Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Shifeng Qian"'
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-15 (2023)
Abstract Due to rapid socioeconomic development, antibiotic pollution and heavy metal pollution are receiving increasing amounts of attention. Both antibiotics and heavy metals in the environment are persistent and toxic, and the interactions between
Externí odkaz:
https://doaj.org/article/e3d14e106e2f4117b2ce6dff362d6b24
We propose two mechanisms to realize the second order topological insulator (SOTI) state in spinless hexagonal lattices, viz., chemical modification and anti-Kekul\'e/Kekul\'e distortion of hexagonal lattice. Correspondingly, we construct two models
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b447819f74bb5a7d1107af2cfec819f7
http://arxiv.org/abs/2108.09511
http://arxiv.org/abs/2108.09511
Publikováno v:
Physical Review B. 104
The newly realized twisted graphene systems such as twisted bilayer graphene (TBG), twisted double bilayer graphene (TDBG), and twisted trilayer graphene (TTG) have attracted widespread theoretical attention. Therefore, a simple and accurate model of
Autor:
Ning Lu, Wuying Huang, Yong Zhou, Caixia Zhang, Yuxiang Wu, Shifeng Qian, Eryin Feng, Zhengbo Qin, Jian Wang, Xian Xu, Xiaowei Sheng
Publikováno v:
Journal of Materials Chemistry C. 7:3569-3575
Two-dimensional binary MX2 (M = Ni, Pd and Pt; X = P and As) exhibiting a beautiful pentagonal ring network is discussed through first principles calculations. We predict that MX2 sheets possess narrow direct band gaps of about 0.3–0.8 eV and ultra
Based on first-principles calculations and symmetry analysis, we predict atomically thin ($1-N$ layers) 2H group-VIB TMDs $MX_2$ ($M$ = Mo, W; $X$ = S, Se, Te) are large-gap higher-order topological crystalline insulators protected by $C_3$ rotation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::568d3e3a489c5273652e0f556052360f
Autor:
Chujun, Yin, Chuanhui, Gong, Junwei, Chu, Xudong, Wang, Chaoyi, Yan, Shifeng, Qian, Yang, Wang, Gaofeng, Rao, Hongbo, Wang, Yuqing, Liu, Xianfu, Wang, Jianlu, Wang, Weida, Hu, Chaobo, Li, Jie, Xiong
Publikováno v:
Advanced materials (Deerfield Beach, Fla.). 32(25)
The ultrabroadband spectrum detection from ultraviolet (UV) to long-wavelength infrared (LWIR) is promising for diversified optoelectronic applications of imaging, sensing, and communication. However, the current LWIR-detecting devices suffer from lo
Autor:
Xianfu Wang, Junwei Chu, Jie Xiong, Chuanhui Gong, Shifeng Qian, Alei Li, Tianyou Zhai, Yang Wang, Xiang Ding, Shangchi Jiang, Chujun Yin, Xiaozong Hu, Youpin Gong, Chaobo Li, Hongbo Wang
Publikováno v:
Advanced materials (Deerfield Beach, Fla.). 32(12)
Ternary two-dimensional (2D) semiconductors with controllable wide bandgap, high ultraviolet (UV) absorption coefficient, and critical tuning freedom degree of stoichiometry variation have a great application prospect for UV detection. However, as-re
Autor:
Eryin Feng, Xiaofen Huang, Wuying Huang, Shifeng Qian, Yangmei Chen, Xiaowei Sheng, Yucheng Huang, Yong Zhou, Xiaozhen Yan
Publikováno v:
The Journal of Physical Chemistry C. 122:7959-7967
In this work, we predicted three new two-dimensional (2D) Be2C structures, namely, α-Be2C, β-Be2C, and γ-Be2C, on the basis of density functional theory (DFT) computations and the particle-swarm optimization (PSO) method. In α-Be2C, a carbon atom
Publikováno v:
Chemical Physics. 493:111-114
In the present paper, the ground state van der Waals potential of the Radon dimer is described by the Tang-Toennies potential model, which requires five essential parameters. Among them, the two dispersion coefficients C 6 and C 8 are estimated from
Publikováno v:
Chemical Physics. 491:56-60
A simple analytical formula for the entire van der Waals potential of the He-Ne dimer is derived. The short range repulsive part is essentially from the surface integral theory with the parameters calculated by a combining rule. The long range attrac