Volume 5

Issue 05,2012

(8 articles)

Karla Hillerich1 (), Kimberly A. Dick1,2, Maria E. Messing1, Knut Deppert1, and Jonas Johansson1 ()

Two growth regimes are observed for the growth of Cu-seeded InP nanowires: At higher Ⅴ/Ⅲ ratios the nanowires grow via a solid particle, whilst at lower Ⅴ/Ⅲ ratios growth via solid and via liquid particles occurs simultaneously. The state of the particle is believed to change dynamically between the two states depending on the momentary composition of the particle.
2012, 5(5): 297–306

Marina Y. Timmermans1 (), David Estrada2, Albert G. Nasibulin1 (), Joshua D. Wood2,3, Ashkan Behnam2, Dong-ming Sun4, Yutaka Ohno4, Joseph W. Lyding2,3, Abdou Hassanien5,6, Eric Pop2,3, and Esko I. Kauppinen1 ()

The role of the carbon nanotube (CNT) network morphology in the transport properties of CNT thin film transistors is presented. The CNT network morphology is reproducibly altered by using four different CNT deposition methods, applied directly after CNT synthesis by the aerosol chemical vapor deposition (CVD) method without additional process steps. A novel approach to prepare high-performance partially aligned CNT networks is shown.
2012, 5(5): 307–319

Wei Chen1, Lingling Li2, Qing Peng2, and Yadong Li2 ()

We have demonstrated that polyol synthesis route, which is a popular and effective way of synthesizing noble metal nanocrystals, is also a powerful method for the size-controlled synthesis of Cu2O nanostructures. The resulting Cu2O nanospheres are ideal solid precursors for the production of CuxS and CuO with retention of the spherical shape, via suitable chemical conversion.
2012, 5(5): 320–326

Shaohua Shen1,2 (), Coleman X. Kronawitter2, Jiangang Jiang1, Samuel S. Mao2, and Liejin Guo1 ()

The highly correlative relationship between photoluminescence intensity and photoelectrochemical performance, depending on dopant concentration, suggests that dopants promote charge transfer and hence the photoelectrochemical water-splitting performance of hematite (α-Fe2O3) nanorod films with the surface tuned by W6+ doping.
2012, 5(5): 327–336

Zheng Li1, Haiyan Qin2, Dorel Guzun3, Mourad Benamara3, Gregory Salamo3, and Xiaogang Peng2 ()

Uniform thickness and colloidal-stable CdS quantum disks have been reproducibly prepared using cadmium acetate, elemental sulfur, fatty acids and octadecene as the starting materials without any size/shape sorting. The thickness was varied between 1.2 and 2.2 nm, i.e., 4.5, 5.5, 6.5 and 7.5 monolayers of CdS unit along the thickness direction.
2012, 5(5): 337–351

Yi Cui1, Junfeng Gao2, Li Jin1, Jijun Zhao2, Dali Tan1, Qiang Fu1(), and Xinhe Bao1()

A Si–C exchange mechanism has been shown to facilitate the penetration of Si atoms through a monolayer graphene lattice and form a two-dimensional Si layer between the graphene overlayer and the metal substrate.
2012, 5(5): 352–360

Shenglong Xu1,2,3, Jiawei Dong2, Lijia Pan1, Xifeng Que2, Youdou Zheng1, Yi Shi1(), and Xinran Wang1 ()

Molecular dynamics simulations show that ammonia can efficiently reduce and n-dope graphene oxide.
2012, 5(5): 361–368

Zhiyi Lu, Qiu Yang, Wei Zhu, Zheng Chang, Junfeng Liu, Xiaoming Sun (*), David G. Evans, and Xue Duan

Ternary ordered hierarchical Co3O4@Ni–Co–O nanosheet–nanorod arrays show excellent electrochemical performance as a supercapacitor electrode. At a current density of 5 mA/cm2, the electrodes have both high mass loading per area (12 mg/cm2) and high efficiency of 2098 F/g, giving specific capacitances per area as high as ~25 F/cm2.
2012, 5(5): 369–378