Electronic transport properties of a single chiroptical molecular switch with graphene nanoribbons electrodes
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- 作者：Cai-Juan Xia<sup> ; sup><sup>caijuanxia@xpu.edu.cn" class="auth_mail" title="E-mail the corresponding authorsup> ; Bo-Qun Zhang ; Yao-Heng Su ; Zhe-Yan Tu ; Xiang-An Yan
- 关键词：Chiroptical molecular switch ; Electronic transport ; Negative differential resistance ; Nonequilibrium Green's function ; Graphene nanoribbons
- 刊名：Optik - International Journal for Light and Electron Optics
- 出版年：2016
- 出版时间：June 2016
- 年：2016
- 卷：127
- 期：11
- 页码：4774-4777
- 全文大小：1141 K
文摘
Based on the nonequilibrium Green's function method and density functional theory calculations, we investigate the electronic transport properties of a single chiroptical molecular switch with two zigzag graphene nanoribbon electrodes. The molecule undergoing the switch can exhibit different chirality namely cis-isomer and trans-isomer by ultraviolet or visible irradiation. Theoretical results clearly reveal that these two isomers exhibit very different current – voltage characteristics, which can realize the switching behaviors when the molecule converts between cis-isomer and trans-isomer. Furthermore, the negative differential resistance behaviors also can be observed in these two isomers, suggesting potential applications of this type of junctions in future design of functional molecular devices.