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Selective Gold Deposition on a Nanostructured Block Copolymer Film Crystallized by Epitaxy

Claudio De Rosa1 (), Finizia Auriemma1, Rocco Di Girolamo1, Rossella Aprea1, and Annette Thierry2
 
1 Dipartimento di Chimica ※P. Corradini§, Universit角 di Napoli ※Federico II§, Complesso Monte S. Angelo, Via Cintia 80126 Napoli, Italy
2 Institut Charles Sadron, Universit谷 de Strasbourg, CNRS-UPR 22, B. P. 84047, 23 rue du Loess, 67034 Strasbourg, France

DOI 10.1007/s12274-010-0075-8

Nano Res. 2011, 4(3): 241每248

Address correspondence to claudio.derosa@unina.it

An ordered nanostructure formed by epitaxial crystallization of a semicrystalline block copolymer has been used as a patterned template for the selective deposition of thermally evaporated gold nanoparticles, resulting in a long-range order in the positioning of the functional nanoparticles, guided by the order of the nanostructured matrix.

    

CdSe Quantum Dot-Sensitized Au/TiO2 Hybrid Mesoporous Films and Their Enhanced Photoelectrochemical Performance

Liping Liu1,2, Gongming Wang2, Yat Li2, Yadong Li1 (), and Jin Z. Zhang2 ()
 
1 Department of Chemistry, Tsinghua University, Beijing 100084, China
2 Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA

DOI 10.1007/s12274-010-0076-7

Nano Res. 2011, 4(3): 249每258

Address correspondence to Yadong Li, ydli@mail.tsinghua.edu.cn; Jin Z. Zhang, zhang@chemistry.ucsc.edu

A novel CdSe QD quantum dot (QD) sensitized Au/TiO2 nanocomposite has been synthesized and studied for photoelectrochemical applications. Au nanoparticles significantly enhance the photocurrent, which is tentatively attributed to increased light absorption of the CdSe QDs as a result of light scattering by Au nanoparticles.

    

Hot-Electron Effects in InAs Nanowire Josephson Junctions

Stefano Roddaro1 (), Andrea Pescaglini1, Daniele Ercolani1, Lucia Sorba1, Francesco Giazotto1 (), and Fabio Beltram1, 2
 
1 NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, P. za S. Silvestro 12, I-56127 Pisa, Italy
2 IIT@NEST, Center for Nanotechnology Innovation, P. za S. Silvestro 12, I-56127 Pisa, Italy

DOI 10.1007/s12274-010-0077-6

Nano Res. 2011, 4(3): 259每265

Address correspondence to Stefano Roddaro, s.roddaro@sns.it; Francesco Giazotto, f.giazotto@sns.it

A hybrid nanowire每superconductor system has been controlled via a mechanism of hot-electron injection. The experiment allows us to obtain new estimates of unknown thermal and electrical parameters of InAs nanostructures.

    

A Miniature Droplet Reactor Built on Nanoparticle-Derived Superhydrophobic Pedestals

Bin Su, Shutao Wang, Yanlin Song, and Lei Jiang ()
 
Beijing National Laboratory for Molecular Science (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China

DOI 10.1007/s12274-010-0078-5

Nano Res. 2011, 4(3): 266每273

Address correspondence to jianglei@iccas.ac.cn

A miniature droplet reactor has been built on nanoparticle-derived superhydrophobic pedestals, which provide a confined space and the capability to perform a series of aqueous phase chemical reactions on a small scale. Due to the low-adhesive properties of the substrate, reaction products in liquid or solid states can be collected effectively, providing a promising way to harvest valuable products prepared in limited amounts.

    

A Facile One-Step Synthesis of TiO2/Graphene Composites for Photodegradation of Methyl Orange

Haijiao Zhang1, Panpan Xu1, Guidong Du1, Zhiwen Chen1, Kokyo Oh2, Dengyu Pan1, and Zheng Jiao1 ()
 
1 Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
2 Center for Environmental Science in Saitama, 914 Kamitanadare, Kazo, Saitama, Japan

DOI 10.1007/s12274-010-0079-4

Nano Res. 2011, 4(3): 274每283

Address correspondence to zjiao@shu.edu.cn

TiO2/graphene composite photocatalysts have been prepared by a simple liquid phase deposition method using titanium tetrafluoride and electron beam (EB) irradiation-pretreated graphene as the raw materials, and their photocatalytic properties studied.

    

Vibrating Carbon Nanotubes as Water Pumps

Hu Qiu, Rong Shen, and Wanlin Guo ()
 
Institute of Nano Science, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

DOI 10.1007/s12274-010-0080-y

Nano Res. 2011, 4(3): 284每289

Address correspondence to wlguo@nuaa.edu.cn

Vibrating carbon nanotube (CNT) cantilevers are shown to be efficient nanopumps using molecular dynamics simulations.

    

Hybrid Silicon-Carbon Nanostructured Composites as Superior Anodes for Lithium Ion Batteries

Po-Chiang Chen1, Jing Xu1, Haitian Chen2, and Chongwu Zhou2 ()
 
1 Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, CA 90089, USA
2 Ming-Hsieh Department of Electrical Engineering, University of Southern California, Los Angeles, CA 90089, USA

DOI 10.1007/s12274-010-0081-x

Nano Res. 2011, 4(3): 290每296

Address correspondence to chongwuz@usc.edu

A hybrid silicon-carbon nanostructured composite with large area has been fabricated in a simple fashion using a conventional sputtering system, and when employed as the anode in lithium ion batteries gives a high specific capacity and good capacity retention.

    

Monolayer Graphene as a Saturable Absorber in a Mode-Locked Laser

Qiaoliang Bao1, Han Zhang2, Zhenhua Ni3, Yu Wang1, Lakshminarayana Polavarapu1, Zexiang Shen3, Qing-Hua Xu1, Dingyuan Tang2 (), and Kian Ping Loh1 ()
 
1 Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
2 School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
3 School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore

DOI 10.1007/s12274-010-0082-9

Nano Res. 2011, 4(3): 297每307

Address correspondence to Dingyuan Tang, edytang@ntu.edu.sg; Kian Ping Loh, chmlohkp@nus.edu.sg

The absorption of one atomic layer graphene can be saturated at quite low excitation intensity and gives a remarkably large modulation depth of 65.9%. Picosecond laser pulses (1.23 ps) can be generated using monolayer graphene as a saturable absorber. A monolayer graphene mode-locked laser shows better pulse stability and higher output energy.

    

Linear Strain-Gradient Effect on the Energy Bandgap in Bent CdS Nanowires

Qiang Fu1, Zi Yue Zhang2, Liangzhi Kou2, Peicai Wu1, Xiaobing Han1,
Xinli Zhu1, Jingyun Gao1, Jun Xu1, Qing Zhao1, Wanlin Guo2 (), and Dapeng Yu1 ()
 
1 State Key Laboratory for Mesoscopic Physics, and Electron Microscopy Laboratory, Department of Physics, Peking University, Beijing 100871, China
Institute of Nanoscience, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

DOI 10.1007/s12274-010-0085-6

Nano Res. 2011, 4(3): 308每314

Address correspondence to Dapeng Yu, yudp@pku.edu.cn; Wanlin Guo, wlguo@nuaa.edu.cn

We revealed a linear relationship between the red-shift of the near-band-edge (NBE) emission exciton energy and the strain-gradient in elastically bent CdS nanowires.

    

Catalyst-Free Growth of Nanographene Films on Various Substrates

Lianchang Zhang1, Zhiwen Shi1,2, Yi Wang1,2, Rong Yang1, Dongxia Shi1, and Guangyu Zhang1 ()
 
1 Nanoscale Physics and Device Lab, Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
2 Surface Physics Lab, Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

DOI 10.1007/s12274-010-0086-5

Nano Res. 2011, 4(3): 315每321

Address correspondence to gyzhang@aphy.iphy.ac.cn

Using a newly-developed approach, we have achieved the direct growth of a nanographene film on a 4-inch glass wafer. The transmittance and conducting properties of films deposited on glass and quartz substrates have been studied.

    

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