4.6 Article

Effects of oxygen absorption on the electronic and optical properties of armchair and zigzag Silicon Carbide Nanotubes (SiCNTs)

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Biochemistry & Molecular Biology

Magnesium oxide nanotube as a promising material for detection of methamphetamine drug: theoretical study

Xiaoqing Xu et al.

Summary: The research study investigated the sensing interaction between MgO nanotubes (MgONT) and methamphetamine (MAF) and found that MgONT showed a significant sensing response towards MAF. The study also observed changes in the energy levels and bandgap values of MgONT, which increased electrical conductivity. Additionally, a short recovery time for MAF desorption from the MgONT exterior was anticipated. These findings suggest that MgONT could be a potential electronic sensor for detecting and delivering MAF in biological samples.

JOURNAL OF MOLECULAR MODELING (2022)

Article Crystallography

The Exchange-Correlation Effects on the Electronic Bands of Hybrid Armchair Single-Walled Carbon Boron Nitride Nanostructure

Yahaya Saadu Itas et al.

Summary: This study investigates the effect of exchange-correlation on the electronic properties of SWCBNNT materials. By using different parametrizations, the study identifies the reasons for the disappearance of interface states and the asymmetric distribution of the band gap, and successfully creates a band gap in SWCBNNT. Additionally, the study finds that the P-y orbital has the largest impact on the electrical properties of SWCBNNT.

CRYSTALS (2022)

Article Optics

Aluminum oxide nanotubes fabricated via laser ablation process: Application as superhydrophobic surfaces

Mohammad Jafari Eskandari et al.

Summary: Laser-induced surface structuring is a promising technique for the formation of nanostructures with various applications. This study successfully fabricated highly-crystalline Al2O3 nanotubes with superhydrophobic properties. It also investigated the wetting properties of the aluminum surface containing Al2O3 nanoparticles and nanotubes.

OPTICS AND LASER TECHNOLOGY (2022)

Article Physics, Multidisciplinary

Effects of substitution of group-V atoms for carbon or silicon atoms on optical properties of silicon carbide nanotubes*

Ying-Ying Yang et al.

Summary: The study investigates the optical properties of SiCNTs doped with different elements, showing significant differences in optical absorption, photoconductivity, dielectric function, and refractive index across different wavelength bands. The band structures of SiCNTs are found to be altered by doping elements, impacting their optical properties. Additionally, energy formation calculations suggest that SiCNTs are more stable when group-V elements replace Si atom, with the exception of N atom.

CHINESE PHYSICS B (2021)

Article Optics

Electronic and optical properties of armchair silicon carbide nanotubes from first principles

Changiz Vatankhah et al.

Summary: The electronic band gap and optical spectra of armchair silicon carbide nanotubes were studied using DFT and NEGF methods, with SiCNTs (11, 11) found to have the largest band gap. The refractive index of SiCNTs (9, 9) peaked at energies below 2.5 eV, with optical absorption occurring in the 2-5 eV range for z polarization. Additionally, SiCNTs with larger diameters exhibited smaller first optical band gaps.
Article Materials Science, Multidisciplinary

Structural and electronic properties of zigzag single wall (8,0), (9,0), and (10,0) silicon carbide nanotubes

A. T. Mulatu et al.

Summary: Using first principles density functional theory calculations, the electronic and geometric structures of three different types of zigzag single wall silicon carbide nanotubes (SiC SWNT) of chiralities (8,0), (9,0), and (10,0) have been studied. These SiC SWNTs exhibit binding energies per atom close to bulk SiC counterpart, energy gaps up to 2.54 eV, and offer opportunities for opto-electronic applications in a wider range of the electromagnetic spectrum. Additionally, sandwiching the SiC SWNTs between boron, nitrogen, gallium-nitride, and zinc-oxide can result in improved binding energies.

MATERIALIA (2021)

Article Chemistry, Multidisciplinary

Tuning the Dielectric and Microwaves Absorption Properties of N-Doped Carbon Nanotubes by Boron Insertion

Qingya Sun et al.

Summary: Regulating the surface electronic structure of N-doped carbon nanotubes by boron doping improves their microwave absorption performance, with an efficient absorption bandwidth of 4.9 GHz. Appropriate loss mechanisms contribute significantly to the microwave absorption of B,N-CNTs.

NANOMATERIALS (2021)

Article Chemistry, Physical

New stable two dimensional silicon carbide nanosheets

Qun Wei et al.

Summary: New two-dimensional silicon carbide nanostructures have been predicted using ab initio density-functional theory calculations, showing stability and potential for fabrication in labs. They exhibit unique properties such as a tiny direct band gap and tunable gap values. These structures may have potential applications in future nanomechanics and electronics.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

Article Materials Science, Multidisciplinary

Theoretical studies on the optical properties of group-III elements doped SiCNTs

Pei Gong et al.

Summary: The influence of group III elements doping on the optical properties of silicon carbide nanotubes was studied using first principles calculation. It was found that the hole concentration of XC-SiCNTs is less than that of XSi-SiCNTs, leading to longer minority carrier lifetime in XC-SiCNTs. Additionally, the photoconductivity of both XSi-SiCNTs and XC-SiCNTs increases with the increase of photo-generated carriers, reaching a maximum at 700-800 THz.

OPTICAL MATERIALS (2021)

Article Crystallography

Synthesis of Thermally Stable h-BN-CNT Hetero-Structures via Microwave Heating of Ethylene under Nickel, Iron, and Silver Catalysts

Yahaya Saadu Itas et al.

Summary: The study synthesized carbon nanotubes from neem tree material, coated them with hexagonal boron nitride, and treated them with three different transition metal nanoparticles. It found that the h-BN/CNT composite with silver nanoparticles showed higher thermal stability. DFT calculations and analysis revealed a bandgap energy of 3.4 eV for the synthesized h-BN-CNT heterostructure, indicating potential for manipulating excitons in CNTs and developing new electronic devices.

CRYSTALS (2021)

Article Engineering, Multidisciplinary

Buckling analysis of Silicon carbide nanotubes (SiCNTs) with surface effect and nonlocal elasticity using the method of HDQ

Kadir Mercan et al.

COMPOSITES PART B-ENGINEERING (2017)

Article Chemistry, Multidisciplinary

Predicting Two-Dimensional Silicon Carbide Mono layers

Zhiming Shi et al.

ACS NANO (2015)

Article Polymer Science

Optical density as a probe of carbon nanotubes dispersion in polymers

Anthony Combessis et al.

JOURNAL OF APPLIED POLYMER SCIENCE (2013)

Article Nanoscience & Nanotechnology

Structural and electronic properties of SiC nanotubes filled with Cu nanowires: A first-principles study

Yun-Lei Shi et al.

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES (2013)

Review Chemistry, Multidisciplinary

Silicon Carbide Nanotubes: From Finite Single-Walled to Infinite Multi-Walled

K. Adhikari et al.

JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE (2012)

Article Chemistry, Multidisciplinary

Electronic properties of a zinc oxide nanotube under uniaxial tensile strain: a density functional theory study

Shin-Pon Ju et al.

JOURNAL OF NANOPARTICLE RESEARCH (2011)

Article Chemistry, Physical

Definitive Band Gaps for Single-Wall Carbon Nanotubes

Yuki Matsuda et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2010)

Article Chemistry, Physical

Silicon Carbide Nanotubes As Potential Gas Sensors for CO and HCN Detection

R. Q. Wu et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2008)

Article Materials Science, Multidisciplinary

Electronic properties of single-walled silicon nanotubes compared to carbon nanotubes

XB Yang et al.

PHYSICAL REVIEW B (2005)