Volume 7

Issue 04,2014

(15 articles)


Hyeongwook Im1, Hyung Geun Moon2, Jeong Seok Lee1, In Young Chung2, Tae June Kang3 (*), and Yong Hyup Kim1 (*), )

Flexible thermo-electrochemical cells utilizing hierarchically porous CNT textile have been fabricated for recovery of waste low-grade heat. They are flexible enough to be wearable on the human body and to wrap around cylindrical shapes.
2014, 7(4): 443–452

Jaeho Lee1,2,§, Hyun-Jong Chung1,3,§ (*), David H. Seo1, Jaehong Lee2,4, Hyungcheol Shin2, Sunae Seo1,5, Seongjun Park1, Sungwoo Hwang1, and Kinam Kim1,6

The influence of graphene’s quantum capacitance is investigated for various graphene mobilities. The use of graphene with high mobility and low-voltage operation allows for graphene channels suitable for next generation transistors.
2014, 7(4): 453–461

Zhenjiang Li1, Jian Zhao1, Meng Zhang1, Jiyin Xia2,
and Alan Meng2 (*)

SiC nanowires with thickness-controlled SiO2 shells as well as pure SiC nanowires have been obtained by alkaline cleaning treatment in NaOH solution. Photoluminescence (PL) spectroscopy shows that the SiC nanowires sheathed with an optimum SiO2 thickness (spectrum 4) have better photoluminescence properties than either the bare SiC nanowires or SiC nanowires with thicker coatings of SiO2.
2014, 7(4): 462–472

Jessica Bolinsson1,, Martin Ek2, Johanna Trgrdh1,, Kilian Mergenthaler1, Daniel Jacobsson1,Mats-Erik Pistol1, Lars Samuelson1, and Anders Gustafsson1 (*)

Cathodoluminescence investigations show that the optical quality of GaAs-based nanowires increases with growth temperature. There is a link between emission at 1.48 eV and twin planes, preventing near-bandgap emission from the nanowires.
2014, 7(4): 473–490

Taeseup Song1, Hyungkyu Han1, Heechae Choi2, Jung Woo Lee1, Hyunjung Park1, Sangkyu Lee1, Won Il Park1,Seungchul Kim2, Li Liu3, and Ungyu Paik1 (*)

High-density TiO2 nanotubes branched on carbon nanofiber is used as an anode material for lithium ion batteries. TiO2 nanotubes branched on carbon nanofiber electrode shows the significant increase in areal capacity as well as excellent rate capability due to the low electric resistance between the current collector and branched TiO2 nanotube and high TiO2 nanotubes loading.
2014, 7(4): 491–501

Huilong Fei1,§, Zhiwei Peng1,§, Lei Li1, Yang Yang1,2, Wei Lu1, Errol L. G. Samuel1, Xiujun Fan1,and James M. Tour1,2,3 (*)

Fe2O3 nanoparticles encapsulated in graphitic shells are uniformly distributed on graphene sheets. The resulting composites show superior Li+ storage properties as anode material for Li-ion batteries.
2014, 7(4): 502–510

Jonathan C. Shaw1, Hailong Zhou1, Yu Chen2, Nathan O. Weiss2, Yuan Liu2, Yu Huang2,3, and Xiangfeng Duan1,3(*)

Using chemical vapor deposition, we have synthesized monolayer MoSe2 nanosheets directly on 300 nm SiO2/Si substrates. The MoSe2 nanosheets have size-dependent properties, including a transition from an indirect-to-direct band gap as the out-of plane dimensions are reduced to a single layer.
2014, 7(4): 511–517

Weifeng Li1, Gang Zhang1 (*), Meng Guo2, and Yong-Wei Zhang1

Using density functional theory calculations, we have investigated the mechanical properties and strain effects on the electronic structure and transport properties of molybdenum disulfide (MoS2) nanotubes.
2014, 7(4): 518–527

Stephan Werner (*), Stefan Rehbein, Peter Guttmann, and Gerd Schneider

The paper shows the first practical realization of high resolution on-chip stacked zone plates and describes their diffraction behaviour. The three-dimensional (3-D) structured X-ray optics have the poten-tial to combine high spatial resolving power with high diffraction efficiencies in the soft and hard X-ray photon energy regime.
2014, 7(4): 528–535

Chunhui Li (*), Ruixue Wei, Yanmin Xu, Ailing Sun, and
Liuhe Wei (*)

Anisotropic Fe3O4 nanosheets enclosed by {111} facets have been prepared via a two-step microemulsion solvothermal method. The presence and number of twin faces are of crucial important in the formation of hexagonal and triangular nanosheets. The material showed excellent catalytic activity in the synthesis of quinoxaline in many solvents.
2014, 7(4): 536–543