Chemistry Department, Columbia University, New York, New York 10027, USA.
Nano Lett. 2010 Feb 10;10(2):363-5. doi: 10.1021/nl904263b.
To celebrate the tenth anniversary of Nano Letters, this short commentary discusses a scientific issue of current interest, increased electron-electron interactions in nanostructures. The two major factors of reduced dimensionality and low screening are analyzed. Carbon nanotubes and graphene are molecular in many of their properties and show strong electron-electron interactions. In specific circumstances, excited-state decay by exciton generation rather than phonon generation can be efficient in carbon nanotubes.
为庆祝《纳诺快报》创刊十周年，本期短评讨论了当前一个热门科学问题，即纳米结构中电子-电子相互作用的增强。文中分析了降低维度和低屏蔽这两个主要因素。在许多性质方面，碳纳米管和石墨烯都是分子性质的，并表现出很强的电子-电子相互作用。在特定情况下，通过激子产生而不是声子产生来实现激发态衰减，在碳纳米管中可以是有效的。
