15 citations · 26 across the 9 of their papers we have counts for
11 papers
Structures of iron and cobalt bimetallic clusters for optimized chemical vapor deposition growth of single-walled carbon nanotubes
Qingmei Hu, Daniel Hedman, Ya Feng +17
We investigate iron-cobalt (Fe-Co) alloys as a representative high-performance catalyst system for SWCNT growth in a systematic manner by combining chemical vapor deposition (CVD)…
Robust chirality memory in carbon nanotubes growing under modulated and evolving environments
K. Otsuka, R. Fujiwara, S. Maruyama
Controlling the chirality and yield of carbon nanotubes is essential for their diverse applications from macroscopic composites to nanoelectronics. Floating-catalyst chemical vapor…
Predicting the Thermal Conductivity Collapse in SWCNT Bundles: The Interplay of Symmetry Breaking and Scattering Revealed by Machine-Learning-Driven Quantum Transport
Feng Tao, Xiaoliang Zhang, Dawei Tang +2
We combine machine learning (ML)-based neuroevolution potentials (NEP) with anharmonic lattice dynamics and the Boltzmann transport equation (ALD-BTE) to achieve a quantitative and…
Analysis of Fe and Co binary catalysts in chemical vapor deposition growth of single-walled carbon nanotubes
Qingmei Hu, Ya Feng, Wanyu Dai +17
Metal catalysts play a pivotal role in the growth of single-walled carbon nanotubes (SWCNTs), with binary metallic catalysts emerging as an efficient SWCNT synthesis strategy. Amon…
Metallic NbS2 one-dimensional van der Waals heterostructures
Wanyu Dai, Yongjia Zheng, Akihito Kumamoto +12
This study presents the experimental realization of metallic NbS2-based one-dimensional van der Waals heterostructures applying a modified NaCl-assisted chemical vapor deposition a…
Preferred Synthesis of Armchair Transition Metal Dichalcogenide Nanotubes
Abid, Luneng Zhao, Ju Huang +25
In this work, we present the synthesis of transition-metal dichalcogenide (TMDC) nanotubes with a preferred chiral angle. SnS2, MoS2, and WS2 are formed with high yield and structu…
Catalyst-mediated etching of carbon nanotubes exhibiting electronic-structure insensitivity and reciprocal kinetics with growth
K. Otsuka, S. Maruyama
The selective etching of carbon nanotubes has been widely explored as a post-synthetic route for enriching semiconducting species. As nanoelectronic applications increasingly deman…
Machine-Learned Bond-Order Potential for Exploring the Configuration Space of Carbon
Ikuma Kohata, Kaoru Hisama, Keigo Otsuka +1
Construction of transferable machine-learning interatomic potentials with a minimal number of parameters is important for their general applicability. Here, we present a machine-le…
Chirality-Dependent Kinetics of Single-Walled Carbon Nanotubes from Machine-Learning Force Fields
Sida Sun, Shigeo Maruyama, Yan Li
The origin of the chirality of single-walled carbon nanotubes (SWCNTs) has been a long-standing dispute. Molecular dynamics (MD) simulations driven by machine-learning force fields…
Low-Temperature Synthesis of Weakly Confined Carbyne inside Single-Walled Carbon Nanotubes
Bo-Wen Zhang, Xi-Yang Qiu, Yicheng Ma +16
Carbyne, a one-dimensional (1D) carbon allotrope with alternating triple and single bonds, has the highest known mechanical strength but is unstable to bending, limiting synthesis…
Janus MoSSe nanotubes on one-dimensional SWCNT-BNNT van der Waals heterostructures
Chunxia Yang, Qingyun Lin, Yuta Sato +10
2D Janus TMDC layers with broken mirror symmetry exhibit giant Rashba splitting and unique excitonic behavior. For their 1D counterparts, the Janus nanotubes possess curvature, whi…