有机纳米线异质结的制备及在纳米光子学中的应用.doc

文档介绍：有机纳米线异质结的制备及在纳米光子学中的应用
郑剑耀1,2,闫永丽1,王晓鹏1,2,赵永生1,*,姚建年1,*
1中国科学院化学研究所,北京市中关村北一街2号,100190
2中国科学院研究生院,北京市石景山区玉泉路19号甲,100049
*Email: ******@iccas., ******@iccas.
通过液相自组装和物理气相沉积的两步法,我们成功制备出了以三(8-羟基喹啉)铝为主干,1,5-二氨基蒽醌为分枝的有机发光纳米线异质结。通过激光激发异质结的主干部分,可以实现在不同分枝终端输出不同的光信号(不同的颜色);并且通过改变激发光的偏振态,可以实现对输出信号的有效调制。我们的研究结果是纳米光子学的一个重要突破,对于未来的光通讯和光子计算机的发展具有重大意义。
Fig. 2 (A) Schematic illustration of the Alq3-DAAQ NWHJ based optical routers. (B) PL microscopy image of a single NWHJ. (C) PL image of the NWHJ in B excited with a 351 nm focused laser beam. (D) PL spectra of the excited spot and the output signals from the DAAQ branches and Alq3 tip. Inset shows the variation of the CIE coordinates with the propagation length. (E) The PL decay profiles of the 515 nm Alq3 emissions.
Fig. 1 Characterization of anic heterojunctions. (A) and (B) SEM images of the Alq3-DAAQ dendritic heterostructures. (C) TEM image of a single NWHJ. Insets: SAED patterns of the Alq3 trunk and DAAQ branch. (D) PL microscopy images of the NWHJs excited with the mercury lamp.
关键词:有机发光材料;纳米线;异质结;光子学
参考文献
[1] Zheng, J. Y.; Yan, Y. L.; Wang, X. P.; Zhao, Y. S.; Yao, J. N. J. Am. Chem. Soc. 2012, in press.
[2] Yan, H.; He, R.; Johnson, J.; Law, M.; Saykally, R. J.; Yang, P. J. Am. Chem. Soc. 2003, 125, 4728.
Organic Nanowire Heterojunction: Preparation and Photonic Applications
Jian Yao Zheng1,2, Yongli Yan1, Xiaopeng Wang1,