Zobrazeno 1 - 10
of 12
pro vyhledávání: '"James Budarz"'
Autor:
James Budarz, Thomas Rossi, Dominik Kinschel, Jochen Rittmann, Daniel Grolimund, Thomas Huthwelker, Chris J. Milne, M. Hannelore Rittmann-Frank, Fabio G. Santomauro, Majed Chergui
Publikováno v:
CHIMIA, Vol 71, Iss 11 (2017)
We review our recent results on the implementation of picosecond (ps) X-ray absorption spectroscopy to probe the electronic and geometric structure of centres formed by photoexcitation of solar materials such as TiO2 polymorphs and inorganic Cs-based
Externí odkaz:
https://doaj.org/article/b5fc6ab854834b4db3a2d8ef7ac352e1
Autor:
Fabio G. Santomauro, Jakob Grilj, Lars Mewes, Georgian Nedelcu, Sergii Yakunin, Thomas Rossi, Gloria Capano, André Al Haddad, James Budarz, Dominik Kinschel, Dario S. Ferreira, Giacomo Rossi, Mario Gutierrez Tovar, Daniel Grolimund, Valerie Samson, Maarten Nachtegaal, Grigory Smolentsev, Maksym V. Kovalenko, Majed Chergui
Publikováno v:
Structural Dynamics, Vol 4, Iss 4, Pp 044002-044002-11 (2017)
We report on an element-selective study of the fate of charge carriers in photoexcited inorganic CsPbBr3 and CsPb(ClBr)3 perovskite nanocrystals in toluene solutions using time-resolved X-ray absorption spectroscopy with 80 ps time resolution. Probin
Externí odkaz:
https://doaj.org/article/14273744b56a45f19558a24ddca6a534
Autor:
Thomas Rossi, Anne Marie March, Gilles Doumy, Franziska Krieg, Dominik Kinschel, Ming-Feng Tu, Yoshiaki Kumagai, Majed Chergui, Oliviero Cannelli, Maksym V. Kovalenko, Andre Al Haddad, Grigory Smolentsev, Janina Löffler, James Budarz, Giulia F. Mancini, Donald A. Walko
Publikováno v:
The 22nd International Conference on Ultrafast Phenomena 2020.
Out-of-equilibrium photo-induced structural changes are probed with element-selectivity in CsPbBr3 perovskite nanoparticles using 100 ps resolution time-resolved X-ray absorption spectroscopy.
Autor:
Patrick Lynch, Gregory Lowry, James Budarz, Craig J. Yennie, Wenlei Zhu, Li-Qiong Wang, Danielle Rand
Publikováno v:
Journal of Chemical Education. 93:722-728
Here we describe an acid rain neutralization laboratory experiment and its corresponding instructional video. This experiment has been developed and implemented for use in the teaching laboratory of a large introductory chemistry course at Brown Univ
Autor:
Thomas J. Lane, Joseph Robinson, Adam Kirrander, Peter M. Weber, David M. Rogers, James Budarz, Jerome B. Hastings, Daniel Ratner, Michael P. Minitti, Brian Stankus
Publikováno v:
Stankus, B, Budarz, J M, Kirrander, A, Rogers, D, Robinson, J, Lane, T J, Ratner, D, Hastings, J, Minitti, M P & Weber, P M 2016, ' Femtosecond photodissociation dynamics of 1,4-diiodobenzene by gas-phase X-ray scattering and photoelectron spectroscopy ', Faraday Discussions, vol. 194, pp. 525-536 . https://doi.org/10.1039/C6FD00135A
We present a multifaceted investigation into the initial photodissociation dynamics of 1,4-diiodobenzene (DIB) following absorption of 267 nm radiation. We combine ultrafast time-resolved photoelectron spectroscopy and X-ray scattering experiments pe
Autor:
Daniel Ratner, Joseph Robinson, Adam Kirrander, Peter M. Weber, Brian Stankus, Kenichiro Saita, Vale Cofer-Shabica, Thomas Northey, Thomas J. Lane, Jerome B. Hastings, Michael P. Minitti, James Budarz
Publikováno v:
Faraday Discuss.. 171:81-91
We aim to observe a chemical reaction in real time using gas-phase X-ray diffraction. In our initial experiment at the Linac Coherent Light Source (LCLS), we investigated the model system 1,3-cyclohexadiene (CHD) at very low vapor pressures. This rea
Autor:
Harry A. Frank, Miriam M. Enriquez, Amy M. LaFountain, George N. Gibson, James Budarz, Marcel Fuciman
Publikováno v:
Chemical Physics Letters. 493:353-357
Steady-state and femtosecond time-resolved transient absorption spectra of diadinoxanthin and diatoxanthin were measured in the visible and near-infrared (NIR) regions at 293 K. The difference in energy between the visible S 0 → S 2 transitions fro
Autor:
Brian Stankus, Diling Zhu, Peter M. Weber, Daniel Ratner, Michael P. Minitti, James Budarz, Marcin Sikorski, Thomas Northey, Jerome B. Hastings, Joseph Robinson, Silke Nelson, Michael Kozina, James M. Glownia, Kenichiro Saita, Henrik T. Lemke, Adam Kirrander, Yiping Feng, Thomas J. Lane
Publikováno v:
Minitti, M, Budarz, J, Kirrander, A, Robinson, J S, Ratner, D, Lane, T J, Zhu, D, Glownia, J M, Kozina, M, Lemke, H T, Sikorski, M, Feng, Y, Nelson, S, Saita, K, Stankus, B, Northey, T, Hastings, J & Weber, P 2015, ' Imaging Molecular Motion: Femtosecond X-Ray Scattering of an Electrocyclic Chemical Reaction ', Physical Review Letters, vol. 114, no. 25, 255501 . https://doi.org/10.1103/PhysRevLett.114.255501
Structural rearrangements within single molecules occur on ultrafast time scales. Many aspects of molecular dynamics, such as the energy flow through excited states, have been studied using spectroscopic techniques, yet the goal to watch molecules ev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::076dfd4bbfe2aa345ede36e040c624e8
https://www.pure.ed.ac.uk/ws/files/20026122/Minitti_PRL_2015.pdf
https://www.pure.ed.ac.uk/ws/files/20026122/Minitti_PRL_2015.pdf
Autor:
Dominik Kinschel, Thomas Huthwelker, Majed Chergui, Daniel Grolimund, Thomas Rossi, J. Rittmann, M. Hannelore Rittmann-Frank, Christopher J. Milne, Fabio G. Santomauro, James Budarz
Publikováno v:
CHIMIA International Journal for Chemistry
CHIMIA, Vol 71, Iss 11 (2017)
CHIMIA, Vol 71, Iss 11 (2017)
We review our recent results on the implementation of picosecond (ps) X-ray absorption spectroscopy to probe the electronic and geometric structure of centres formed by photoexcitation of solar materials such as TiO2 polymorphs and inorganic Cs-based
Autor:
Majed Chergui, Giacomo Rossi, Valerie Samson, Andre Al Haddad, Maksym V. Kovalenko, Thomas Rossi, Daniel Grolimund, Sergii Yakunin, Grigory Smolentsev, Dario S. Ferreira, James Budarz, Mario Gutierrez Tovar, Maarten Nachtegaal, Jakob Grilj, Lars Mewes, Fabio G. Santomauro, Georgian Nedelcu, Dominik Kinschel, Gloria Capano
Publikováno v:
Structural Dynamics, Vol 4, Iss 4, Pp 044002-044002-11 (2017)
Structural Dynamics
Structural Dynamics, 4 (4)
Structural Dynamics
Structural Dynamics, 4 (4)
We report on an element-selective study of the fate of charge carriers in photoexcited inorganic CsPbBr3 and CsPb(ClBr)3 perovskite nanocrystals in toluene solutions using time-resolved X-ray absorption spectroscopy with 80 ps time resolution. Probin