Results 101 to 110 of about 4,581,317 (388)

Reversible excited state electron transfer in an acceptor–acceptor hetero dyad [PDF]

Chemical Science
In this manuscript, we create a new hetero dyad consisting of two electron acceptors with nearly isoenergetic HOMO and LUMO levels, namely perylene diimide (PDI) and aza dioxa triangulenium (ADOTA).
Jesper Dahl Jensen, Shayan Louie, Yanmei He, Junsheng Chen, Colin Nuckolls, Bo W. Laursen   +5 more
openaire   +2 more sources

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Stable Ultrabroad‐Absorbing Radical Achieves Efficient NIR‐II Photothermal Conversion via Facile Synthesis

Advanced Science
Inspired by the electron‐withdrawing ability of nitroxide radicals, a novel open‐shell material, EDOT‐TPAO4 is reported, synthesized via one‐step demethylation and oxidation of its closed‐shell precursor, EDOT‐TPAOMe4.
Haozhe Zhang, Yuhang Yang, Jiaxing Huang, Luotai Chen, Yongyan Cui, Zhiyuan Lu, Shishi Shen, Zixi Liu, Hongwei Song, Zhuoran Kuang, Qianxi Dang, Yuan Li   +11 more
doaj   +1 more source

Tracking Photoinduced Charge Redistribution in a Cu(I) Diimine Donor–Bridge–Acceptor System with Time-Resolved Infrared Spectroscopy

Photochem
Understanding electron density migration along excited-state pathways in photochemical systems is critical for optimizing solar energy conversion processes.
Sean A. Roget, Wade C. Henke, Maxwell Taub, Pyosang Kim, Jonathan T. Yarranton, Xiaosong Li, Karen L. Mulfort, Lin X. Chen   +7 more
doaj   +1 more source

Two-electron transfer stabilized by excited-state aromatization

Nature Communications, 2019
Excited state aromaticity gives rise to unique photophysical properties which may aid the design of functional photoactive materials. Here, the authors spectroscopically characterize an acceptor-donor-acceptor system featuring a two-electron transfer ...
Jinseok Kim, Juwon Oh, Seongchul Park, Jose L. Zafra, Justin R. DeFrancisco, David Casanova, Manho Lim, John D. Tovar, Juan Casado, Dongho Kim   +9 more
doaj   +1 more source

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

Theory and Calculation of the Reorganization Energy of Electron Transfer at Liquid/Liquid Interface

Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017
A description of the theoretical of the reorganization energies have been described  according to the outer-sphere Marcus model .It  is a given expression according this model unable to evaluate the reorganization energy for electron transfer at liquid /
Hadi Jabbar Al-Agealy, Adil Ali Al-Saadi
doaj  

Chloramphenicol mediates superoxide production in Photosystem II and enhances its photodamage in isolated membrane particles

Frontiers in Plant Science, 2016
Chloramphenicol is an inhibitor of protein synthesis, which is frequently used to decouple photodamage and protein synthesis dependent repair of Photosystem II during the process of photoinhibition.
Ateeq Ur Rehman, Sandeesha eKodru, Imre eVass   +2 more
doaj   +1 more source

Oxalates as Activating Groups for Alcohols in Visible Light Photoredox Catalysis: Formation of Quaternary Centers by Redox-Neutral Fragment Coupling. [PDF]

, 2015
Alkyl oxalates are new bench-stable alcohol-activating groups for radical generation under visible light photoredox conditions. Using these precursors, the first net redox-neutral coupling of tertiary and secondary alcohols with electron-deficient ...
Jamison, Christopher R, MacMillan, David WC, Nawrat, Christopher C, Overman, Larry E, Slutskyy, Yuriy   +4 more
core  

Photoactivation of NV Centers in Diamond via Continuous Wave Laser Illumination of Shallow As‐Implanted Nitrogen

Advanced Functional Materials, EarlyView.
This study demonstrates an alternative method of creating charge‐stable negatively charged nitrogen vacancy (NV−) centers close to the diamond surface without high‐temperature annealing. By illuminating nitrogen‐implanted regions with a continuous‐wave 405 nm laser, NV− centers are induced, exhibiting electron spin coherence properties suitable for ...
Jens Fuhrmann, Christoph Findler, Michael Olney‐Fraser, Lev Kazak, Fedor Jelezko   +4 more
wiley   +1 more source