中文
相关论文

相关论文: Surface termination dependence of electronic and o…

200 篇论文

Two-dimensional transition metal carbides and nitrides (MXenes) are a perspective group of materials with a broad palette of applications. Surface terminations are a product of the MXene preparation, and post-processing can also lead to…

材料科学 · 物理学 2024-07-18 Barbora Vénosová , František Karlický

MXenes are technologically interesting 2D materials that show potential in numerous applications. The properties of the MXenes depend at large extent on the selection of elements that build the 2D MX-layer. Another key parameter for tuning…

材料科学 · 物理学 2021-09-09 Lars-Åke Näslund , Mikko-Heikki Mikkelä , Esko Kokkonen , Martin Magnuson

Semiconducting MXenes are an intriguing two-dimensional (2D) material class with promising electronic and optoelectronic properties. Here, we focused on recently prepared Hf-based MXenes, namely Hf$_3$C$_2$O$_2$ and Hf$_2$CO$_2$. Using the…

材料科学 · 物理学 2024-04-03 Nilesh Kumar , Miroslav Kolos , Sitangshu Bhattacharya , František Karlický

MXenes, a family of layered transition metal carbides and nitrides, have shown great promise for use in emerging electrochemical energy storage devices, including batteries and supercapacitors. MXene surfaces are terminated by mixed -O, -F…

材料科学 · 物理学 2018-07-05 Nuala M. Caffrey

MXenes, a family of two-dimensional transition metal carbides and nitrides, have various tunable physical and chemical properties. Their diverse prospective applications in electronics and energy storage devices have triggered great…

材料科学 · 物理学 2021-02-03 Mengying Wang , Mohammad Khazaei , Yoshiyuki Kawazoe , Yunye Liang

In this study, we investigate the effect of mixed surface terminations (F, O, OH) on the properties of M$_{2}$C MXenes (M = Sc, Ti, V). We explore how different compositions and patterns of terminal groups affect the stability and…

材料科学 · 物理学 2025-09-25 Michal Novotný , Karolína Tkáčová , František Karlický

MXenes are 2D transition metal carbides with high potential for overcoming limitations of conventional two-dimensional electronics. In this context, various MXenes have shown magnetic properties suitable for applications in spintronics, yet…

材料科学 · 物理学 2020-01-08 Shuo Li , Junjie He , Petr Nachtigall , Lukáš Grajciar , Federico Brivio

Exciton dissociation plays a crucial role in the performance of optoelectronic devices based on two-dimensional (2D) transition metal dichalcogenides (TMDs). In this work, we investigate the effect of an in-plane electric field on the…

材料科学 · 物理学 2024-10-11 Tao Zhu , Chenhang Zheng , Lei Xu , Ming Yang

Density functional theory simulations with conventional (PBE) and hybrid (HSE06) functionals were performed to investigate the structural and electronic properties of MXene monolayers, \ce{Ti_{n+1}C_n} and \ce{Ti_{n+1}N_n} ($n$ = 1--9) with…

材料科学 · 物理学 2013-07-04 Yu Xie , P. R. C. Kent

Due to the absence of interlayer coupling and inversion symmetry, transition metal dichalcogenide (MX$_2$) semiconductor monolayers exhibit novel properties that are distinctly different from their bulk crystals such as direct optical band…

介观与纳米尺度物理 · 物理学 2015-06-16 Chung-Yu Wang , Guang-Yu Guo

As emerging atomically ultrathin metal compounds, MXenes show great promise for catalysts and nanoelectronics applications due to the abundant surface terminations and high metallic conductivity. However, the tendency of the interlayer…

材料科学 · 物理学 2022-10-18 Qiye Guan , Hejin Yan , Yongqing Cai

Control of surface functionalization of MXenes holds great potential, and in particular, may lead to tuning of magnetic and electronic order in the recently reported magnetic Cr2TiC2Tx. Here, vacuum annealing experiments of Cr2TiC2Tx are…

We performed high-throughput density functional theory calculations of optical matrix elements between band edges across a diverse set of non-magnetic two-dimensional monolayers with direct band gaps. Materials were ranked as potential…

材料科学 · 物理学 2025-08-15 A. F. Gómez-Bastidas , Karthik Sriram , A. C. Garcia-Castro , Oleg Rubel

MXenes are a family two-dimensional transition metal carbide and nitride materials, which often exhibit very good metallic conductivity and are thus of great interest for applications in, e.g., flexible electronics, electrocatalysis, and…

材料科学 · 物理学 2021-07-14 Mohammad Bagheri , Rina Ibragimova , Hannu-Pekka Komsa

We investigate phase-dependent electronic and excitonic phenomena in monolayer Y2TeO2 MOenes in the 1T and 2H polymorphs using first-principles theory and an effective many-body framework. Phonon spectra and elastic stability criteria…

One of the most explored MXenes is Ti3C2Tx, where Tx is designated to inherently form termination species. Among many applications, Ti3C2Tx is a promising material for energy storage, energy conversion, and CO2-capturing devices. However,…

材料科学 · 物理学 2024-12-05 Lars-Åke Näslund , Esko Kokkonen , Martin Magnuson

Monolayers of transition-metal dichalcogenides such as WSe2 have become increasingly attractive due to their potential in electrical and optical applications. Because the properties of these 2D systems are known to be affected by their…

Hybrid materials of MXenes (2D carbides and nitrides) and transition-metal oxides (TMOs) have shown great promise in electrical energy storage and 2D heterostructures have been proposed as the next-generation electrode materials to expand…

材料科学 · 物理学 2021-07-21 Lihua Xu , Tao Wu , Paul R. C. Kent , De-en Jiang

Strontium titanate SrTiO$_3$ is one of the most studied and paradigmatic transition metal oxides. Recently, a breakthrough has been achieved with the fabrication of freestanding SrTiO$_3$ ultrathin films down to the monolayer limit.…

材料科学 · 物理学 2023-03-28 Lorenzo Varrassi , Peitao Liu , Cesare Franchini

Monolayer phosphorene provides a unique two-dimensional (2D) platform to investigate the fundamental dynamics of excitons and trions (charged excitons) in reduced dimensions. However, owing to its high instability, unambiguous…

材料科学 · 物理学 2015-04-30 Jiong Yang , Renjing Xu , Jiajie Pei , Ye Win Myint , Fan Wang , Zhu Wang , Shuang Zhang , Zongfu Yu , Yuerui Lu
‹ 上一页 1 2 3 10 下一页 ›