Nanowire Waveguides and Ultraviolet Lasers Based on Small Organic Molecules


  • This work was supported by the National Natural Science Foundation of China (Nos. 50221201, 90301010, 20373077, 20733006, 50573084), the National Research Fund for Fundamental Key Projects (No. 973(2006CB806200)), and the Chinese Academy of Sciences. Prof. Lei Jiang, Dr. Jinjie Xu and Dr. Fengqin Hu are gratefully acknowledged for their helpful measurements and discussions. Supporting Information is available online from Wiley InterScience or from the author.


original image

Single crystalline nanowires of 2,4,5-triphenylimidazole, a small organic functional compound, are prepared by adsorbent-assisted physical vapor deposition. As-prepared nanowires are shown to propagate multimode UV light and serve as single wire active optical waveguides and optically driven ultraviolet lasers (see figure).