Independent Tuning Of The Band Gap And Redox Potential Of Graphene Quantum Dots

独立调谐石墨烯量子点的带隙和氧化还原电位 注:没有中文版本,只有英文版本
下载全文
(2094 KB)
资源分 53
Abstract: The band gap and redox potential of semiconductor nanocrystals are two quantities of primary importance for their applications in energy conversion devices. Herein, we report on covalent functionalization of colloidal graphene quantum dots through a solution-chemistry approach and studies of their band gaps and redox potentials. We show that their band gaps and redox potentials can be independently controlled, the former by size and the latter by functionalization. The size and the functionalization dependence of the properties can be numerically reproduced with tight-binding calculations, which thus provides a simple theoretical tool to guide the design of graphene QDs with desired properties.
翻译后摘要: 的带隙的半导​​体纳米晶体的氧化还原电位是两个量为他们的应用程序中的能量转换装置的首要的重要性。在此,我们报告的共价功能化的的胶体石墨烯量子点,通过溶液化学的方法,其带隙及氧化还原电位的研究。我们表明,他们的带隙和氧化还原电位,可独立控制,前者的大小,而后者的功能化。可以数字复制的规模和功能化的属性的依赖紧密结合的计算,从而提供了一个简单的理论工具来指导设计具有所需性能的石墨烯量子点。
Author: Xin Yan†, Binsong Li†, Xiao Cui†, Qingshuo Wei‡, Keisuke Tajima‡, and Liang-shi Li*†
Year: 2011
Source: J. Phys. Chem. Lett.
Volume-OnPage: 2 (10), pp 1119-1124  
Publication Date: April 22, 2011
相似文献:

友情链接   |  联系我们  |  发表论文  |  论文发表  |   加入收藏   |  设为主页

   @ 2005-2014 粤ICP备09006515号-2  QQ:5032928 TEL:15918895551