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Effects of Nanostructured Back Reflectors on the External Quantum Efficiency in Thin Film Solar Cells

Chingmei Hsu1, George F. Burkhard2, Michael D. McGehee1, and Yi Cui1 ()


1 Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, USA
2 Department of Applied Physics, Stanford University, Stanford, California 94305, USA

DOI 10.1007/s12274-010-0064-y

Nano Res. 2011, 4(2): 153每158

Address correspondence to yicui@stanford.edu

Nanostructured back reflectors can manipulate photocurrent generation in thin film solar cells.

    

Valence Band Splitting in Wurtzite InP Nanowires Observed by Photoluminescence and Photoluminescence Excitation Spectroscopy

Gerben L. Tuin1,† (), Magnus T. Borgström1, Johanna Trägårdh1,‡, Martin Ek2, L. Reine Wallenberg2, Lars Samuelson1, and Mats-Erik Pistol1 ()


1 Solid State Physics/Nanometer Structure Consortium, Box 118, Lund University, S-221 00 Lund, Sweden
2 Polymer & Materials Chemistry/nCHREM, Lund University, S-22100 Lund, Sweden
Work performed while on leave from: Kavli Institute of Nanoscience, Delft University of Technology, P. O. Box 5046, 2600 GA Delft
Present address: H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol, BS8 1TL United Kingdom

DOI 10.1007/s12274-010-0065-x

Nano Res. 2011, 4(2): 159每163

Address correspondence to Mats-Erik Pistol, mats-erik.pistol@ftf.lth.se; Gerben L. Tuin, GLTuin@gmail.com

We have investigated the valence band splitting in wurtzite InP by photoluminescence and photoluminescence excitation spectroscopy.

    

Precise Control of Highly Ordered Arrays of Nested Semiconductor/Metal Nanotubes

Diefeng Gu1,2 (), Helmut Baumgart1,2, Kandabara Tapily1,2, Pragya Shrestha1,2, Gon Namkoong1,2, Xianyu Ao3, and Frank M邦ller3


1
Department of Electrical Engineering, Old Dominion University, Norfolk, Virginia 23529, USA
2 The Applied Research Center, Newport News, Virginia 23606, USA
3 Max Planck Institute of Microstructure Physics, Halle, Germany

DOI 10.1007/s12274-010-0066-9

Nano Res. 2011, 4(2): 164每170

Address correspondence to dgu@odu.edu

Multilayer nested composite nanotube structures have been synthesized by atomic layer deposition (ALD) inside microporous Si templates. The uniformity of an array of ALD nanotubes over a large area is confirmed. The combination of nested nanotubes of insulating oxides, semiconducting materials, and metals can provide the genesis for various types of novel applications including photocatalysis, sensors and detectors, bioengineering and biomedical applications, and photovoltaic devices.

    

Elaborate Architecture of the Hierarchical Hen*s Eggshell

Jie Zhou1,2, Shutao Wang1, Fuqiang Nie1, Lin Feng3 (), Guangshan Zhu4, and Lei Jiang1 ()


1 Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
2 Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
3 Department of Chemistry, Tsinghua University, Beijing 100084, China
4 State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130023, China

DOI 10.1007/s12274-010-0067-8

Nano Res. 2011, 4(2): 171每179

Address correspondence to Lei Jiang, jianglei@iccas.ac.cn; Lin Feng, fl@mail.tsinghua.edu.cn

The full-scale morphologies of hen*s eggshell at different length scales are systematically investigated. Both the skeleton of calcium carbonate (CaCO3) and the pore system exhibit complex hierarchical structures. The three-level hierarchy of the pore system is highlighted and its influence on gas conduction is revealed.

    

Gold Supported on Metal Oxides for Carbon Monoxide Oxidation

Sonia A. C. Carabineiro1 (), Nina Bogdanchikova2, Miguel Avalos-Borja2,†, Alexey Pestryakov3, Pedro B. Tavares4, and Jose L. Figueiredo1


1
Laborat車rio de Cat芍lise e Materiais, Associate Laboratory LSRE/LCM, Departamento de Engenharia Qu赤mica, Faculdade de Engenharia, Universidade do Porto, 4200-465 Porto, Portugal
2 Universidad Nacional Aut車noma de M谷xico, Centro de Nanociencias y Nanotecnolog赤a, Carretera Tijuana-Ensenada, 22800, Ensenada, Baja California, M谷xico
3 Tomsk Polytechnic University, 30, Lenin Avenue, Tomsk, 634050, Russia
4 Universidade de Tr芍s-os-Montes e Alto Douro, Centro de Qu赤mica每Vila Real, Departamento de Qu赤mica, 5001-911 Vila Real, Portugal
On leave at Instituto Potosino de Investigaci車n Cient赤fica y Tecnol車gica (IPICyT), San Luis Potosi, S.L.P., M谷xico

DOI 10.1007/s12274-010-0068-7

Nano Res. 2011, 4(2): 180每193

Address correspondence to sonia.carabineiro@fe.up.pt

Au was loaded on different supports by double impregnation (DIM), liquid-phase reductive deposition (LPRD), and ultrasonication (US), and the resulting materials tested as catalysts for CO oxidation. The best results were obtained for Au/NiO prepared by DIM, most likely due to the low Au nanoparticle size obtained (~4.8 nm).

    

Self-Assembly and Ordering of C60 on the WO2/W(110) Surface

Sergey A. Krasnikov1 (), Sergey I. Bozhko1, 2, Kevin Radican1, Olaf L邦bben1, Barry E. Murphy1, Sundar-Raja Vadapoo1, Han-Chun Wu1, Mohamed Abid1, 3, Valery N. Semenov2, and Igor V. Shvets1


1
Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), School of Physics, Trinity College Dublin, Dublin 2, Ireland
2 Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Russian Federation
3 King Abdullah Institute for Nanotechnology, College of Science King Saud University, Riyadh 11451, Saudi Arabia

DOI 10.1007/s12274-010-0070-0

Nano Res. 2011, 4(2): 194每203

Address correspondence to krasniks@tcd.ie

On the WO2/W(110) surface, a C60 overlayer starts to nucleate at the substrate*s inner step edges and has a close-packed hexagonal structure. By using the WO2/W(110) surface as a preformed nanostructured template, it was shown that the ※dim§ C60 molecules follow the oxide nanorows of the substrate, occupy the grooves between them, and, as a result, are situated slightly lower than the ※bright§ C60.

    

Facile and Scalable Synthesis of a Highly Hydroxylated Water-Soluble Fullerenol as a Single Nanoparticle

Ken Kokubo1 (), Shogo Shirakawa1, Naoki Kobayashi1, Hisae Aoshima2, and Takumi Oshima1


1
Division of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
2 Vitamin C60 BioResearch Corporation, 1-3-19 Yaesu, Chuo-ku, Tokyo 103-0028, Japan

DOI 10.1007/s12274-010-0071-z

Nano Res. 2011, 4(2): 204每215

Address correspondence to kokubo@chem.eng.osaka-u.ac.jp

A water-soluble polyhydroxylated fullerene (fullerenol) with 44 hydroxyl groups and 8 secondary bound water molecules, C60(OH)44﹞8H2O, has been synthesized in a facile one step reaction from pristine C60 by hydroxylation with hydrogen peroxide in the presence of a phase-transfer catalyst, tetra-n-butylammonium hydroxide, under organic/aqueous bilayer conditions.

    

Hierarchical Manganese Oxide/Carbon Nanocomposites for Supercapacitor Electrodes

Yiting Peng1,2,∫, Zheng Chen2,∫, Jing Wen2, Qiangfeng Xiao2, Ding Weng2, Shiyu He1 (), Hongbin Geng1 (), and Yunfeng Lu2 ()


1 Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
2 Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, CA 90095, USA

These authors contributed equally.

DOI 10.1007/s12274-010-0072-y

Nano Res. 2011, 4(2): 216每225

Address correspondence to Shiyu He, syhe@21cn.com; Hongbin Geng, genghb@yahoo.com; Yunfeng Lu, luucla@ucla.edu

MnO2/carbon nanocomposites with hierarchical pore structure and controllable MnO2 loading have been synthesized using a selflimiting growth method and show high specific capacitance and excellent rate capability.

    

Nanoseparation-Inspired Manipulation of the Synthesis of CdS Nanorods

Xiaoming Sun1 (), Xiuju Ma1, Lu Bai1, Junfeng Liu1, Zheng Chang1, David G. Evans1, Xue Duan1, Jiaou Wang2, and Joseph F. Chiang3


1
State Key Laboratory of Chemical Resource Engineering, P.O. Box 98, Beijing University of Chemical Technology, Beijing 100029, China
2 Institute of High Energy Physics, Beijing 100039, China
3 Department of Chemistry and Biochemistry, SUNY-Oneonta, Oneonta, NY 13820, USA

DOI 10.1007/s12274-010-0073-x

Nano Res. 2011, 4(2): 226每232

Address correspondence to sunxm@mail.buct.edu.cn

CdS nanorods have been sorted by length using a density gradient ultracentrifuge rate separation method. The fractions containing longer rods showed relatively stronger oxygen-related surface trap emission, while the shorter ones had dominant band-edge emission. Inspired by these findings, different synthesis environments (N2, air and O2) have been employed in order to tailor the length distribution of CdS rods.

    

Inorganic Nanoribbons with Unpassivated Zigzag Edges: Half Metallicity and Edge Reconstruction

Menghao Wu1, Xiaojun Wu2, Yong Pei3, and Xiao Cheng Zeng1 ()


1 Department of Chemistry and Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
2 Department of Materials of Science and Engineering, Hefei National Laboratory for Physical Materials at Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
3 Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, Xiangtan University, Xiangtan 411105, China

DOI 10.1007/s12274-010-0074-9

Nano Res. 2011, 4(2): 233每239

Address correspondence to xczeng@phase2.unl.edu

Density functional theory calculations of inorganic nanoribbons (BN, AlN, GaN, SiC, and ZnO) with unpassivated zigzag edges indicate that the unpassivated zigzag edges can lead to spin-splitting of energy bands, and that the inorganic nanoribbons AlN and SiC with either one or two unpassivated edges can be half metallic.

    

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