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Sodium lanthanide fluoride core每shell nanocrystals: A general perspective on epitaxial shell growth

Noah J. J. Johnson and Frank C. J. M. van Veggel ()


Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, British Columbia, Canada, V8W 3V6

DOI 10.1007/s12274-013-0333-7

Nano Research 2013, 6(7): 547每561

Address correspondence to fvv@uvic.ca

The progress in core每shell synthesis and the shell growth mechanism in NaLnF4 nanocrystals are reviewed. The advantages of core每shell structures, and their structural morphology based on different characterization techniques is highlighted with some important unanswered questions that we think need to be addressed.

    

Continuous wafer-scale graphene on cubic-SiC(001)

Alexander N. Chaika1,2 (), Olga V. Molodtsova3, Alexei A. Zakharov4, Dmitry Marchenko5, Jaime S芍nchez-Barriga5, Andrei Varykhalov5, Igor V. Shvets2, and Victor Yu. Aristov1,3


1 Institute of Solid State Physics RAS, Chernogolovka, Moscow District 142432, Russia
2 Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), School of Physics, Trinity College, Dublin 2, Ireland
3 HASYLAB at DESY, D-22607 Hamburg, Germany
4 MAX-lab, Lund University, Box 118, 22100 Lund, Sweden
5 Helmholtz-Zentrum Berlin f邦r Materialien und Energie, D-12489 Berlin, Germany

DOI 10.1007/s12274-013-0331-9

Nano Research 2013, 6(7): 562每570

Address correspondence to chaika@issp.ac.ru

Low energy electron microscopy, scanning tunneling microscopy, and angle resolved photoelectron spectroscopy studies prove the millimeter-scale continuity and uniform thickness of the graphene synthesized on cubic-SiC(001)/Si(001) wafers. The graphene overlayer on SiC(001) consists of only a few monolayers with the atomic and electronic properties of quasi-freestanding graphene.

    

Hybrid PdAg alloy每Au nanorods: Controlled growth, optical properties and electrochemical catalysis

Qiao Zhang1,2, Xia Guo1, Zhenxing Liang1,2, Jianhuang Zeng1,2, Jian Yang1,3 (), and Shijun Liao1,2 ()


1 School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
2 Key Laboratory of Fuel Cell Technology of Guangdong Province, Guangzhou 510640, China
3 Department of Chemistry, Shandong University, Jinan 250100, China

DOI 10.1007/s12274-013-0332-8

Nano Research 2013, 6(7): 571每580

Address correspondence to Jian Yang, yangjian@scut.edu.cn; Shijun Liao, chsjliao@scut.edu.cn

PdAg alloys have been controllably grown at different locations on gold nanorods, producing high-quality dumbbell-like and branched nanorods. The branched nanorods exhibit a higher electrochemical activity for ethanol oxidation, but a worse anti-poisoning performance than the dumbbell-like nanorods.

    

Graphene-based Li-ion hybrid supercapacitors with ultrahigh performance

Kai Leng, Fan Zhang, Long Zhang, Tengfei Zhang, Yingpeng Wu, Yanhong Lu, Yi Huang, and Yongsheng Chen ()


Key Laboratory of Functional Polymer Materials and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin300071, China

DOI 10.1007/s12274-013-0334-6

Nano Research 2013, 6(7): 581每592

Address correspondence to yschen99@nankai.edu.cn

An advanced graphene-based Li-ion hybrid supercapacitor system, consisting of a high specific capacity graphene-inserted Li4Ti5O12 anode and a high surface area graphene每sucrose cathode, has been successfully fabricated and shows ultrahigh performance. Moreover, the graphene每Li4Ti5O12 nanocomposite also delivers excellent reversible capacities compared with the theoretical 175 mA﹞h﹞g每1 capacity of pure Li4Ti5O12 at the same rates.

    

Nanoplasmonic colloidal suspensions for the enhance¬ment of the luminescent emission from single-walled carbon nanotubes

Mareen Glaeske and Antonio Setaro (


Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany

DOI 10.1007/s12274-013-0335-5

Nano Research 2013, 6(7): 593每601

Address correspondence to setaro@physik.fu-berlin.de

Here we introduce 羽-hybrids, a new class of hybrid nanoplasmonic colloidal systems that take advantage of the coupling between the excitons in single-walled carbon nanotubes and the plasmons in gold nanorods to overcome the low emission yield of carbon nanotubes. This simple, robust and flexible technique strongly enhances the luminescence of nanotubes, even for chiralities whose enhancement has never reported before.

    

Fabrication of large area hexagonal boron nitride thin films for bendable capacitors

Ning Guo1, Jinquan Wei1 (), Yi Jia1, Huanhuan Sun1, Yuhang Wang2, Kehan Zhao2, Xiaolan Shi2, Liuwan Zhang2, Xinming Li1, Anyuan Cao3, Hongwei Zhu1, Kunlin Wang1, and Dehai Wu1


1 Key Lab for Advanced Materials Processing Technology of Education Ministry, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
2 Department of Physics, Tsinghua University, Beijing 100084, China
3 Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China

DOI 10.1007/s12274-013-0336-4

Nano Research 2013, 6(7): 602每610

Address correspondence to jqwei@tsinghua.edu.cn

A reliable and bendable capacitor fabricated using a hexagonal boron nitride (h-BN) thin film as a dielectric shows a high specific capacitance of 6.8 米F/cm2, which is one order of magnitude higher than the calculated value.

    

Impact of nanocrystallinity segregation on the growth and morphology of nanocrystal superlattices

Yanfen Wan1,2, Herv谷 Portal豕s1,2, Nicolas Goubet1,2, Alain Mermet3, and Marie-Paule Pileni1,2 ()

 

1 Universit谷 Pierre et Marie Curie Paris 6, UMR 7070, LM2N, BP 52, 4 place Jussieu, 75005 Paris, France
2 Centre National de la Recherche Scientifique, Unit谷 Mixte de Recherche 7070, LM2N, 4 place Jussieu, 75005 Paris, France
3 Universit谷 Lyon 1, Institut Lumi豕re Mati豕re, Unit谷 Mixte de Recherche 5306 CNRS, Bât. A. Kastler, 10 rue Ada Byron, 69622 Villeurbanne, France

DOI 10.1007/s12274-013-0337-3

Nano Research 2013, 6(7): 611每618

Address correspondence to marie-paule.pileni@upmc.fr

The truncated-tetrahedral nanocrystal superlattices (left) mainly contain single domain building blocks while the supracrystalline films (right) are composed of a mixture of single domain and polycrystalline nanocrystals.

    

Electron每electron interactions in monolayer graphene quantum capacitors

Xiaolong Chen, Lin Wang, Wei Li, Yang Wang, Zefei Wu, Mingwei Zhang, Yu Han, Yuheng He, and Ning Wang ()

Department of Physics and the William Mong Institute of Nano Science and Technology, Hong Kong University of Science and Technology, Hong Kong S.A.R., China
Xiaolong Chen and Lin Wang contributed equally to this work and are co-first authors.

DOI 10.1007/s12274-013-0338-2

Nano Research 2013, 6(7): 619每626

Address correspondence to phwang@ust.hk

We investigated the electron每electron interactions in monolayer graphene quantum capacitors by performing a simultaneous analysis of compressibility as function of temperature and carrier density. By considering the temperature-dependent charge fluctuations, we also established a model to explain the round-off effect near the Dirac point.

    

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