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Showing 1 to 13 of 13 for “"UV-VIS ABSORPTION SPECTROSCOPY"”.
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Synthesis and Characterization of Magnetic II-VI Nanoparticles
… electron microscope (TEM) imaging and UV-Vis absorption spectroscopy. Spin-carrier relaxation times were determined using a superconducting quantum interference device (SQUID) magnetometer.
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Synthesis and characterization of cadmium selenide and zinc selenide nanoparticles
… confirmed by using different techniques such as UV-Vis absorption spectroscopy, photoluminescence spectroscopy (PL), X-ray diffraction (XRD), transmission electron microscopy (TEM) and infrared spectroscopy (FT-IR).
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Síntesis de nanoestruturas metálicas de oro y plata a partir de precursores organometálicos: Propiedades plasmónicas y catalíticas
… of formation of the nanostructures through UV-Vis absorption spectroscopy and nuclear magnetic resonance, which has allowed us to know mechanism and the molecular species involved in the formation of these bimetallic nanostructures. In the third chapter the synthesis of bimetallic core-shell …
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FROM SYNTHESIS TO APPLICATION:PORPHYRINS AS VERSATILE COMPOUNDS IN ENERGY, SENSING, AND CATALYSIS
… from red to green, originates from robust absorption within the visible spectrum. UV-VIS absorption spectroscopy plays a crucial role in examining their light-harvesting properties. When coupled with electrochemical methods and theoretical calculations, it provides insights into the …
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Interactions of cadmium selenide (CdSe) quantum dots with coagulant proteins extracted from Moringa oleifera seeds
… QDs and MOCP was studied using the Ultraviolet (UV)-vis absorption spectroscopy, fluorescence (FL) emission spectroscopy and the Fourier Transform Infrared spectroscopy (FTIR). The UV-vis absorption spectrum showed an absorption band of CdSe and MOCP at 546.5 nm, with an increase in concentration …
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Self-assembled thin polymer film used for sensing application
… surface. According to water contact angle and UV/Vis absorption spectroscopy data, the stability of this self assembled monolayer on oxidized AlGaN/ GaN surface can be improved by photopolymerization of SAMs. The photopolymerization efficiency of the SAMs is effected by the position of …
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Electronic Properties and Langmuir-Blodgett Films of Discotic Organic Semiconductors
… mesophases. Solution cyclic voltammetry and UV-Vis absorption spectroscopy as well as computational studies at the DFT level were employed to measure and predict electronic properties of DLCs based on triphenylene and phthalocyanine derivatives (Chapters 2-4). These are the first reported …
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Implications For the Role of the Peroxoferric Intermediate In the Second Step of Nitric Oxide Synthase Derived From the Reactivity of P450-Cam With Camphor-5-Oxime and Characterization of the Heme Iron Coordination Structures of Tyrosine- and Histidine-Ligated Heme Enzymes Using Magnetic Circular Dichroism Spectroscopy
… <p>Magnetic circular dichroism (MCD) and UV-Visible (UV-Vis) absorption spectroscopy have been used to characterize the heme-iron coordination structure of (A) several tyrosinate-ligated heme enzymes and (B) the high potential (HP) and low potential (LP) heme centers of the diheme …
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Aggregation of Squaraine Dye Derivatives in Solid State Spin-coated Thin Films
… as models to study aggregation behavior. Their UV-vis absorption, thermal properties, and photoluminescence properties were determined. The models with four hydroxy substituents exhibited higher thermal stability and melt at higher temperature compared to the dye with only two hydroxy …
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Synthesis, radiolabelling and pharmacological evaluation of CO-releasing molecules
… including 1H, 13C{1H}, and 31P{1H} NMR spectroscopy, infrared spectroscopy, and mass spectrometry. The stability and CO-release properties of the Mn(I) complexes were investigated using UV/Vis absorption spectroscopy. A decrease in the MLCT absorption band suggests the release of CO. …
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Interaction of the potential DNA-radiosensitizer 8-bromoadenine with free and plasmonically generated electrons
… and native nucleobases was tracked with UV-Vis absorption spectroscopy and the generated fragments were identified with surface enhanced Raman scattering (SERS). Beside the electron induced damage, nucleobase analogues are decomposed in the vicinity of the laser illuminatednanoparticles …
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Understanding emergence of supramolecular chirality in lyotropic conjugated polymers
… (ED), optical and electron microscopy, and UV–vis absorption spectroscopy, I identify several distinct solution aggregate structures. These structures give rise to three drastically different assembly pathways, which define film morphology and charge-carrier mobility in organic field-effect …
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ΦΑΣΜΑΤΟΣΚΟΠΙΚΗ ΜΕΛΕΤΗ ΑΕΡΙΩΝ ΣΥΜΠΛΟΚΩΝ ΣΕ ΥΨΗΛΕΣ ΘΕΡΜΟΚΡΑΣΙΕΣ ΣΕ ΣΥΣΤΗΜΑΤΑ ΧΛΩΡΙΟΥΧΩΝ ΑΛΑΤΩΝ ΤΩΝ ΣΙΔΗΡΟΥ, ΧΡΥΣΟΥ ΚΑΙ ΑΛΟΥΜΙΝΙΟΥ
RAMAN SPECTROSCOPY AND UV-VIS ABSORPTION SPECTROPHOTOMETRY HAVE BEEN USED IN ORDER TO STUDY TWO COLORED VAPORS SYSTEMS, THOSE OF IRON (III) CHLORIDE-ALUMINUM CHLORIDE AND GOLD (III) CHLORIDE- ALUMINUM CHLORIDE. IN BOTH SYSTEMS, COMPLEX MOLECULES ARE FORMED IN THE VAPOR PHASE. THE TECHNIC OF HIGH …