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The solid-state reaction was used to synthesize CoO2 nanostructured material. Cobalt nitrate tetrahydrate and sodium oxide (NaOH) were combined to produce CoO2 nanostructured material. The three synthesized working electrodes were each…

Materials Science · Physics 2025-02-12 Shoaib Akram , Muneeb ur Rahman , Fazli Maula , Osama Tariq Satti , Shahbaz Afzal , Fawad Ali

In this paper, a superlattice VO2/SiO2 metamaterial on a lossy substrate is designed to create a near perfect absorber with tunability across the infrared spectrum. We selected VO2 as it presents a dielectric to metal-like phase change…

Applied Physics · Physics 2020-09-04 Michael A. Mastro , Virginia D. Wheeler

Confinement of the electron gas along one of the spatial directions opens an avenue for studying fundamentals of quantum transport along the side of numerous practical electronic applications, with high-electron-mobility transistors being a…

Materials Science · Physics 2017-12-12 O. Rubel

Layered CoO$_2$ is of great interest for its promising properties but is meta-stable in its bulk form. CoO$_2$ was synthesized by converting the quasi-one-dimensional crystal structure of bulk Ca$_3$Co$_2$O$_6$ via a hydrothermal treatment.…

Materials Science · Physics 2024-08-23 Simon Hettler , Kankona Singha Roy , Raul Arenal , Leela S. Panchakarla

The two-dimensional layer of molybdenum disulfide (MoS2) has recently attracted much interest due to its direct-gap property and potential applications in optoelectronics and energy harvesting. However, the synthetic approach to obtain high…

Using first-principles simulations combined with many-body calculations, we show that two-dimensional free-standing quintuple-layer Bi2Se2Te is an inversion symmetric monolayer expected to achieve spatially indirect exciton with large…

Materials Science · Physics 2024-07-18 Yuanyuan Wang , Ying Dai , Baibiao Huang , Yee Sin Ang , Wei Wei

Two dimensional (2D) crystals have attracted strong interest as a new class of proton conducting materials that can block atoms, molecules and ions while allowing proton transport through the atomically thin basal planes. Although 2D…

Utilizing the excess energy of photoexcitation that is otherwise lost as thermal effects can improve the efficiency of next-generation light-harvesting devices. Multiple exciton generation (MEG) in semiconducting materials yields two or…

Materials Science · Physics 2022-12-06 Ashish Soni , Dushyant Kushavah , Li-Syuan Lu , Wen-Hao Chang , Suman Kalyan Pal

Holey graphyne (HGY), a novel 2D single-crystalline carbon allotrope, was synthesized most recently by Castro-Stephens coupling reaction. The natural existing uniform periodic holes in the 2D carbon-carbon network demonstrate its tremendous…

Applied Physics · Physics 2020-04-07 Yan Gao , Huanian Zhang , Hongzhe Pan , Qingfang Li , Haifeng Wang , Jijun Zhao

The band inversion in topological phase matters bring exotic physical properties such as the emergence of a topologically protected surface states. They strongly influence the surface electronic structures of the investigated materials and…

Carbons are being widely investigated as hydrogen storage material owing to their light weight, fast hydrogen adsorption kinetics and cost effectiveness. However, these materials suffer from low hydrogen storage capacity, particularly at…

Materials Science · Physics 2014-09-26 Viney Dixit , Ashish Bhatnagar , R. R. Shahi , T. P. Yadav , O. N. Srivastava

Technical carbon dioxide removal through bioenergy with carbon capture or direct air capture plays a role in virtually all climate mitigation scenarios. Both of these technologies rely on the use of chemical solvents or sorbents in order to…

Physics and Society · Physics 2024-11-15 Vincent Chanal , Samuel Humpage , Markus Millinger

Monolayer films of transition metal dichalcogenides (in particular, MoS2, MoSe2, WS2, and WSe2) can be considered as ideal systems for the studies of high-temperature electron-hole liquids. The quasi-two-dimensional nature of electrons and…

Mesoscale and Nanoscale Physics · Physics 2020-05-12 P. L. Pekh , P. V. Ratnikov , A. P. Silin

The development of safe, efficient, and reversible hydrogen storage materials is critical for advancing hydrogen-based energy technologies and achieving carbon-neutral goals. Ennea-Graphene, a new 2D carbon allotrope made of 4-, 5-, 6-, and…

The development of reversible hydrogen storage materials has become crucial for enabling carbon-neutral energy systems. Based on this, the present work investigates the hydrogen storage on the sodium-decorated P-C$_3$N (Na@P-C$_3$N), a…

Two-dimensional (2D) high-temperature ferromagnetic materials are important for spintronic application. Fortunately, a highly-air-stable PdSe$_2$ monolayer semiconductor has been made through exfoliation from the layered bulk material. It…

Mesoscale and Nanoscale Physics · Physics 2019-06-05 Shi-Hao Zhang , Bang-Gui Liu

Porous single layer molybdenum disulfide (MoS$_2$) is a promising material for applications such as DNA sequencing and water desalination. In this work, we introduce irradiation with highly charged ions (HCIs) as a new technique to…

Contemporary science is witnessing a rapid expansion of the two-dimensional (2D) materials family, each member possessing intriguing emergent properties of fundamental and practical importance. Using the particle-swarm optimization method…

Mesoscale and Nanoscale Physics · Physics 2017-09-13 Zhili Zhu , Xiaolin Cai , Chunyao Niu , Seho Yi , Zhengxiao Guo , Feng Liu , Jun-Hyung Cho , Yu Jia , Zhenyu Zhang

Direct air capture (DAC) of carbon dioxide is a critical technology for mitigating climate change, but current materials face limitations in efficiency and scalability. We discover novel DAC materials using a combined machine learning (ML)…

Materials Science · Physics 2024-10-21 Megan C. Davis , Wilton J. M. Kort-Kamp , Ivana Matanovic , Piotr Zelenay , Edward F. Holby

In this work we report results of step-by-step modeling of the oxidation of free-standing boron monolayers of different types. Results of the calculations demonstrate that the process of the oxidation is always exothermic and lead toward…

Materials Science · Physics 2020-04-22 Xue Lei , Anatoly F. Zatsepin , Danil W. Boukhvalov