Results 21 to 30 of about 90,891 (346)

Applications and Prospects for Triplet–Triplet Annihilation Photon Upconversion

CHIMIA, 2018
Triplet–triplet annihilation photon upconversion (TTA-UC) is a photophysical process in which the energy of two photons are combined into a single photon of higher energy.
Martin P. Rauch, Robert R. Knowles
doaj   +1 more source

Observation of a Solid-State-Induced Thermally Populated Spin-Triplet State in Radical Regioisomers

, 2019
High-spin organic polyradicals are commonly observed due to intramolecular spin–spin coupling, whereas high-spin monoradicals are rarely obtained and hard to be predicted.
Xiaoguang Hu (8097632), Hanjiao Chen (4867063), Yonghao Zheng (1671904), Maosheng Miao (1728712), Lei Zhao (144153)   +4 more
core   +6 more sources

Optical and EPR Detection of a Triplet Ground State Phenyl Nitrenium Ion

, 2023
Nitrenium ions are important reactive intermediates participating in synthetic chemistry and biological processes. Phenyl nitrenium ions (Ph-NH+) typically have closed-shell singlet ground states with large singlet–triplet energy gaps, while little is ...
Lili, Du, Yunfan, Qiu, Sarah, Cady, David, Phillips, Arthur, Winter   +4 more
core   +1 more source

DETERMINATION OF THE ACCEPTOR MOLECULES CONCENTRATION IN THE TRIPLET STATE ON EXCITATION OF DONOR-ACCEPTOR PAIRS BY RECURRENT PULSES

Наука. Инновации. Технологии, 2022
Analysis of population and decay of excited states play an important role in the study of photophysical processes. Information on the accumulation of organic molecules in triplet state is contained in the phosphorescence buildup kinetics. The possibility
Natal’ya Vladimirovna Zhdanova, Andrey Valer’yevich Avdeev   +1 more
doaj  

Barrier-free reverse-intersystem crossing in organic molecules by strong light-matter coupling

Nature Communications, 2021
Strong coupling of organic materials with optical cavities allows to manipulate the rate of energy transfer between their internal states. Here, the authors show a hybrid state of singlet character with energy lower than the triplet state, and a flow of ...
Yi Yu, Suman Mallick, Mao Wang, Karl Börjesson   +3 more
doaj   +1 more source

Magnetically induced current densities in phenylenes in the ground and lowest lying triplet excited states [PDF]

Kragujevac Journal of Science
Magnetically induced current densities in the lowest lying singlet and triplet states of a series of phenylene molecules were examined at the B3LYP/lanl2DZ level of theory. Previous findings have shown that in the ground singlet state, phenylenes exhibit
Đorđević Slađana, Rakonjac Jovana, Radenković Slavko   +2 more
doaj   +1 more source

Shadowed triplet pairings in Hund's metals with spin-orbit coupling

Physical Review Research, 2021
Hund's coupling in multiorbital systems allows for the possibility of even-parity orbital-antisymmetric spin-triplet pairing, which can be stabilized by spin-orbit coupling (SOC).
Jonathan Clepkens, Austin W. Lindquist, Hae-Young Kee   +2 more
doaj   +1 more source

When the Triplet State Doesn't Matter: Insights into Its Impact on <i>V</i> _OC. [PDF]

ACS Energy Lett
Shadabroo MS, Tokmoldin N, Shukla A, Patterson A, Melody TM, Alqahtani O, Collins BA, Neher D, Shoaee S.   +8 more
europepmc   +2 more sources

Spin statistics for triplet-triplet annihilation upconversion: exchange coupling, intermolecular orientation and reverse intersystem crossing

, 2021
Triplet-triplet annihilation upconversion (TTA-UC) has great potential for significantly improving the light harvesting capabilities of photovoltaic cells, as well as being sought after for biomedical applications.
Nobuhiro , Yanai, David, Bossanyi, Yoichi, Sasaki, Nobuo, Kimizuka, Jenny, Clark, Dimitri, Chekulaev   +5 more
core   +1 more source

Unraveling the mechanisms of triplet state formation in a heavy-atom free photosensitizer. [PDF]

Chem Sci
Fay TP, Limmer DT.
europepmc   +3 more sources