Güncel Gönderiler: Makale Koleksiyonu
Toplam kayıt 1058, listelenen: 621-640
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Methylparaben Isolated in Solid Argon: Structural Characterization and UV-Induced Conversion into Methylparaben Radical and Isomeric Ketenes
(American Chemical Society, 2013)Methylparaben (methyl p-hydroxybenzoic acid; MP) is a widely used antimicrobial preservative, being the most frequently used antimicrobial preservative in cosmetics. The generalized use of MP has become controversial, with ... -
Effects of the matrix and intramolecular interactions on the stability of the higher-energy conformers of 2-fluorobenzoic acid
(Amer Inst Physics, 2017)DFT(B3LYP)/6-311++ G(d, p) calculations on 2-fluorobenzoic acid (2FBA) showthat the molecule has four conformers: two lowenergy conformers (forms I and II) with the carboxylic acid group assuming the cis configuration (O ... -
Photoisomerization and Photochemistry of Matrix-Isolated 3-Furaldehyde
(American Chemical Society, 2010)3-Furaldehyde (3FA) was isolated in an argon matrix at 12 K and studied using FTIR spectroscopy and quantum chemistry The molecule has two conformers with trans and cis orientation of the O=C-C=C dihedral angle At the ... -
Theoretical and infrared investigation of 2-acetylpyridine isolated in solid nitrogen and in neat condensed phases
(Elsevier Science BV, 2016)The geometries of the two conformers of 2-acetylpyridine (2AP) were optimized at the DFT/B3LYP/6-311++G(d,p) level of approximation, and their relative energy and interconversion barrier evaluated. Both conformers were ... -
Trans- and cis-stilbene isolated in cryogenic argon and xenon matrices
(Pergamon-Elsevier Science LTD, 2015)Monomers of trans- (TS) and cis-stilbene (CS) were isolated in cryogenic argon and xenon matrices, and their infrared (IR) spectra were fully assigned and interpreted. The interpretation of the vibrational spectra received ... -
Metal-assisted nano-textured solar cells with SiO2/Si3N4 passivation
(Elsevier Science BV, 2017)We demonstrate the fabrication of nano-sized surface textured crystalline silicon by a metal-assisted electroless etching method with nitric acid added as the hole injection agent. This method generates randomly shaped ... -
An Alternative Metal-Assisted Etching Route for Texturing Silicon Wafers for Solar Cell Applications
(IEEE-Inst Electrical Electronics Engineers Inc, 2016)Metal-assisted etching (MAE) can be used to form antireflective and light-trapping structures on crystalline silicon solar cells. This method has been widely used to form nanowires and nanoholes on their surfaces. In this ... -
Comparative evaluation of InAs/GaSb superlattices for mid infrared detection: p-i-n versus residual doping
(IOP Publishing LTD, 2015)We report on the opto-electronic characterization of an InAs/GaSb superlattice (SL) midwave infrared p-i-n photodetector structure (pin-SL) in comparison with the same structure with no intentional doping (i-SL). Both ... -
Ferrocenoyl Benzotriazole, Iv: Microwave-Assisted Synthesis of Novel 1,1 '-Bis-Ferrocenamides
(Taylor & Francis Inc, 2014)An easily applicable microwave-assisted novel 1,1-bis-ferrocenoylbenzotriazole-mediated synthesis of novel derivatives for 1,1-bis-ferrocenamides was applied. This is a cheap, easy, and green method because of microwave ... -
Multi-crystalline silicon solar cells with metal-assisted nano-texturing using HNO3 as hole injection agent
(Wiley-V C H Verlag GMBH, 2016)In this study, metal-assisted etching (MAE) with nitric acid (HNO3) as a hole injecting agent has been employed to texture multi-crystalline silicon wafers. It was previously proven that addition of HNO3 enabled control ... -
Performance of solar cells fabricated on black multicrystalline Si by nanowire decoration
(Elsevier Science BV, 2015)Vertically aligned Si nanowire (NW) arrays fabricated by metal-assisted etching technique were applied to industrial sized (156 mm x 156 mm) multicrystalline Si cells as an anti-reflective (AR) medium. The NW lengths ... -
Synthesis, structural and conformational analysis, and IR spectra of ethyl 4-chloro-7-iodoquinoline-3-carboxylate
(Pergamon-Elsevier Science LTD, 2015)In this work, we report the synthesis of a novel quinoline derivative, ethyl 4-chloro-7-iodoquinoline-3-carboxylate (CIQC), and its structural, conformational and vibrational characterization. The compound was studied in ... -
N-(2-Aminobenzoyl)benzotriazole mediated and t-BuOK promoted synthesis of 2-substituted quinolone 3-carboxylates
(Pergamon-Elsevier Science LTD, 2015)2-Substituted quinolone 3-carboxylates were obtained in moderate to good yields by the reaction of N-(2-aminobenzoyl)benzotriazoles with beta-ketoesters in the presence of t-BuOK in THF -
N-structure based on InAs/AlSb/GaSb superlattice photodetectors
(Academic Press LTD- Elsevier Science LTD, 2015)We have studied the theoretical and experimental properties of InAs/AlSb/GaSb based type-II superlattice (T2SL) pin photodetector called N-structure. Electronic properties of the superlattice such as HH-LH splitting energies ... -
Voltage Tunable Dual-Band Quantum-Well Infrared Photodetector for Third-Generation Thermal Imaging
(IEEE-Inst Electrical Electronics Engineers Inc, 2011)We investigate the theoretical calculations of the voltage tunable dual-band quantum-well infrared photodetector (QWIP) in the long and very long wavelength infrared range (LWIR and VLWIR). The detector consists of two ... -
Selective catalytic oxidation of alkenes employing homobinuclear manganese(II) catalysts with TBHP
(Pergamon-Elsevier Science LTD, 2018)The two novel homobinuclear compounds [Mn-2((II,II)) (mu(1,1)-4-CH3-C6H4COO)(2)(phen)(4)](ClO4)(2) (1) and [Mn-2((II,II)) (mu(1,3)-4-CH3-C6H4COO)(2)(bipy)(4)](ClO4)(2) (2), where bipy=2,2-bipyridine and phen=1,10-phenanthroline, ... -
A Simple, Mild, and Practical Method for the Esterification and Thioesterification of Anthranilic Acid Utilizing N-(2-Aminobenzoyl)benzotriazole
(Georg Thieme Verlag Kg, 2013)A convenient and efficient method for the preparation of anthranilic esters and anthranilic thioesters has been developed by the treatment of N-(2-aminobenzoyl)benzotriazoles with alcohols and thiols in the presence of ... -
Performance evaluation of InAs/GaSb superlattice photodetector grown on GaAs substrate using AlSb interfacial misfit array
(IOP Publishing LTD, 2018)We report on the growth and opto-electronic characterization of type-II InAs/GaSb superlattice (SL) mid-wavelength infrared pin photodetector grown on a GaAs substrate. AlSb interfacial misfit array was employed at the ... -
A carboxylate-bridged Mn(II) compound with 6-methylanthranilate/bipy: oxidation of alcohols/alkenes and catalase-like activity
(Taylor & Francis LTD, 2018)A novel manganese compound, [Mn-2((1,3)-6-CH3-2-NH2C6H4COO)(2)(bipy)(4)](ClO4)(2) (bipy=2,2-bipyridine), was synthesized and used as a catalyst precursor in the oxidation of alkenes and primary alcohols to corresponding ... -
Adsorption kinetics and isotherm parameters of naphthalene onto natural- and chemically modified bentonite from aqueous solutions
(Springer, 2013)Polycyclic aromatic hydrocarbons (PAHs) have widely been studied and a special concern because of their mutagenic and carcinogenic activities. In this study, natural- and chemically modified-bentonite were characterized ...
