硕士生导师
个人信息Personal Information
教师英文名称:Hongbo Wang
入职时间:2022-06-29
学历:博士研究生毕业
学位:工学博士学位
办公地点:西南交通大学犀浦校区3号教学楼31608,智慧城市与交通学院
性别:男
在职信息:在岗
主要任职:智能制造与装备系主任助理
其他任职:智慧城市与交通学院本科教学秘书
毕业院校:西南交通大学
学科:机械制造及其自动化
所在单位:城市轨道交通学院(智慧城市与交通学院)
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Synergistic enhancement mechanism of high electron density and localized surface plasmons for strong light-matter interactions
影响因子:7.633
DOI码:10.1002/aelm.202300454
所属单位:西南交通大学
发表刊物:Advanced Electronic Materials
项目来源:国家自然科学基金-青年基金;四川省自然科学基金-青年基金等
摘要:2D layered semiconductor materials hold the potential to address the crucial technical challenges of poor signal uniformity and low repeatability of traditional metal plasmonic nanostructures in sensing, which hinder quantitative detection and analysis in molecular detection. However, the ultra-low light absorption efficiency and electronic state density intrinsically result in their inferior sensitivity compared with those of conventional metal plasmonic nanostructures. Therefore, the integration of the classical back-gate modulation strategy and surface plasmon resonance into 2D heterostructures is proposed. This integration aims to control the interaction between the surface sensing material of the heterostructure and target molecules from the perspective of surface electronic state density and optical absorption efficiency. The sensitivity (≈10−12 m) of as-designed MoS2/graphene/Ag heterojunction is comparable to that of advanced metal plasmonic nanostructures, and the corresponding enhancement factor (EF, 1.71 × 104) is much higher than that of most heterojunction-based and metal-semiconductor coupled devices. This study uncovers the internal mechanism of the surface plasmon effect and high electronic state density in enhancing light-matter interactions, and provides an alternative avenue for high-performance surface-enhanced devices.
合写作者:Yang Wang, Zhi-jun Zhao, Xinchuan Du, Anjun Hu, Miao Zhang, Kai Tang, Ting Zhou, Yuchen Tian
第一作者:Hongbo Wang
论文类型:SCI
通讯作者:Linmao Qian*,Xianfu Wang*
论文编号:2300454
学科门类:工学
文献类型:J
卷号:9
期号:11
页面范围:1-10
是否译文:否
发表时间:2023-09-18
收录刊物:SCI、EI
发布期刊链接:https://onlinelibrary.wiley.com/doi/10.1002/aelm.202300454