Cerpentier, Florian J. R. Karlsson, Joshua Lalrempuia, Ralte Brandon, Michael P. Sazanovich, Igor V. Greetham, Gregory M. Gibson, Elizabeth A. Pryce, Mary T.
Published in
Frontiers in Chemistry
Two novel supramolecular complexes RuRe ([Ru(dceb)2(bpt)Re(CO)3Cl](PF6)) and RuPt ([Ru(dceb)2(bpt)PtI(H2O)](PF6)2) [dceb = diethyl(2,2′-bipyridine)-4,4′-dicarboxylate, bpt = 3,5-di(pyridine-2-yl)-1,2,4-triazolate] were synthesized as new catalysts for photocatalytic CO2 reduction and H2 evolution, respectively. The influence of the catalytic metal ...
Bildé, A Redeckas, K Melninkaitis, A Vengris, M Guizard, S
Published in
Journal of physics. Condensed matter : an Institute of Physics journal
The relaxation of excited carriers in α-Al2O3is complex, depending for instance on the type of ionizing radiation. Using femtosecond time-resolved absorption spectroscopy, we can induce a controllable excitation density on a wide range, and follow the relaxation dynamics from 30 fs to 7 ns. We show that the excited carrier decay is non-exponential:...
Wolff, Christian M Bourelle, Sean A Phuong, Le Quang Kurpiers, Jona Feldmann, Sascha Caprioglio, Pietro Marquez, Jose Antonio Wolansky, Jakob Unold, Thomas Stolterfoht, Martin
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Funder: EPSRC; Id: http://dx.doi.org/10.13039/501100000266 / Abstract: Ideally, the charge carrier lifetime in a solar cell is limited by the radiative free carrier recombination in the absorber which is a second‐order process. Yet, real‐life cells suffer from severe nonradiative recombination in the bulk of the absorber, at interfaces, or within o...
Wätzel, Jonas Blättermann, Alexander Schulz, Dominik Chiang, Chengtien Berakdar, Jamal
We study theoretically the transfer of the light field orbital angular momentum (OAM) to propagating electrons upon photoemission from quantum well states. Irradiation with a Laguerre–Gaussian mode laser pulse elevates the quantum well state into a laser-dressed Volkov state that can be detected in an angular and energy-resolved manner while varyin...
Du, Lili Yan, Zhiping Bai, Xueqin Liang, Runhui Phillips, David Lee
Published in
International Journal of Molecular Sciences
Nitrenium ions are common reactive intermediates with high activities towards some biological nucleophiles. In this paper, we employed femtosecond transient absorption (fs-TA) and nanosecond transient absorption (ns-TA) as well as nanosecond time-resolved resonance Raman (ns-TR3) spectroscopy and density function theory (DFT) calculations to study ...
Auvray, François Dennetiere, David Giuliani, Alexandre Jamme, Frédéric Wien, Frank Nay, Bastien Zirah, Séverine Polack, François Menneglier, Claude Lagarde, Bruno
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Published in
Structural Dynamics
Ultraviolet (UV) synchrotron radiation circular dichroism (SRCD) spectroscopy has made an important contribution to the determination and understanding of the structure of bio-molecules. In this paper, we report an innovative approach that we term time-resolved SRCD (tr-SRCD), which overcomes the limitations of current broadband UV SRCD setups. Thi...
Rupp, Fabian Chevalier, Katharina Graf, Michèle Schmitz, Markus Kelm, Harald Grün, Anneken Zimmer, Manuel Gerhards, Markus van Wüllen, Christoph Krüger, Hans-Jörg
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Published in
Chemistry (Weinheim an der Bergstrasse, Germany)
A comprehensive spectroscopic and structural investigation of [CoII (l-N4 tBu2 )(dbsq)][B(p-C6 H4 Cl)4 ] (1, l-N4 tBu2 =N,N'-di-tert-butyl-2,11-diaza[3.3](2,6)pyridinophane, dbsq1- =3,5-di-tert-butylsemiquinonate), the first known octahedral complex with a low-spin (ls) CoII semiquinonate ground state, is reported. Above 200 K, solids as well as so...
bultrini, d dunning, d campbell, lt allan, rj bwj, mcneil jda, smith thompson, nr
Terschlüsen, Joachim A.
This thesis presents HELIOS, an in-house laboratory for time-resolved pump-probe spectroscopy with extreme-ultraviolet (XUV) probe radiation. A wide span of pump wavelengths can be generated using commercial laser equipment while XUV probe radiation is generated via a high harmonic generation process in a noble gas delivering probe photons with ene...
BHATTACHARYYA, SANTANU PATRA, AMITAVA
Published in
Bulletin of Materials Science
In this report, we have demonstrated the photoluminescence quenching and energy transfer properties of semiconducting polymer nanoparticles, poly (N-vinylcarbazole) (PVK) in presence of different sized Au nanoparticles by steady state and time-resolved spectroscopy. We have described the quenching phenomena by sphere of action static quenching mech...
