Results 141 to 150 of about 29,896 (261)

Alignment of misfit dislocations in the In0.52Al0.48As/InxGa1-xAs/In0.52Al0.48As/InP heterostructure

open access: yes, 1998
It was observed with transmission electron microscopy in the In0.52Al0.48As/InxGa1-xAs/In0.52Al0.48As system grown on the (001) InP substrate that misfit dislocation lines deviate [110] directions at an angle with its value depending on the gallium ...
Wu J   +4 more
core  

Electrocatalytic CO2 Reduction over Sn‐Cu Bimetallic Catalysts Synthesized via an Amalgamated Lithium Metal Method

open access: yesAdvanced Science, EarlyView.
An amalgamated lithium metal method enables systematic control of Sn–Cu active‐site dimensions from isolated atoms to nanocrystallites. Increasing the metal loading shifts CO2 electroreduction selectivity from acetaldehyde on highly dispersed Sn–Cu sites to formate on Sn‐rich crystallites, revealing how bimetallic dispersion and local coordination ...
Minghao Xie   +6 more
wiley   +1 more source

PHOTOLUMINESCENCE STUDIES OF CHEMICAL ADSORPTION OF GAAS/ALXGA1-XAS MULTIQUANTUM-WELL SEMICONDUCTOR

open access: yes, 1995
Adsorption of ferrocene and p-methylnitrobenzene on a GaAs/AlxGa1-xAs multiquantum well semiconductor is characterized by the changes in the photoluminescent response in terms of the interactions of adsorbed molecules with surface ...
LIU Y   +7 more
core  

Bioinspired Porphyrin‐Based Catalysts From Temporospatial Confined Frameworks for Ultrafast Removal of Sulfaclozine

open access: yesAdvanced Science, EarlyView.
We report the rational design of artificial photocatalysts with asymmetrically coordinated dual‐metal centers and a tailored microenvironment, broadly applicable strategy is established for the synthesis of multivariate zirconium‐based metal–organic frameworks, offering a platform for precisely tuning active‐site configurations to optimize ...
Yuxin Lu   +11 more
wiley   +1 more source

EELS at Extreme Energy Losses; complementary Information to X-ray Absorption Spectroscopy (XAS) in a TEM [PDF]

open access: yesBIO Web of Conferences
Lazar Sorin   +6 more
doaj   +1 more source

XAS data (averaged and rebinned)

open access: yes
Collected XAS spectra (averaged and rebinned) for the Paper: "In situ mapping of iron oxidation in laminar metal fuel flames using X-ray absorption ...
Seitz, Malte   +7 more
core   +1 more source

Minimal Transport Units Govern Oxygen‐Defect Stabilization and Transport for Lightweight Solid Electrolytes

open access: yesAdvanced Science, EarlyView.
Lightweight borate chemistry combined with minimal transport units provides a new pathway for designing lightweight oxide‐ion solid electrolytes. ABSTRACT Solid electrolytes are central to electrochemical energy technologies, including fuel cells, sensors, catalysis, membrane separation, and electrolyser.
Xiaohui Li   +13 more
wiley   +1 more source

XAS-laitteisto ja XANES-menetelmä

open access: yes, 2017
Tässä tutkielmassa käsitellään röntgenabsorptiospektrometrilaitteistoa sekä lähireuna-absorptiospektroskopia -menetelmää. Tässä työssä esitellään Helsingin yliopiston röntgenabsorptiospektrometri sekä keskitytään XANES-menetelmään (XANES, X-ray ...
Ollikkala, Sami
core  

Origin of Enhanced Efficiency and Reduced Roll‐Off in Organic Light‐Emitting Diodes Based on Pt(II) Complexes

open access: yesAdvanced Science, EarlyView.
Controlled Pt–Pt fine structure in square‐planar Pt(II) complexes governs metal–metal‐to‐ligand charge‐transfer (MMLCT) state formation, exciton dynamics, and organic light‐emitting diode performance. Short Pt–Pt contacts in Pt(fppz)2 enable coherent metal–metal coupling, sub‐microsecond emission and an external quantum efficiency of 29%, whereas ...
Atul Shukla   +15 more
wiley   +1 more source

Detección de Xanthomonas albilineans agente causal de la escaldadura foliar de la caña de azúcar usando la técnica de elisa y medios selectivos Detection Xanthomonas albilineans, causal agent of sugarcane leaf scald, using Elisa technique and selective media

open access: yesBioagro, 2008
La escaldadura de la hoja de la caña de azúcar, causada por la bacteria Xanthomonas albilineans (Ashby) Dowson, puede presentar diferentes tipos de síntomas debido a su carácter sistémico.
Odaliz Jiménez, Nancy Contreras
doaj  

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