang, Xiaodong Chen, Yang Zhao, L. E. McNeil, Wenping Hu and Christian Kloc
Article first published online: 22 NOV 2012 | DOI: 10.1002/smll.201202390
Large-sized, 2D single crystals of perylene are grown by both solution-cast and physical vapor transport methods. The crystals have a atomically flat parallelogram morphology and the aspect ratios of the lateral extension compared to the thickness are up to 103. The atomically flat feature leads to good interface contact, making a single-crystal field-effect transistor with higher mobility. The mobility of atomically flat crystals can be 103–104 times higher than rough crystals.