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Photoresponse in a Strain-Induced Graphene Wrinkle Superlattice.
The Journal of Physical Chemistry Letters ( IF 4.8 ) Pub Date : 2020-06-08 , DOI: 10.1021/acs.jpclett.0c01535 Ruo-Xuan Sun , Qin-Qin Guo , Hao-Wei Guo , Xiao-Qing Yan , Zhi-Bo Liu 1 , Jian-Guo Tian 1
The Journal of Physical Chemistry Letters ( IF 4.8 ) Pub Date : 2020-06-08 , DOI: 10.1021/acs.jpclett.0c01535 Ruo-Xuan Sun , Qin-Qin Guo , Hao-Wei Guo , Xiao-Qing Yan , Zhi-Bo Liu 1 , Jian-Guo Tian 1
Affiliation
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Applied strain introduces significant changes in the carbon–carbon bond of graphene and thereby forms electronic superlattices. The electron/phonon coupling and existence of pseudogauge fields within these superlattices render unique electronic and magnetism properties. However, the interfacial interactions between strained and pristine graphene have rarely been studied. Herein, we report a prominent increase in photocurrent at the interface between pristine graphene and the strain-induced superlattice (i.e., the graphene wrinkle). The photocurrent distribution indicates a large increase in the bending lattice of graphene. These results demonstrate that the photocurrent enhancement is due to the difference in the Seebeck coefficient between pristine graphene and deformed superlattices, resulting in a significant increase in the photothermoelectric effect at the interface.
中文翻译：
应变诱导石墨烯皱纹超晶格中的光响应。
施加的应变会导致石墨烯的碳-碳键发生重大变化，从而形成电子超晶格。这些超晶格内的电子/声子耦合以及伪规范场的存在赋予了其独特的电子和磁性特性。然而，很少研究过应变和原始石墨烯之间的界面相互作用。本文中，我们报道了原始石墨烯与应变诱导的超晶格（即石墨烯皱纹）之间的界面处的光电流显着增加。光电流分布表明石墨烯的弯曲晶格大大增加。这些结果表明，光电流增强是由于原始石墨烯和变形超晶格之间的塞贝克系数不同，
更新日期：2020-07-02
中文翻译：
应变诱导石墨烯皱纹超晶格中的光响应。
施加的应变会导致石墨烯的碳-碳键发生重大变化，从而形成电子超晶格。这些超晶格内的电子/声子耦合以及伪规范场的存在赋予了其独特的电子和磁性特性。然而，很少研究过应变和原始石墨烯之间的界面相互作用。本文中，我们报道了原始石墨烯与应变诱导的超晶格（即石墨烯皱纹）之间的界面处的光电流显着增加。光电流分布表明石墨烯的弯曲晶格大大增加。这些结果表明，光电流增强是由于原始石墨烯和变形超晶格之间的塞贝克系数不同，
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