Showing posts with label February 24. Show all posts
Showing posts with label February 24. Show all posts

Wednesday, February 25, 2015

Controlled 1.1–1.6 μ m luminescence in gold-free multi-stacked InAs/InP heterostructure nanowires

We report controlled 1.1–1.6 μ m luminescence in gold-free multi-stacked InAs/InP heterostructure nanowires (NWs). We realized the NWs by using an indium-particle-assisted vapor–liquid–solid synthesis approach. The growth temperature, as low as 320 °C, enables the formation of an atomically abrupt InP/InAs interface by supressing the diffusion and weakening the reservoir effect in the indium droplet. The low growth temperature also enables us to grow multi-stacked InAs/InP NWs in the axial direction without any growth on the NW side face. The high controllability of the growth technology ensures that the luminescence can be tailored by the thickness of InAs segment in InP NWs and cover the 1.3–1.5 μ m telecommunication window range. By using the nanoscale-spatial-resolution technology combing cathodoluminescence with scanning electron microscopy, we directly correlated the site of different-thickness InAs segments with its luminescence property in a single NW and demo...

Guoqiang Zhang, Kouta Tateno, Muhammad Danang Birowosuto, Masaya Notomi, Tetsuomi Sogawa and Hideki Gotoh

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Growth process of nanosized aluminum thin films by pulsed laser deposition for fluorescence enhancement

Pulsed laser deposition was used to deposit aluminum thin films of various thicknesses ( t Al ) ranging from 5 to 40 nm and to investigate their growth process when they are deposited onto SiO 2 and Y 2 O 3 . Atomic force microscopy and x-ray reflectivity measurements show that the structure of the Al films are related to the wettability properties of the underlaying layer. Onto SiO 2 , ultra-smooth layers of aluminum are obtained, due to a perfect wetting of SiO 2 by Al. In contrast when deposited onto Y 2 O 3 , percolated Al layers are observed with apparent pore size decreasing from 200 to 82 nm as ##IMG## [http://ift.tt/1Dafemx] {${{t}_{{\rm Al}}}$} is increased from 5 to 40 nm, respectively. This particular morphology is related to partial dewetting of Al on Y 2 O 3. These two different growth mechanisms of alu...

N Abdellaoui, A Pillonnet, J Berndt, C Boulmer-Leborgne, E Kovacevic, B Moine, J Penuelas and A Pereira

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Corrigendum: Monte Carlo simulations of nanoscale focused neon ion beam sputtering of copper: elucidating resolution limits and sub-surface damage (2014 Nanotechnology 25 [http://ift.tt/1GtkqWe] 485704 )

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R Timilsina, S Tan, R Livengood and P D Rack

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Tuesday, February 24, 2015

Low-Temperature Processed and Carbon-Based ZnO/CH3NH3PbI3/C Planar Heterojunction Perovskite Solar Cells

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The Journal of Physical Chemistry C

DOI: 10.1021/jp512101d




Huawei Zhou, Yantao Shi, Kai Wang, Qingshun Dong, Xiaogong Bai, Yujin Xing, Yi Du and Tingli Ma

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First-Principles Study of Redox End Members in Lithium–Sulfur Batteries

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The Journal of Physical Chemistry C

DOI: 10.1021/jp513023v




Haesun Park, Hyun Seung Koh and Donald J. Siegel

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Design of SrTiO3-Based Thermoelectrics by Tungsten Substitution

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The Journal of Physical Chemistry C

DOI: 10.1021/jp510743h




A. V. Kovalevsky, S. Populoh, S. G. Patrício, P. Thiel, M. C. Ferro, D. P. Fagg, J. R. Frade and A. Weidenkaff

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Theoretical Study of the Stoichiometric and Reduced Ce-Doped TiO2 Anatase (001) Surfaces

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The Journal of Physical Chemistry C

DOI: 10.1021/jp5105483




Anderson R. Albuquerque, Albert Bruix, Julio R. Sambrano and Francesc Illas

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Unraveling the Structure of Iron(III) Oxalate Tetrahydrate and Its Reversible Li Insertion Capability

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Chemistry of Materials

DOI: 10.1021/cm5043149




Hania Ahouari, Gwenaëlle Rousse, Juan Rodríguez-Carvajal, Moulay-Tahar Sougrati, Matthieu Saubanère, Matthieu Courty, Nadir Recham and Jean-Marie Tarascon

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Magnetic and Electric Hotspots with Silicon Nanodimers

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Nano Letters

DOI: 10.1021/acs.nanolett.5b00128




Reuben M. Bakker, Dmitry Permyakov, Ye Feng Yu, Dmitry Markovich, Ramón Paniagua-Domínguez, Leonard Gonzaga, Anton Samusev, Yuri Kivshar, Boris Luk’yanchuk and Arseniy I. Kuznetsov

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Insights into Planar CH3NH3PbI3 Perovskite Solar Cells Using Impedance Spectroscopy

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The Journal of Physical Chemistry C

DOI: 10.1021/jp509896u




Alexander R. Pascoe, Noel W. Duffy, Andrew D. Scully, Fuzhi Huang and Yi-Bing Cheng

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Electron Transfer of Squaraine-Derived Dyes Adsorbed on TiO2 Clusters in Dye-Sensitized Solar Cells: A Density Functional Theory Investigation

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The Journal of Physical Chemistry C

DOI: 10.1021/jp508034f




Hui-Hsu Gavin Tsai, Chun-Jui Tan and Wen-Hsin Tseng

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Li+ Solvation in Pure, Binary, and Ternary Mixtures of Organic Carbonate Electrolytes

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The Journal of Physical Chemistry C

DOI: 10.1021/jp511132c




Ioannis Skarmoutsos, Veerapandian Ponnuchamy, Valentina Vetere and Stefano Mossa

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Pure and Oxidized Ag Substrate Influence on the Phase Transformation and Semiconducting Behaviors of Layered ZnO: A First-Principles Study

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The Journal of Physical Chemistry C

DOI: 10.1021/jp512621r




Changhong Wang, Wei-Hua Wang, Feng Lu, Yahui Cheng, Liru Ren, Weichao Wang and Hui Liu

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DFT Study of the Ambipolar Character of Polymers on the Basis of s-Tetrazine and Aryl Rings

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The Journal of Physical Chemistry C

DOI: 10.1021/jp5120948




Mónica Moral, Andrés Garzón, Gregorio García, José M. Granadino-Roldán and Manuel Fernández-Gómez

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One Step Facile Synthesis of Amine-Functionalized COF-1 with Enhanced Hydrostability

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Chemistry of Materials

DOI: 10.1021/cm5032317




Yi Du, David Calabro, Bradley Wooler, Pavel Kortunov, Quanchang Li, Stephen Cundy and Kanmi Mao

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Rb+ Adsorption at the Quartz(101)–Aqueous Interface: Comparison of Resonant Anomalous X-ray Reflectivity with ab Initio Calculations

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The Journal of Physical Chemistry C

DOI: 10.1021/jp510139t




Francesco Bellucci, Sang Soo Lee, James D. Kubicki, Andrei Bandura, Zhan Zhang, David J. Wesolowski and Paul Fenter

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Enhancement of the Yield of Photoinduced Charge Separation in Zinc Porphyrin–Quantum Dot Complexes by a Bis(dithiocarbamate) Linkage

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The Journal of Physical Chemistry C

DOI: 10.1021/acs.jpcc.5b00074




Shengye Jin, Mario Tagliazucchi, Ho-Jin Son, Rachel D. Harris, Kenneth O. Aruda, David J. Weinberg, Alexander B. Nepomnyashchii, Omar K. Farha, Joseph T. Hupp and Emily A. Weiss

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Nanoengineered Surfaces for Focal Adhesion Guidance Trigger Mesenchymal Stem Cell Self-Organization and Tenogenesis

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Nano Letters

DOI: 10.1021/nl503737k




Maria Iannone, Maurizio Ventre, Lucia Formisano, Laura Casalino, Eduardo J. Patriarca and Paolo A. Netti

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Fabrication of RGD Micro/Nanopattern and Corresponding Study of Stem Cell Differentiation

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Nano Letters

DOI: 10.1021/nl5049862




Xuan Wang, Shiyu Li, Ce Yan, Peng Liu and Jiandong Ding

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Organic–Inorganic Hybrid Lead Iodide Perovskite Featuring Zero Dipole Moment Guanidinium Cations: A Theoretical Analysis

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The Journal of Physical Chemistry C

DOI: 10.1021/acs.jpcc.5b00051




Giacomo Giorgi, Jun-Ichi Fujisawa, Hiroshi Segawa and Koichi Yamashita

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