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Interplay of Adsorbate每Adsorbate and Adsorbate每Substrate Interactions in Self-Assembled Molecular Surface Nanostructures

Joachim Schnadt1,2 (), Wei Xu1,3, Ronnie T. Vang1, Jan Knudsen1, Zheshen Li4, Erik Lægsgaard1, and Flemming Besenbacher1
 
1 Interdisciplinary Nanoscience Center, iNANO, and Department of Physics and Astronomy, Aarhus University, Building 1521, Ny Munkegade, 8000 Aarhus C, Denmark
2 Division of Synchrotron Radiation Research, Department of Physics, Lund University, Box 118, 221 00 Lund, Sweden
3 Shanghai Key Laboratory for Metallic Functional Materials, Key Laboratory for Advanced Civil Engineering Materials (Ministry of Education), College of Materials Science and Engineering, Tongji University, 1239 Si Ping Road, Shanghai 200092, China
4 Institute for Storage Ring Facilities, Aarhus University, Building 1525, Ny Munkegade, 8000 Aarhus C, Denmark

DOI 10.1007/s12274-010-0005-9

Nano Res (2010) 3: 459每471

Address correspondence to joachim.schnadt@sljus.lu.se

On Ag(110), 2,6-naphthalenedicarboxylic acid (NDCA) molecules self-assemble to form extended one-dimensional (1-D) assemblies, which cross the step edges and have lengths of several hundred nanometers. On Cu(110) and Ag(111), in contrast, step-crossing is not observed.

    

Configuration-Sensitive Molecular Sensing on Doped Graphene Sheets

John Russell and Petr Kr芍l ()
 
Department of Chemistry, University of Illinois at Chicago, Chicago, IL 60607, USA

DOI 10.1007/s12274-010-0007-7

Nano Res (2010) 3: 472每480

Address correspondence to pkral@uic.edu

The (M)-enantiomer of hexanitrostilbene docks in an electrostatic nest formed on a graphene sheet with specific boron and nitrogen substitution doping (top). The molecule does not bind well to the same nest on the bottom of the graphene sheet, which matches the opposite enantiomer. The presence of the docked molecule and its chirality can be recognized once the system is vibrated at different normal frequencies that become selectively modified by the docking.

    

Biosynthesis of Biocompatible Cadmium Telluride Quantum Dots Using Yeast Cells

Haifeng Bao, Na Hao, Yunxia Yang, and Dongyuan Zhao ()
 
Department of Chemical Engineering, Monash University, Clayton, VIC3800, Australia

DOI 10.1007/s12274-010-0008-6

Nano Res (2010) 3: 481每489

Address correspondence to dongyuan.zhao@eng.monash.edu.au

A simple and efficient biosynthesis method has been developed to prepare easily harvested, highly fluorescent and protein-capped cadmium telluride (CdTe) quantum dots (QDs) using yeast cells. The biosynthesized CdTe QDs show excellent biocompatibility, and the in situ bio-imaging of yeast cells is easily achieved.

    

Holed Nanostructures Formed by Aluminum Droplets on a GaAs Substrate

Alvason Zhenhua Li (), Zhiming M. Wang (), Jiang Wu, and Gregory J. Salamo


Institute of Nanoscale Science and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, USA

DOI 10.1007/s12274-010-0009-5

Nano Res (2010)3:490每495

Address correspondence to Alvason Zhenhua Li, alvali@uark.edu; Zhiming M. Wang, zmwang@uark.edu

Peculiar outer rings with concentric inner holed rings have been formed by aluminum droplet epitaxy, and a mathematically simple empirical equation established in order to examine the edge profiles of the outer rings.

    

An Effective Method to Prepare Polymer/Nanocrystal Composites with Tunable Emission over the Whole Visible Light Range

Haotong Wei1, Haizhu Sun1,2, Hao Zhang1, Cong Gao1, and Bai Yang1 ()
 
1 State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
2 College of Chemistry, Northeast Normal University, Changchun 130024, China

DOI 10.1007/s12274-010-0010-z

Nano Res (2010) 3: 496每505

Address correspondence to byangchem@jlu.edu.cn

Polymer/nanocrystal (NCs) composites with emission over the whole visible range (400每800 nm) have been obtained by changing the size and amount of the NCs with the aim of realizing the controllable regulation of the emitting color. A pure white-light emitting material can be prepared using NCs with emission wavelength of 559 nm and the mechanism of the white-light emission process is discussed.

    

A Comparative Study of the Effect of Gold Seed Particle Preparation Method on Nanowire Growth

Maria E. Messing1 (), Karla Hillerich1, Jessica Bolinsson1, Kristian Storm1, Jonas Johansson1, Kimberly A. Dick1,2, and Knut Deppert1
 
1 Solid State Physics, Lund University, Box 118, S-221 00 Lund, Sweden
2 Polymer & Materials Chemistry, Lund University, Box 124, S-221 00 Lund, Sweden

DOI 10.1007/s12274-010-0011-y

Nano Res (2010) 3: 506每519

Address correspondence to maria.messing@ftf.lth.se

Gold seed particles provide the most highly controlled nanowire growth. We show that the use of different generation and deposition methods for the gold seed particles affects nanowire growth to some extent. The time before the nanowires start to grow varies depending on the fabrication method of the seed particles.

    

Biomimetic Corrugated Silicon Nanocone Arrays for Self-Cleaning Antireflection Coatings

Yandong Wang1, Nan Lu1 (), Hongbo Xu1, Gang Shi1, Miaojun Xu1, Xiaowen Lin2, Haibo Li1, Wentao Wang1, Dianpeng Qi1, Yanqing Lu2, and Lifeng Chi1,3 ()
 
1 State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
2 National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China
3 Physikalisches Institut and Center for Nanotechnology (CeNTech), Westfälische Wilhelms-Universität, D-48149 M邦nster, Germany

DOI 10.1007/s12274-010-0012-x

Nano Res (2010) 3: 520每527

Address correspondence to Nan Lu, luenan@jlu.edu.cn; Lifeng Chi, chi@uni-muenster.de

Corrugated silicon nanocone arrays with strong antireflection and superhydrophobic properties have been fabricated. The effective thickness of the transition layer is enlarged by the compound silicon pillars, which can avoid strict requirements such as sharp conical shape and high aspect ratio.

    

Direct Comparison of Catalyst-Free and Catalyst-Induced GaN Nanowires

Caroline Ch豕ze1, (), Lutz Geelhaar1,, Oliver Brandt1, Walter M. Weber2,, Henning Riechert1,, Steffen M邦nch3, Ralph Rothemund3, Stephan Reitzenstein3, Alfred Forchel3, Thomas Kehagias4, Philomela Komninou4, George P. Dimitrakopulos4, and Theodoros Karakostas4
 
1 Paul-Drude-Institut f邦r Festkörperelektronik, 5-7 Hausvogteiplatz, Berlin 10117, Germany
2 NaMLab gGmbH, Dresden 01187, Germany
3 Technische Physik, Universität W邦rzburg, Am Hubland, W邦rzburg 97074, Germany
4 Physics Department, Aristotle University, Thessaloniki 54124, Greece
 Former address: Qimonda, Munich 81730, Germany

DOI 10.1007/s12274-010-0013-9

Nano Res (2010) 3: 528每536

Address correspondence to caroline.cheze@pdi-berlin.de

GaN nanowires can be grown by molecular beam epitaxy either catalyst-free or catalyst-induced by means of Ni seeds. Under identical growth conditions, both types of GaN nanowires are of wurtzite structure elongated in the Ga-polar direction and are constricted by planes. However, the catalyst-induced nanowires contain many more basal-plane stacking faults and their photoluminescence is weaker. These differences can be explained as effects of the catalyst seeds.

    

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