通过调节化学势对石墨烯低聚物电磁行为进行灵活控制。

A flexible control on electromagnetic behaviors of graphene oligomer by tuning chemical potential.

作者信息

Ren Junbo, Wang Guangqing, Qiu Weibin, Chen Houbo, Qiu Pingping, Kan Qiang, Pan Jiao-Qing

机构信息

Fujian Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen, 361021, China.

College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100086, China.

出版信息

Nanoscale Res Lett. 2018 Nov 3;13(1):349. doi: 10.1186/s11671-018-2762-4.

DOI:10.1186/s11671-018-2762-4

PMID:30392036

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6215537/

Abstract

In this work, we demonstrate that the electromagnetic properties of graphene oligomer can be drastically modified by locally modifications of the chemical potentials. The chemical potential variations of different positions in graphene oligomer have different impacts on both extinction spectra and electromagnetic fields. The flexible tailoring of the localizations of the electromagnetic fields can be achieved by precisely adjusting the chemical potentials of the graphene nanodisks at corresponding positions. The proposed nanostructures in this work lead to the practical applications of graphene-based plasmonic devices such as nanosensing, light trapping and photodetection.

摘要

在这项工作中，我们证明了通过局部改变化学势可以显著改变石墨烯低聚物的电磁特性。石墨烯低聚物中不同位置的化学势变化对消光光谱和电磁场都有不同的影响。通过精确调整相应位置的石墨烯纳米盘的化学势，可以实现对电磁场局域化的灵活调控。这项工作中提出的纳米结构推动了基于石墨烯的等离子体器件在纳米传感、光捕获和光电探测等方面的实际应用。