Atomically flat, large-sized, two-dimensional organic nanocrystals

• Main Authors: Jiang, Hui, Zhang, Keke, Ye, Jun, Wei, Fengxia, Hu, Peng, Guo, Jun, Liang, Chunyong, Chen, Xiaodong, Zhao, Yang, Hu, Wenping, McNeil, L. E., Kloc, Christian
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Materials
• Online Access: https://hdl.handle.net/10356/99290; http://hdl.handle.net/10220/17380
• Institution: Nanyang Technological University

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.