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In the era of Internet of Things, how to develop a smart sensor system with sustainable power supply, easy deployment and flexible use has become a difficult problem to be solved. The traditional power supply has problems such as frequent…

Signal Processing · Electrical Eng. & Systems 2024-03-13 Weixiang Wan , Wenjian Sun , Qiang Zeng , Linying Pan , Jingyu Xu , Bo Liu

Triboelectric nanogenerators (TENGs) are major drivers in on-site power generation for smart devices, enable self-powered sensors, and introduce novel catalytic processes. Here, we present the advantages of adamantane plasma layers as…

This study delves into the fundamental properties of graphene and boron nitride (BN) nanostructures, exploring their torsional energy characteristics within the framework of Teleparallel Equivalent of General Relativity (TEGR). By…

General Relativity and Quantum Cosmology · Physics 2025-04-01 F. L. Carneiro , B. C. C. Carneiro , D. L. Azevedo , S. C. Ulhoa

Graphene has vast promising applications on the nanoelectronics and spintronics because of its unique magnetic and electronic properties. Making use of an ab initio spin-polarized density functional theory, implemented by the method of…

Materials Science · Physics 2016-11-26 Zongguo Wang , Shaojing Qin , Chuilin Wang

With the growing threat of energy crisis and the increasing need to power microelectronic devices, people are seeking potential alternative energies that can replace the conventional sources such as fossil fuels. Due to its simple…

Applied Physics · Physics 2019-09-06 Na Li , Liran Ma , Xuefeng Xu , Jianbin Luo

Nitrogen doping of the carbon is an important method to improve the performance and durability of catalysts for proton exchange membrane fuel cells by platinum-nitrogen and carbon-nitrogen bonds. This study shows that p-phenyl groups and…

Obtaining a robust superconducting state in atomically precise nanographene (NG) structures by proximity to a superconductor could foster the discovery of topological superconductivity in graphene. On-surface synthesis of such NGs has been…

Since the discovery of graphene, its excellent physical properties has greatly improved the performance of many optoelectronic devices and brought important technological revolution to optical research and application. Here, we introduce…

Optics · Physics 2021-09-07 Xianyou Wang , Yunqi Yuan , Xi Xie , Yuquan zhang , Changjun Min , Xiaocong Yuan

We study theoretically a multi-frequency response of electrons in confined graphene subject to dc-ac driven fields. We explore the possibility for using graphene nanoribbons (GNRs) to generate and amplify terahertz (THz) radiations in…

Materials Science · Physics 2015-02-18 M. Rabiu , S. Y. Mensah , S. S. Abukari

Nanoporous graphene (NPG), consisting of ordered arrays of nanopores separated by graphene nanoribbons was recently realized using a bottom-up synthesis method (Science 360(2018), 199). In this work we accordingly explored the mechanical…

Mesoscale and Nanoscale Physics · Physics 2019-03-12 Bohayra Mortazavi , Mohamed E. Madjet , Masoud Shahrokhi , Said Ahzi , Xiaoying Zhuang , Timon Rabczuk

We implemented a nanoelectronic interface between graphene field effect transistors (FETs) and soluble proteins. This enables production of bioelectronic devices that combine functionalities of the biomolecular and inorganic components. The…

Mesoscale and Nanoscale Physics · Physics 2015-06-03 Ye Lu , Mitchell B. Lerner , Zhengqing John Qi , Joseph J. Mitala , Jong Hsien Lim , Bohdana M. Discher , A. T. Charlie Johnson

We investigate theoretically the electronic structure of graphene and boron nitride (BN) lateral heterostructures, which were fabricated in recent experiments. The first-principles density functional calculation demonstrates that a huge…

Mesoscale and Nanoscale Physics · Physics 2016-07-04 Dong Zhang , Maosheng Miao , Fuhua Yang , Haiqing Lin , Kai Chang

Using Density functional theory (DFT) in conjunction with a solvation model we have investigated the phenomenon of eletrode-electrolyte interaction at the electrode surface and its consequences on the electrochemical properties like the…

Materials Science · Physics 2022-04-20 Mandira Das , Subhradip Ghosh

We demonstrated doping in 2D monolayer graphene via local electrical stressing. The doping, confirmed by the resistance-voltage transfer characteristics of the graphene system, is observed to continuously tunable from N-type to P-type as…

Materials Science · Physics 2015-05-27 Tianhua Yu , Chen-Wei Liang , Changdong Kim , Bin Yu

Using density functional theory combined with a Green's function scattering approach, we examine the thermoelectric properties of hetero-nanoribbons formed from alternating lengths of graphene and boron nitride. In such structures, the…

Mesoscale and Nanoscale Physics · Physics 2015-10-06 L. A. Algharagholy , Q. Al-Galiby , H. A. Marhoon , H. Sadeghi , H. M. Abduljalil , C. J. Lambert

To understand the interaction between nitrogen dopants and native point defects in graphene, we have studied the energetic stability of N-doped graphene with vacancies and Stone-Wales (SW) defect by performing the density functional theory…

Mesoscale and Nanoscale Physics · Physics 2012-05-03 Zhufeng Hou , Xianlong Wang , Takashi Ikeda , Kiyoyuki Terakura , Masaharu Oshima , Masa-aki Kakimoto , Seizo Miyata

It was recently shown that nitrogen-doped graphene (NG) can exhibit both p- and n-type characters depending on the C-N bonding nature, which represents a significant bottleneck for the development of graphene-based electronics. Based on…

Mesoscale and Nanoscale Physics · Physics 2015-03-10 Hyo Seok Kim , Han Seul Kim , Seong Sik Kim , Yong-Hoon Kim

Graphene nanoribbons (GNRs) possess distinct symmetry-protected topological phases. We show, through first-principles calculations, that by applying an experimentally accessible transverse electric field (TEF), certain boron and nitrogen…

Mesoscale and Nanoscale Physics · Physics 2021-10-25 Fangzhou Zhao , Ting Cao , Steven G. Louie

Twisted $N$-layer graphene (TNG) moir\'e structures have recently been shown to exhibit robust superconductivity similar to twisted bilayer graphene (TBG). In particular for $N=4$ and $N=5$, the phase diagram features a superconducting…

Mesoscale and Nanoscale Physics · Physics 2023-07-18 Kryštof Kolář , Yiran Zhang , Stevan Nadj-Perge , Felix von Oppen , Cyprian Lewandowski

Graphene electrodes provide a suitable alternative to metal contacts in molecular conduction nanojunctions. Here, we propose to use graphene electrodes as a platform for effective photon assisted tunneling through molecular conduction…

Mesoscale and Nanoscale Physics · Physics 2015-06-17 Boris Fainberg