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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 ...


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. ...


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 ...


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, ...


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 ...


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 ...


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 ...


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 ...


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 ...


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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