Results 71 to 80 of about 9,434 (244)

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  

Bypassing Pre‐Photoactivation in High‐Barrier Polyamide for Robust and Scalable Organic Persistent Luminescence

Advanced Science, EarlyView.
A universal paradigm resolves the trade‐off between ambient stability and barrier properties in organic persistent luminescent (OPL) polymers. By interlocking chromophores within a high‐barrier MXD6 matrix, we achieved no Pre‐photoactivation OPLs with exceptional long‐term stability in water.
Yunlong Yang, Sha Liu, Shilin Bo, Longming Jin, Baijun Tang, Zhiying Guo, Chengtao Gao, Xionggang Wang, Yuejun Liu, Qiang Zheng, Zi Liang Wu   +10 more
wiley   +1 more source

Efficient Polaron Recombination and Fast Energy Transfer in a Deep Blue Phosphorescent Pt(II) Complex via Covalently Fused p‐Type Host

Advanced Science, EarlyView.
Achieving high‐efficiency deep‐blue phosphorescent OLEDs is limited by intermolecular kinetic bottlenecks. We overcome this using a single‐molecule fused emitter architecture, Pt‐SP‐tCz, combining a p‐type host and Pt(II) dopant. This design enables zero‐radius intramolecular energy transfer (ZRIET) and a novel ZETPLEX mechanism.
You Na Song, Bubae Park, Garam Han, Eun Bi Kim, Junseop Lim, Wan Pyo Hong, Sunwoo Kang, Jae‐Min Kim, Hyung Youn Oh, Taekyung Kim   +9 more
wiley   +1 more source

Au(I) Complex With an Abnormal Carbene Ligand Shows Anti‐Kasha Dual Photoluminescence Emission

Angewandte Chemie, EarlyView.
Incorporation of an abnormal N‐heterocyclic carbene into a heteroleptic linear Au(I) complex induces anti‐Kasha dual emission responsive to biologically relevant phenyl sulfate. ABSTRACT We report the first photoactive linear Au(I) complex with an abnormal N‐heterocyclic carbene (aNHC) ligand, Au(aIm)(Cz).
Natesan Mannangatti Rajendran, Seung Beom Cheon, Jungbin Shin, Ye Bin Jang, Taeyoon Kim, Youngmin You   +5 more
wiley   +2 more sources

D–A Type Perylene Micelles With Synergistic Charge/Energy Transfer for Dual‐Path ROS Generation and Enhanced Photocatalysis

Advanced Science, EarlyView.
Dual‐state activation of singlet and triplet excitons is achieved in perylene‐based nanomicelles via donor engineering. By synergistically pairing charge transfer with energy transfer pathways, while concurrently enabling pollutant pre‐enrichment, this strategy establishes spatial coupling between efficient ROS generation and rapid mineralization ...
Chenfan Xie, Jin Gao, Guan Wang, Xinyue Huang, Xinyi Hu, Lijun Zhu, Liujun Yang, Hua Li, Jianmei Lu   +8 more
wiley   +1 more source

Energy Transfer‐Mediated Magnetoluminescence of an Octahedral MnII Complex Ligated With Bis(Diphenylphosphino)Methane Dioxide

Angewandte Chemie, EarlyView.
Energy‐transfer‐mediated magnetoluminescence of paramagnetic transition metal complexes: dope solids of an octahedral MnII complex into the corresponding ZnII complex exhibited a pronounced magnetic field response of emission spectra under the application of magnetic fields.
Asato Mizuno, Takuto Mibu, Ryota Matsuoka, Takema Hikawa, Shojiro Kimura, Tetsuro Kusamoto   +5 more
wiley   +2 more sources

Multiresponsive Color‐Tunable Phosphorescence With Matrix‐Confined Clusters

Aggregate
Ultralong organic phosphorescence (UOP) materials have garnered significant interest for applications in advanced optical recording and information encryption.
Lihui Hou, Ting Wang, Siufung Yu, Xuhui Xu, Xue Yu   +4 more
doaj   +1 more source

Tunable Reversible Photochromic Ultralong Organic Phosphorescence via a Universal Phenylpyridine Noncovalent Assembly Strategy

Advanced Science, EarlyView.
A concise supramolecular assembly strategy using α‐cyclodextrin and phenylpyridine derivatives affords dual‐functional materials with switchable multicolor photochromism and tunable ultralong organic phosphorescence, offering new platforms for various photonic applications. ABSTRACT Supramolecular photochromic materials capable of reversible alteration
Xue Bai, Renliang Wang, Hong‐Jin Xue, Zhuofan Jiang, Shuo Yang, Chiming Li, Yanqing Ge, Caihong Liu, Xian‐Yin Dai   +8 more
wiley   +1 more source

Excited‐State Antiaromaticity in Nonbenzenoid Aromatics: Examining the Dynamics of Intramolecular Proton Transfer With a Small Driving Force

Angewandte Chemie, EarlyView.
The excited‐state antiaromaticity of hydroxybenzotropyliums (HBTs) can be tuned through substituent effects to bring the aromatic ‘enol’ (E) and keto (K) tautomers close in energy. This leads to abnormally slow excited‐state proton transfer (on the ns timescale), giving rise to dual fluorescence emission and weak photoacidity.
Promeet K. Saha, Charlotte A. Bardsley, Hector G. Miranda‐Salinas, Daniel Crane, Rabia Ayub, Andrew P. Monkman, Paul R. McGonigal   +6 more
wiley   +2 more sources

Stimulating Chiral Selective Expression of Room Temperature Phosphorescence for Chirality Recognition

Advanced Science
Chiral recognition is crucial for applications in chiral purity assessment and biomedical fields. However, achieving chiral recognition through visible room temperature phosphorescence remains challenging.
Zhisheng Gao, Xin Yan, Qi Jia, Jingru Zhang, Guangyao Guo, Huanhuan Li, Hui Li, Gaozhan Xie, Ye Tao, Runfeng Chen   +9 more
doaj   +1 more source