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Structural, optical and electrical properties of electrodeposited cadmium selenide thin films for applications in photodetector and photoelectrochemical cell

01-Mar-2015 | Author(s): S. Mahato , A.K. Kar, Journal of Electroanalytical Chemistry, 2015

Publication date: 1 April 2015 Source:Journal of Electroanalytical Chemistry, Volume 742 Author(s): S. Mahato , A.K. Kar Nanocrystalline cadmium selenide (CdSe) thin films have been deposited on indium tin oxide (ITO) coated glass substrates at room temperature (28°C) by using simple two ...

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Nonlinear absorption, nonlinear scattering, and optical limiting properties of MoS2/ZnO composite-based organic glasses

28-Feb-2015 | Bin Qu; Qiuyun Ouyang; Xianbo Yu; Wenhe Luo; Lihong Qi; Yu-Jin Chen, Physical Chemistry Chemical Physics, 2015

MoS2/ZnO composites were synthesized by a solution-based method. The scanning electron microscopy and transmission electron microscopy analysis demonstrated that ZnO nanoparticles with a size of about 4.5 nm were coated on the basal surface of MoS2 nanosheets with expanded spacing of (002) plane. ...

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Monitoring ultrafast intramolecular proton transfer processes in an unsymmetric [small beta]-diketone

27-Feb-2015 | Pramod Kumar Verma; Andreas Steinbacher; Federico Koch; Patrick Nuernberger; Tobias Brixner, Physical Chemistry Chemical Physics, 2015

We report the experimental determination of the intramolecular enol–enol tautomerization rate of an unsymmetric β-diketone, benzoylacetone, with femtosecond transient absorption in the ultraviolet. Initially, there is an equilibrium of two possible enolic structures in solution, which is ...

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A New Selective Chromogenic and Turn-On Fluorogenic Probe for Copper (II) in Solution and Vero Cells: Recognition of Sulphide by [CuL]

25-Feb-2015 | Ajit Kumar Mahapatra; Sanchita Mondal; Saikat Kumar Manna; Kalipada Maiti; Rajkishor Maji; Md. Raihan Kumar Uddin; S ..., Dalton Transactions, 2015

A new coumarin-appended thioimidazole-linked imine conjugate, viz. L has been synthesized and characterized. The L has been found to recognize Cu2+ selectively among a wide range of biologically relevant metal ions. The chemosensing behavior of the L has been demonstrated through fluorescence, ...

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Hydroxymethyl Radical Self-Recombination in High-Temperature Water

25-Feb-2015 | Kotchaphan Kanjana; Jonathan A. Walker; David M. Bartels, Journal of Physical Chemistry A, 2015

The self-recombination reaction of •CH2OH radicals in neutral aqueous solution has been studied at temperatures up to 300 °C at a pressure of 220 bar using pulse radiolysis and transient absorption. •CH2OH species decay by second-order kinetics independent of the applied dose, with a rate ...

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Mo‐Doped BiVO4 Photoanodes Synthesized by Reactive Sputtering

23-Feb-2015 | Le Chen, Francesca M. Toma, Jason K. Cooper, Alan Lyon, Yongjing Lin, Ian D. Sharp, Joel W. Ager, ChemSusChem, 2015

Abstract We report a scalable and reproducible method for reactive co‐sputtering of Mo‐doped BiVO4 thin films with broad compositional control. Optimal photoanode performance is achieved at a Mo concentration of 3 at. %. Incorporation of Mo promotes growth of large grains and reduces majority ...

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Time-Resolved Study of 1,8-Naphthalic Anhydride and 1,4,5,8-Naphthalene-tetracarboxylic Dianhydride

23-Feb-2015 | Thiemo Gerbich; Hans-Christian Schmitt; Ingo Fischer; Jens Petersen; Julian Albert; Roland Mitrić, Journal of Physical Chemistry A, 2015

We investigate the excited electronic states of 1,8-naphthalic anhydride (NDCA) and 1,4,5,8-naphthalene-tetracarboxylic dianhydride (NTCDA) by time- and frequency-resolved electronic spectroscopy in the gas phase using picosecond lasers and by femtosecond time-resolved transient absorption in ...

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Coupled Redox Transformation of Chromate and Arsenite on Ferrihydrite

23-Feb-2015 | Elizabeth B. Cerkez; Narayan Bhandari; Richard J. Reeder; Daniel R. Strongin, Environmental Science & Technology, 2015

The redox chemistry of chromate (Cr(VI)) and arsenite (As(III)) on the iron oxyhydroxide, ferrihydrite (Fh), was investigated. Attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), X-ray absorption spectroscopy (XAS), and X-ray photoelectron spectroscopy (XPS) were used ...

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Photophysical and Photochemical Processes of Excited Singlet and Triplet [3n]Cyclophanes (n = 2–6) Studied by Emission Measurements and Steady-State and Laser Flash Photolyses

23-Feb-2015 | Minoru Yamaji; Hideki Okamoto; Yuhko Hakoshima; Teruo Shinmyozu, Journal of Physical Chemistry A, 2015

Photophysical and photochemical features of [3n]cyclophanes (3nCPs) (n = 2–6) in solution were investigated by emission and transient absorption measurements. The studied 3nCPs show excimer fluorescence without locally excited fluorescence whereas some of them emit excimer phosphorescence in ...

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Enhanced optical limiting behaviour of indium phthalocyanine derivatives when in solution or embedded in poly(acrylic acid) or poly(methyl methacrylate) polymers

22-Feb-2015 | Author(s): Kayode Sanusi , Tebello Nyokong, Journal of Photochemistry and Photobiology A: Chemistry, 2015

Publication date: 15 April–1 May 2015 Source:Journal of Photochemistry and Photobiology A: Chemistry, Volumes 303–304 Author(s): Kayode Sanusi , Tebello Nyokong The optical limiting performance of indium phthalocyanine-based polymer thin-films with large nonlinear absorption coefficients ...

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