Results 141 to 150 of about 1,928,738 (354)

Forensic applications of raman spectroscopy [PDF]

open access: yes, 2002
The forensic applications of Raman spectroscopy have been explored and extended using the development of novel sampling techniques and task-specific instrumentation described in this thesis.
Thomson, Grant
core  

Bio‐Derived Polyelectrolyte Additive–Induced Interfacial Ion‐Diffusion Barriers for Nonvolatile Organic Artificial Synapses

open access: yesAdvanced Functional Materials, EarlyView.
Sodium alginate regulates interfacial ion transport and retention in electrolyte‐gated synaptic transistors. The carboxylate‐rich polymeric network forms a dynamic interfacial ion‐diffusion barrier that facilitates ion injection during programming while suppressing ion back‐diffusion, thereby stabilizing the electrochemically doped channel state.
Chaeyeon Han   +6 more
wiley   +1 more source

Raman spectra of SiC nanorods with different excitation wavelengths [PDF]

open access: yes, 2001
With increasing excitation wavelength from 514 to 782 mn, a significant difference in the Raman spectra of SIC nanorods was observed as compared to bulk material.
Fan SS   +6 more
core  

Polarization Sensitivity of Chiral Manganese Halide Scintillators Enables High‐Resolution X‐Ray Imaging

open access: yesAdvanced Functional Materials, EarlyView.
Highly luminescent chiral manganese halide crystals are synthesized using chiral ligands, and they exhibit dissymmetry factors up to 1.4 × 10−2 and show X‐ray detection scintillation capability with a light yield of 43 380 photons/MeV and a low detection limit of 0.05198 µGyair·s−1.
Yue Han   +9 more
wiley   +1 more source

Characterization of octamethylsilsesquioxane (CH3)8Si8O12 fillers in polypropene matrix [PDF]

open access: yes, 2011
The results of Raman microspectroscopy measurements of octamethylsilsesquioxane (om-POSS) (3-wt %) in polypropylene (PP) are presented and compared with theoretical spectra calculated by ab initio density functional theory (DFT) based methods.
Ahonen, S.   +17 more
core  

Halide Perovskite Integrated Photovoltaic Cathodes Incorporating Pt on ZIF‐8‐Derived Carbon for Solar Hydrogen Production

open access: yesAdvanced Functional Materials, EarlyView.
A low‐Pt catalyst supported on zeolitic imidazolate framework (ZIF‐8)‐derived porous carbon and graphite is integrated with a halide perovskite photovoltaic, yielding cathodes that achieve a high photocurrent density (∼20 mA cm−2) under simulated sunlight and exhibit remarkable stability in acidic media over several days, thereby demonstrating a ...
Na Yeong Oh   +12 more
wiley   +1 more source

Identification of biomolecules by mechanical modulation Raman microscopy [PDF]

open access: yes, 2013
textRaman microscopy is a tool used by physicists to collect molecular information from a wide variety of samples. Biophysicists have increasingly made use of Raman microscopy in combination with optical tweezers to identify the molecular makeup of ...
Hinko, Kathleen Ann
core   +1 more source

Si‐Doped Nanocrystalline Diamond as Highly Sensitive Luminescence Thermometer for the Physiological Temperature Range

open access: yesAdvanced Functional Materials, EarlyView.
In this work, diamonds with negative charged silicon‐vacancy (SiV−) centers have been designed for use as thermometers in biomedical applications. Multiparametric analysis of the emission characteristics of the SiV− centers provides extraordinary sensitivity for temperature detection in the physiological temperature range.
María Gragera   +6 more
wiley   +1 more source

FORMATION OF SILICON NANOWIRES BY METAL-ASSISTED CHEMICAL ETCHING AND STUDY OF ITS OPTICAL PROPERTIES

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2019
The results of study and development of silicon nanowires (SiNWs) formation by metal-assisted chemical etching (MACE) are introduced. Linear dependence of SiNWs length from etching time is established.
H. V. Bandarenka   +4 more
doaj  

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