Chemically derived, ultrasmooth graphene nanoribbon semiconductors

被引：4128

作者：

Li, Xiaolin ^{[1
,2
]}

Wang, Xinran ^{[1
,2
]}

Zhang, Li ^{[1
,2
]}

Lee, Sangwon ^{[1
,2
]}

Dai, Hongjie ^{[1
,2
]}

机构：

[1] Stanford Univ, Dept Chem, Stanford, CA 94305 USA

[2] Stanford Univ, Adv Mat Lab, Stanford, CA 94305 USA

来源：

SCIENCE | 2008年 / 319卷 / 5867期

关键词：

D O I：

10.1126/science.1150878

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We developed a chemical route to produce graphene nanoribbons ( GNR) with width below 10 nanometers, as well as single ribbons with varying widths along their lengths or containing lattice- defined graphene junctions for potential molecular electronics. The GNRs were solution-phase - derived, stably suspended in solvents with noncovalent polymer functionalization, and exhibited ultrasmooth edges with possibly well- defined zigzag or armchair- edge structures. Electrical transport experiments showed that, unlike single- walled carbon nanotubes, all of the sub - 10- nanometer GNRs produced were semiconductors and afforded graphene field effect transistors with on- off ratios of about 10(7) at room temperature.

引用

页码：1229 / 1232

页数：4

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