Oxygen-catalysed sequential singlet fission

Autor: Nikolaus Wollscheid, J. Luis Pérez Lustres, Oskar Kefer, Sebastian Hahn, Victor Brosius, Uwe H. F. Bunz, Marcus Motzkus, Tiago Buckup

Publikováno v: Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)

Singlet fission is a promising carrier multiplication process, where a singlet exciton is split in two triplet states. Here the authors propose an oxygen-assisted two-step mechanism for singlet fission accounting for ~ 40% triplet quantum yield in di

Externí odkaz: https://doaj.org/article/5d987aed9e404a6291d228c6d0ba0d4a

Bio-orthogonal Red and Far-Red Fluorogenic Probes for Wash-Free Live-Cell and Super-resolution Microscopy

Autor: Felix Braun, Richard Wombacher, Frank Rominger, Aleksandra Radenovic, Marvin Busch, Philipp Werther, Edward A. Lemke, Antoni J. Gralak, Klaus Yserentant, Weijie Chi, Michael J. Ziegler, Zhibin Zhang, Dirk-Peter Herten, Christoph Mayer, Xiaogang Liu, Kristin S. Grußmayer, Vytautas Navikas, Miao Yu, Tiago Buckup

Publikováno v: ACS Central Science
ACS Central Science, Vol 7, Iss 9, Pp 1561-1571 (2021)
ACS Central Science, 7(9)

Small-molecule fluorophores enable the observation of biomolecules in their native context with fluorescence microscopy. Specific labeling via bio-orthogonal tetrazine chemistry combines minimal label size with rapid labeling kinetics. At the same ti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b166cfac998c77d190c360c8a821aa6
https://doi.org/10.1021/acscentsci.1c00703

Ultrafast Singlet Fission and Intersystem Crossing in Halogenated Tetraazaperopyrenes

Autor: Vaishnavi J. Rao, Sebastian Höfener, Felix J. Berger, Benjamin Günther, Marcus Motzkus, Lutz H. Gade, Tiago Buckup, Nikolaus Wollscheid, Jana Zaumseil, J. Luis Pérez Lustres

Publikováno v: The Journal of Physical Chemistry A. 124:7857-7868

Charge carrier multiplication via singlet fission into two triplet states has the potential to increase efficiencies of photovoltaics by one-third due to the reduction of thermalization losses. In the present work, we investigate tetraazaperopyrenes,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c3e59e0d7b94ae92896d4fec1c1d2bb
https://doi.org/10.1021/acs.jpca.0c04852

Acousto-optic modulator based dispersion scan for phase characterization and shaping of femtosecond mid-infrared pulses

Autor: Giulio Cerullo, Niklas Müller, Cristian Manzoni, Tiago Buckup, Florian Nicolai

Publikováno v: Optics express. 29(13)

Compression, shaping and characterization of broadband mid-infrared (MIR) pulses based on an acousto-optic modulator (AOM) pulse shaper is presented. Characterization of the spectral phase is achieved by an AOM-shaper based implementation of a disper

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1697a29941bccfe9c72880416a499444
https://pubmed.ncbi.nlm.nih.gov/34266173

Sub-picosecond C = C bond photo-isomerization: evidence for the role of excited state mixing

Autor: Damianos Agathangelou, María del Carmen Marín, Massimo Olivucci, Jérémie Léonard, Partha Pratim Roy, Nicolas Ferré, Stefan Haacke, Tiago Buckup

Publikováno v: Comptes Rendus. Physique
Comptes Rendus. Physique, 2021, Physics of ultra-fast phenomena, pp.1-28. ⟨10.5802/crphys.41⟩
Comptes Rendus. Physique, Académie des sciences (Paris), 2021, Physics of ultra-fast phenomena, pp.1-28. ⟨10.5802/crphys.41⟩

International audience; La photo-isomérisation sub-picoseconde est la principale réaction initiant la conversion d’énergie dans les protéines de rétinal, si bien qu’elle fait l’objet de travaux théoriques et expérimentaux approfondis dep

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::181c43dbd33630d591b639913f20613d
https://hal-amu.archives-ouvertes.fr/hal-03188492/document