Results 71 to 80 of about 186,481 (284)

Size-controllable synthesis of dendritic Pd nanocrystals as improved electrocatalysts for formic acid fuel cells’ application

Journal of Saudi Chemical Society, 2018
Control over size and shape of Pd nanocrystals is critical for highly active and stable catalysts in direct formic acid fuel cells’ application. In this work, dendritic Pd nanocrystals have been successfully synthesized using a facile, environmentally ...
Tengyue Ma, Chaozhong Li, Taiyang Liu, Qiang Yuan   +3 more
doaj   +1 more source

Resilient Pathways to Atomic Attachment of Quantum Dot Dimers and Artificial Solids from Faceted CdSe Quantum Dot Building Blocks. [PDF]

, 2019
The goal of this work is to identify favored pathways for preparation of defect-resilient attached wurtzite CdX (X = S, Se, Te) nanocrystals. We seek guidelines for oriented attachment of faceted nanocrystals that are most likely to yield pairs of ...
Alivisatos, A Paul, Lostica, Michael, Ondry, Justin C, Philbin, John P, Rabani, Eran   +4 more
core  

Biomimetic Iridescent Skin: Robust Prototissues Spontaneously Assembled from Photonic Protocells

Advanced Functional Materials, EarlyView.
Uniform nanoparticles are induced to form arrays (photonic crystals) in the cores of biopolymer capsules, endowing these ‘protocells’ with structural color. These protocells are then assembled into large self‐standing objects, i.e., prototissues, with robust mechanical properties as well as iridescent optical properties.
Medha Rath, Briahnah Streeter, Satyam Srivastava, Jemma Wood, William E. Bentley, Taylor J. Woehl, Srinivasa R. Raghavan   +6 more
wiley   +1 more source

Comparison of in situ nanocrystals, Sr and nanocrystals + Sr manipulating microstructures and mechanical properties of eutectic Al–Si13.0–Cu5.0–(Ni2.0)–Mg0.6 alloy

Journal of Materials Research and Technology, 2020
Trace in situ nanocrystals crystallized from metallic glasses as innovative microstructure manipulation agents were proposed to manipulate the multilevel microstructure configuration of eutectic Al–Si13.0–Cu5.0–Mg0.6 alloy. And the manipulation effect by
Tian-Shu Liu, Jian-Rong Zhao, Tian-Jing Miao, Xue Han, Shuang Zhang, Feng Qiu   +5 more
doaj   +1 more source

Effect of the Surface on the Electron Quantum Size Levels and Electron g-Factor in Spherical Semiconductor Nanocrystals

, 2002
The structure of the electron quantum size levels in spherical nanocrystals is studied in the framework of an eight--band effective mass model at zero and weak magnetic fields.
A. Abragam, A. Hasselbarth, A. Mews, A. V. Rodina, A. Yu. Alekseev, A.A. Kiselev, A.A. Sirenko, A.I. Ekimov, A.P. Alivisatos, A.V. Kapustina, A.V. Rodina, A.V. Rodina, Al. L. Efros, Al.L. Efros, B. Alperson, C. Hermann, C.B. Murray, C.R. Pidgeon, D. Schooss, D.J. Norris, E. Lifshitz, E.A. de Andrada e Silva, E.L. Ivchenko, F.T. Vasko, G. Dresselhaus, H. Margenau, H. Weller, J.A. Gupta, J.A. Gupta, J.M. Luttinger, L. Langof, L.E. Brus, L.I. Magarill, L.M. Roth, L.S. Braginsky, M. Kuno, M. Kuno, M.S. Shim, M.V. Entin, O. Millo, O. Voskoboynikov, O.I. Mićić, P. Guyot-Sionnest, P. Guyot-Sionnest, S.A. Empedocles, U. Banin, V.I. Klimov, Yu.A. Bychkov, Yu.A. Bychkov   +48 more
core   +1 more source

Physico-chemical properties of nanocrystalline apatites: Implications for biominerals and biomaterials [PDF]

, 2007
Nanocrystalline apatites play an important role in biomineralisation and they are used as bioactive biominerals for orthopaedic applications. One of the most interesting characteristics of the nanocrystals, evidenced by spectroscopic methods, is the ...
Barroug, Allal, Combes, Christèle, Drouet, Christophe, Rey, Christian, Sfihi, Hocine   +4 more
core   +6 more sources

Defect‐Mediated Scintillation in Fully Inorganic Perovskites via Water‐Induced 0D/3D Phase Modulation

Advanced Functional Materials, EarlyView.
A reproducible synthesis to control 3D/0D phase ratios via water‐tuned solvent–antisolvent methods is presented. Enhanced scintillation yield and ultrafast decay are achieved. Defect‐driven emission mechanisms are revealed through cathodoluminescence and radioluminescence, shedding light on the underexplored role of the 0D Cs4PbBr6 and mixed 0D/3D ...
Mario Calora, Francesco Carulli, Nadir Vanni, Antonella Giuri, Elena Ferrari, Matteo Masino, Laura Lazzarini, Francesca Rossi, Gianluca Accorsi, Anna Moliterni, Davide Altamura, Cinzia Giannini, Luca Cappelletti, Gianluca Quarta, Alberto Quaranta, Rosanna Mastria, Anna Paola Caricato, Sergio Brovelli, Aurora Rizzo   +18 more
wiley   +1 more source

Light emission from silicon with tin-containing nanocrystals

, 2015
Tin-containing nanocrystals, embedded in silicon, have been fabricated by growing an epitaxial layer of Si_{1-x-y}Sn_{x}C_{y}, where x = 1.6 % and y = 0.04 %, followed by annealing at various temperatures ranging from 650 to 900 degrees C.
Balling, Peter, Chevallier, Jacques, Gaiduk, Peter I., Hansen, John Lundsgaard, Jensen, Pia Bomholt, Julsgaard, Brian, Larsen, Arne Nylandsted, Roesgaard, Søren, Svane, Axel   +8 more
core   +2 more sources

3D characterization of CdSe nanoparticles attached to carbon nanotubes [PDF]

, 2008
The crystallographic structure of CdSe nanoparticles attached to carbon nanotubes has been elucidated by means of high resolution transmission electron microscopy and high angle annular dark field scanning transmission electron microscopy tomography ...
A. B. F. Martinson, A. J. Nozik, A. W. Stevenson, Ana B. Hungría, B. H. Juarez, B. Q. Sun, Beatriz H. Juárez, C. B. Murray, Christian Klinke, D. J. Milliron, D. V. Talapin, D. V. Talapin, H. Lee, Horst Weller, I. Robel, J. C. Hernandez, J. J. Cha, J. Joo, J. Park, L. H. Qu, L. Manna, L. Manna, L. Sheeney-Haj-Khia, M. A. Anderson, M. A. Hines, M. Casavola, O. Ersen, O. I. Micic, P. A. Midgley, P. S. Nair, P. V. Kamat, P. Wang, Paul A. Midgley, R. Plass, S. A. Mcdonald, S. Bernal, S. C. Erwin, T. Mokari, V. Perebeinos, W. U. Huynh, W. W. Yu, W. Z. Ostwald, X. G. Peng, Y. W. Jun, Z. A. Peng, Z. A. Peng, Z. A. Peng   +46 more
core   +1 more source

Complex Cryptographic and User‐Centric Physically Unclonable Functions Enabled by Strain‐Sensitive Nanocrystals via Selective Ligand Exchange

Advanced Functional Materials, EarlyView.
This study investigates electromechanical PUFs that improve on traditional electric PUFs. The electron transport materials are coated randomly through selective ligand exchange. It produces multiple keys and a key with motion dependent on percolation and strain, and approaches almost ideal inter‐ and intra‐hamming distances.
Seungshin Lim, Hanseok Seo, Taesung Park, Byung Ku Jung, Junhyeok Park, Young Kyun Choi, Dae Yang Oh, Soong Ju Oh   +7 more
wiley   +1 more source