Results 31 to 40 of about 225,086 (287)

Deciphering mechanism of excited state reactivity by spectroscopic methods

Journal of Photochemistry and Photobiology, 2023
The Feature highlights Electron Paramagnetic Resonance (EPR) spectroscopy as an indispensable tool to understand the excited state reactivity of organic molecules.
Sarvar Aminovich Rakhimov, Malcolm D.E. Forbes, Jayaraman Sivaguru   +2 more
doaj   +1 more source

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

Advanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, Patipan Sukpoonprom, Sarah Fearn, Edoardo Angela, Matilde Brunetta, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Davide Nodari, Martyn A. McLachlan, Piers R. F. Barnes, Artem A. Bakulin, Nicholas J. Long, Nicola Gasparini   +16 more
wiley   +1 more source

Continuous-wave electron paramagnetic resonance (CW-EPR) for studying structure-function relationships in a Cu-containing nitrite reductase and a Mo-containing aldehyde oxidoreductase

Journal of Magnetic Resonance Open, 2023
Transition metal ion-containing oxidoreductases, which carry out long-distance electron transfer reactions, are a large family of metalloproteins that are widely distributed in nature.
Pablo J. González, María G. Rivas, Ana L. Pérez, Carlos D. Brondino   +3 more
doaj   +1 more source

Electron paramagnetic resonance imaging for real-time monitoring of Li-ion batteries

Nature Communications, 2015
Batteries for electrical storage are central to any future alternative energy paradigm. The ability to probe the redox mechanisms occurring at electrodes during their operation is essential to improve battery performances.
M. Sathiya, M. Sathiya, J. Leriche, Elodie Salager, Elodie Salager, D. Gourier, J. Tarascon, J. Tarascon, J. Tarascon, H. Vezin   +9 more
semanticscholar   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Pushing the sensitivity boundaries of X-band EPR cryoprobe using a fast microwave switch

Journal of Magnetic Resonance Open
We present a new design of an X-band EPR cryoprobe based on a fast microwave switch and a cryogenic low-noise microwave amplifier that are placed close to the sample in the same cryostat.
Uršulė Tarvydytė, Vidmantas Kalendra, Gediminas Usevičius, James O’Sullivan, Adam Brookfield, Alice M. Bowen, Jūras Banys, John J.L. Morton, Mantas Šimėnas   +8 more
doaj   +1 more source

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

Advanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan, Marie Le Pivert, Alireza Ranjbari, Diana Dragoe, Daniel Bahena‐Uribe, Christophe Colbeau‐Justin, Christian Herrero, Dorota Rutkowska‐Zbik, Johnny Deschamps, Hynd Remita   +9 more
wiley   +1 more source

Electron Paramagnetic Resonance Investigation of Radiation Effect on Certain Types of Drug Powders

Cumhuriyet Science Journal, 2018
In this study, gamma rays were applied to the sulfadimethoxine, pyrazinamide, and chloramphenicol in the dose range of 1-15 kilogray, in order todetect radiosensitivity of paramagnetic species, which are formed afterirradiation by electron paramagnetic ...
Kerem Sütçü, Şemsettin Osmanoğlu
doaj   +1 more source

Light‐Controlled Reversible Coassembly of Hybrid Functional Nanostructures

Advanced Functional Materials, EarlyView.
Light‐responsive hybrid nanostructures are formed by coassembling azobenzene‐ and PAH‐functionalized nanoparticles through reversible an tunable π interactions. The system enables tunable coupling between distinct components such as gold and magnetite or carbon nanotubes, producing switchable optical and magnetic properties under light and magnetic ...
Michal Sawczyk, Yanxiao Han, Soumyo Sen, Bartosz Smereczyński, Petr Král, Michał M. Wójcik   +5 more
wiley   +1 more source

Dating stalagmite from Caverna do Diabo (Devil´S Cave) by TL and EPR techniques

Anais da Academia Brasileira de Ciências
A cylindrical fragment of stalagmite from Caverna do Diabo, State of São Paulo, Brazil, has been studied and dated by thermoluminescence and electron paramagnetic resonance techniques.
SHIGUEO WATANABE, NILO F. CANO, T.K. GUNDU RAO, BETZABEL N. SILVA-CARRERA, LUCAS S. CARMO, ANTONIO J.A. QUINA, ROSELI F. GENNARI, CASIMIRO S. MUNITA, JORGE S. AYALA-ARENAS, BRUNO G. FERNANDES   +9 more
doaj   +1 more source