472 citations · 958 across the 22 of their papers we have counts for
22 papers
Unraveling the Excitonic Transition and Associated Dynamics in Confined Long Linear Carbon-chains with Time-Resolved Resonance Raman Scattering
Jingyi Zhu, Robin Bernhardt, Weili Cui +9
Long linear carbon-chains have been attracting intense interest arising from the remarkable properties predicted and their potential applications in future nanotechnology. Here we…
Raman Sideband Thermometry of Single Carbyne Chains
Cla Duri Tschannen, Martin Frimmer, Georgy Gordeev +6
We demonstrate Raman sideband thermometry of single carbyne chains confined in double-walled carbon nanotubes. Our results show that carbyne's record-high Raman scattering cross se…
Oxidation stability of confined linear carbon chains, carbon nanotubes, and graphene nanoribbons as 1D nanocarbons
Weili Cui, Takeshi Saito, Paola Ayala +2
Three typical one-dimensional (1D)/quasi-1D nanocarbons, linear carbon chains, carbon nanotubes, and graphene nanoribbons have been proven to grow inside single-wall carbon nanotub…
Influence of Ln elements (Ln = La, Pr, Nd, Sm) on the structure and oxygen permeability of Ca-containing dual-phase membranes
Shu Wang, Lei Shi, Mebrouka Boubeche +6
Developing good performance and low-cost oxygen permeable membranes for CO2 capture based on the oxy-fuel concept is greatly desirable but challenging. Despite tremendous efforts i…
Raman Scattering Cross Section of Confined Carbyne
Cla Duri Tschannen, Georgy Gordeev, Stephanie Reich +5
We experimentally quantify the Raman scattering from individual carbyne chains confined in double-walled carbon nanotubes. We find that the resonant differential Raman cross sectio…
Well-defined sub-nanometer graphene ribbons synthesized inside carbon nanotubes
Hans Kuzmany, Lei Shi, Miles Martinati +9
Graphene nanoribbons with sub-nanometer widths are extremely interesting for nanoscale electronics and devices as they combine the unusual transport properties of graphene with the…
High CO2-tolerance oxygen permeation dual-phase membranes Ce0.9Pr0.1O2-δ-Pr0.6Sr0.4Fe0.8Al0.2O3-δ
Lei Shi, Shu Wang, Tianni Lu +8
High stability and oxygen permeability are two prominent requirements for the oxygen transport membrane candidates used as industrialization. Herein, we report several composite me…
Effects of Al content on the oxygen permeability through dual-phase membrane 60CePrO-40PrSrFeAlO
Lei Shi, Shu Wang, Tianni Lu +7
Ceramic dual-phase oxygen transport membranes with the composition of 60wt.% Ce0.9Pr0.1O2-δ-40wt.%Pr0.6Sr0.4Fe1-xAlxO3-δ (x = 0.05, 0.1, 0.2, 0.3, 0.4, 0.6, 0.8, 1.0) (60CPO-40PSF1…
The Unusual Suppression of Superconducting Transition Temperature in Double-Doping 2H-NbSe
Dong Yan, Yishi Lin, Guohua Wang +10
2H-NbSe2 is one of the most widely researched transition metal dichalcogenide (TMD) superconductors, which undergoes charge-density wave (CDW) transition at TCDW about 33 K and sup…
High-flux dual-phase percolation membrane for oxygen separation
Shu Wang, Lei Shi, Zhiang Xie +5
A series of composites based on (100-x)wt.%Ce0.9Pr0.1O2-δ-xwt.%Pr0.6Ca0.4FeO3-δ (x = 25, 40 and 50) doped with the cheap and abundant alkaline earth metal Ca2+ at the A-site has be…
Templated direct growth of ultra-thin double-walled carbon nanotubes
Lei Shi, Jinquan Wei, Kazuhiro Yanagi +5
Double-walled carbon nanotubes (DWCNTs) combined the advantages of multi-walled (MW-) and single-walled (SW-) CNTs can be obtained by transforming the precursors (e.g. fullerene, f…
The Growth of New Extended Carbon Nanophases from Ferrocene Inside Single-Walled Carbon Nanotubes
Hans Kuzmany, Lei Shi, Jeno Kurti +4
The Raman response of new structures grown after filling SWCNTs with ferrocene and transformation at moderate high temperatures is demonstrated to be very strong, even stronger tha…
Extraction of Linear Carbon Chains Unravels the Role of the Carbon Nanotube Host
Lei Shi, Kazuhiro Yanagi, Kecheng Cao +3
Linear carbon chains (LCCs) have been shown to grow inside double-walled carbon nanotubes (DWCNTs) but isolating them from this hosting material represents one of the most challeng…
Carbon nanotube chirality determines properties of encapsulated linear carbon chain
Sebastian Heeg, Lei Shi, Lisa V. Poulikakos +2
Long linear carbon chains encapsulated inside carbon nanotubes are a very close realization of carbyne, the truly one-dimensional allotrope of carbon. Here we study individual pair…
Electronic band gaps of confined linear carbon chains ranging from polyyne to carbyne
Lei Shi, Philip Rohringer, Marius Wanko +7
Ultra long linear carbon chains of more than 6000 carbon atoms have recently been synthesized within double-walled carbon nanotubes, and they show a promising new route to one--ato…
Polyyne Electronic and Vibrational Properties under Environmental Interactions
M. Wanko, Seymur Cahangirov, Lei Shi +6
Recently, the novel system of linear carbon chains inside of double-walled carbon nanotubes has extended the length of hybridized carbon chains from 44 to thousands of atoms…
Raman and XPS analyses of pristine and annealed N-doped double-walled carbon nanotubes
Lei Shi, Markus Sauer, Oleg Domanov +3
N-doped single/multi-walled carbon nanotubes (CNTs) were studied for long time from synthesis to properties. However, the stability of N in the CNT lattice still needs further deve…
Confined linear carbon chains: A route to bulk carbyne
Lei Shi, Philip Rohringer, Kazu Suenaga +6
The extreme instability and strong chemical activity of carbyne, the infinite sp1 hybridized carbon chain, are responsible for its low possibility to survive in ambient conditions.…
Energy-gap Opening and Quenching in Graphene under Periodic External Potentials
Aihua Zhang, Zhenxiang Dai, Lei Shi +2
In this paper, we investigated the effects of periodic external potentials on properties of charge carriers in graphene using both the first-principles method based on density func…
Synthesis and spectroscopic characterization of completely isotactic polyacrylonitrile
Jun-Ting Zou, Yu-Song Wang, Wen-Min Pang +2
Completely isotactic polyacrylonitrile (i-PAN) has been synthesized successfully by an improved urea inclusion polymerization. The tacticity of prepared samples were confirmed by 1…
The Formation and Characteristics of Acrylonitrile/Urea Inclusion Compound
Jun-Ting Zou, Yu-Song Wang, Wen-Min Pang +2
The formation process and composition of the acrylonitrile/urea inclusion compounds (AN/UIC) with different aging times and AN/urea molar feed ratios are studied by differential sc…
Griffiths singularity and magnetic phase diagram of La1-xCaxCoO3
Shiming Zhou, Yuqiao Guo, Laifa He +2
Magnetic properties of LaCaCoO (0.10 0.25) are systemically studied in this work. All the samples exhibits the ferromagnetic state at low temperatu…