Volume 7

Issue 02,2014

(12 articles)


Chia-Chi Chang1,2, Chun-Yung Chi2,3, Chun-Chung Chen2,3, Ningfeng Huang2,3, Shermin Arab2,3, Jing Qiu4, Michelle L. Povinelli2,3, P. Daniel Dapkus2,3, and Stephen B. Cronin1,2,3 ()

EBIC mapping reveals a p–n junction formed in MOCVD grown GaAs nanosheets. Low temperature photoluminescence spectroscopy and Hall effect measurements are used to determine the carrier concentration of each region in the nanosheets to be 1 × 1018 cm–3.
2014, 7(2): 163–170

Nicolas Goubet1,2, and Marie-Paule Pileni1,2 ()

Negative supracrystals have been observed in a face-centered cubic gold nanocrystal superlattice. The presence of these volumetric defects induces anisotropic diffusion of thiol molecules through the nanocrystal lattice and thus Bain deformation of the latter.
2014, 7(2): 171–179

Xiaonan Wen1, Weiqing Yang1,2, Yong Ding1, Simiao Niu1, and Zhong Lin Wang1,3 ()

This study provides the first demonstration of significant piezoresistivity in MoO3 NBs and the first illustration of a generic mechanism how this effect could be coupled with other electronic modulation measures for better device performance and broader material functionality.
2014, 7(2): 180–189

Zheng Zhang1,§, Qingliang Liao1,§, Xiaoqin Yan1, Zhong Lin Wang2,3, Wenduo Wang1, Xu Sun1, Pei Lin1, Yunhua Huang1, and Yue Zhang1,4 ()

We report a new type of functional nanogenerator which can be operated in self-powered and external-powered modes to detect vibration. When used as a vibration sensor, the nanogenerator can be improved significantly by external-powering.
2014, 7(2): 190–198

Lijiang Wang§, Kai Zhang§, Zhe Hu, Wenchao Duan, Fangyi Cheng, and Jun Chen ()

Porous CuO nanowires have been explored as the anode material of rechargeable Na-ion batteries, showing a discharge capacity of 640 mA•h•g–1 in the first cycle and 303 mA•h•g–1 after 50 cycles at 50 mA•g–1. The electrochemical conversion reactions among CuO, Cu1−xCuIxO1−x/2, Cu2O, and Cu have also been demonstrated.
2014, 7(2): 199–208

Peixu Li1, Enzheng Shi2, Yanbing Yang3, Yuanyuan Shang2, Qingyu Peng2, Shiting Wu2, Jinquan Wei4, Kunlin Wang4, Hongwei Zhu4, Quan Yuan3, Anyuan Cao2 (), and Dehai Wu1 ()

Carbon nanotube–PPy core–shell sponges are fabricated by in situ electropolymerization, and serve as high performance and compressible supercapacitor electrodes.
2014, 7(2): 209–218

Zachary Lingley1, Krishnamurthy Mahalingam2, Siyuan Lu3, Gail J. Brown2, and Anupam Madhukar1,3 ()

Simultaneous cross-sectional high resolution transmission electron microscope image of a nanocrystal quantum dot on a silicon nanopillar.
2014, 7(2): 219–227

Liubing Huang1, Siyuan Lu2, Paichun Chang1, Karan Banerjee1, Robert Hellwarth1, and Jia Grace Lu1 ()

To understand the effect of strain common in nanostructures for solar cell applications, single crystalline CdTe nanowires have been synthesized by chemical vapor deposition. They were examined by X-ray diffraction and variable temperature photoluminescence, elucidating the change in the electronic structure that arises from residual strain instead of size confinement.
2014, 7(2): 228–235

Teppei Araki1 (), Jinting Jiu2, Masaya Nogi2, Hirotaka Koga2, Shijo Nagao2, Tohru Sugahara2, and Katsuaki

Ultra-long silver nanowires (u-long AgNWs) with lengths up to 230 μm have been successfully prepared by a one-step polyol process at a low reaction temperature and a low stirring speed of 110 °C and 60 rpm, respectively. Compared to conventional AgNWs with lengths of 10 μm and indium tin oxide, ultra-long AgNW electrodes achieved a low haze of 2.2% with low sheet resistance of 49 Ω/sq. at an optical transmittance of 96%, and the electrodes also showed a low sheet resistance without post-treatment at room temperature and atmospheric pressure.
2014, 7(2): 236–245

Buyuan Guan, Tao Wang, Shangjing Zeng, Xue Wang, Dong An, Dongmei Wang, Yu Cao, Dingxuan Ma, Yunling Liu, and Qisheng Huo ()

Yolk–shell structured mesoporous zirconium titanium oxide spheres containing a Pd yolk exhibit high catalytic activity and recyclability in a one-pot two-step synthesis involving an acid catalyzed step and subsequent catalytic hydrogenation to afford benzimidazole derivatives.
2014, 7(2): 246–262