Results 81 to 90 of about 158,069 (332)

THE SIZE DEPENDENCIES OF PROPERTIES OF Mo - W ALLOY OF EQUIATOMIC COMPOSITION

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2020
Based on the parameters of the Mie–Lennard-Jones pair-wised potential of the interatomic interaction for Mo and W, the potential parameters for an equiatomic Mo - W substitution alloy were calculated.
S.P. Kramynin
doaj   +1 more source

Size-dependent bandgap and particle size distribution of colloidal semiconductor nanocrystals [PDF]

, 2017
A new analytical expression for the size-dependent bandgap of colloidal semiconductor nanocrystals is proposed within the framework of the finite-depth square-well effective mass approximation in order to provide a quantitative description of the quantum
A. G. Silva, A. V. N. C. Teixeira, Adachi S., Bányai L., D. L. Ferreira, Ekimov A. I., Ekimov A. I., Golubkov V. V., Golubkov V. V., Gross E. K. U., J. Bettini, J. C. L. Sousa, M. A. Schiavon, R. N. Maronesi, Éfros Al. L., Éfros Al. L.   +15 more
core   +2 more sources

Emergence of Light‐Transforming Layered Hybrid Halide Perovskites

Advanced Functional Materials, EarlyView.
The emerging class of light‐transforming layered halide perovskite materials is reviewed, outlining challenges for their development and perspectives toward application in the future. Abstract Layered hybrid halide perovskites (LHPs) have attracted considerable attention in optoelectronics.
Ghewa AlSabeh, Jovana V. Milić
wiley   +1 more source

Anomalous Suppression of Valley Splittings in Lead Salt Nanocrystals without Inversion Center

, 2011
Atomistic sp3d5s* tight-binding theory of PbSe and PbS nanocrystals is developed. It is demonstrated, that the valley splittings of confined electrons and holes strongly and peculiarly depend on the geometry of a nanocrystal. When the nanocrystal lacks a
A. N. Poddubny, B. Volkov, C. Delerue, F. Herman, G. Bir, H. Bilz, M. O. Nestoklon, S. V. Goupalov, W. Harrison   +8 more
core   +1 more source

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

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

Synthesis, Characterization and Properties of CeO2-doped TiO2 Composite Nanocrystals

Medžiagotyra, 2013
Pure TiO2 and CeO2-doped TiO2 (3 % CeO2-97 %TiO2) composite nanocrystals were synthesized via co-precipitation method and characterized using TGA, XRD, FTIR, DR-UV-vis and TEM. The XRD data revealed that the phase structure of the synthesized samples was
Oman ZUAS, Nuryatini HAMIM
doaj   +1 more source

Structure of metal melt

Литьë и металлургия, 2020
Modern conventional notions of metallic melt structure are associated with clusters that have no interfacial boundaries. The maximum time of formation and life of the cluster is 10–7s. Clusters are formed statistically, randomly. According to probability
E. I. Marukovich, V. Yu. Stetsenko
doaj   +1 more source

Molecular and nanostructural mechanisms of deformation, strength and toughness of spider silk fibrils [PDF]

, 2010
Spider silk is one of the strongest, most extensible and toughest biological materials known, exceeding the properties of many engineered materials including steel.
Alberto Redaelli, Andrea Nova, Markus J. Buehler, Nicola Pugno, Sinan Keten   +4 more
core   +2 more sources

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