Results 141 to 150 of about 135,105 (302)

Structural and Functional Stability of Strontium Aluminate-Based Luminescent Composites After 15 Years of Natural Weathering (Indoors and Outdoors). [PDF]

Polymers (Basel)
Rodríguez-González MÁ, Díaz-Rodríguez N, Rubio-Carrizo M, Rubio F.   +3 more
europepmc   +1 more source

Tailoring Amine Substitution in Fluorene and Dibenzothiophene: A Molecular Strategy for Ultralong Organic Phosphorescence

Advanced Optical Materials, EarlyView.
Tailored amine substitution in fluorene and dibenzothiophene derivatives enables systematic control of excited‐state properties and triplet population. Combined photophysical studies, TD‐DFT calculations and time‐resolved EPR reveal how charge‐transfer character, sulfur‐induced spin–orbit coupling and triplet manifold engineering cooperate to promote ...
Francesco Ruighi, Gianluca Accorsi, Eduardo Fabiano, Lorenzo Franco, Alessandro Agostini, Samuel Zatta, Leonard E. Cleve, Federica Angilè, Francesco Paolo Fanizzi, Gustavo Fernández, Agostina L. Capodilupo   +10 more
wiley   +1 more source

New Bright Luminescent Metal-Organic Frameworks Based on Heterometallic Gadolinium and Terbium Chloroterephthalates for Fingerprinting and Heavy-Metal Detection. [PDF]

Molecules
Butorlin OS, Petrova AS, Mikhaltsov AE, Ryazantsev MN, Bogachev NA, Skripkin MY, Mereshchenko AS.   +6 more
europepmc   +1 more source

Regioselective π‐Extension of Helical PAHs: Tuning Energy Gaps and Excited‐State Dynamics Directed by Clar's Sextet Migration

Advanced Optical Materials, EarlyView.
Central and terminal ring fusions of per‐peri‐perbenzo[7]helicene (PB[7]H) yield novel helical polycyclic aromatic hydrocarbons (HPAHs). The migration of Clar's aromatic sextets governs the inner‐rim stiffness. This topology‐directed strategy bridges the discrete optical gaps of homologous series. Transition moment density (TMD) analysis visualizes the
Zhibo Liu, Zheng Zhang, Hikaru Sotome, Takashi Hirose   +3 more
wiley   +1 more source

Dolomitic Microfossil Preservation in a Cryogenian Microbial Reef, Arkaroola (South Australia). [PDF]

Geobiology
Champenois F, Corkeron ML, George AD.
europepmc   +1 more source

Revealing Mechanofluorochromism and Intricate Long‐lived Decay Pathways in Keto‐Coumarin‐Based Molecular Crystals

Advanced Optical Materials, EarlyView.
Donor–acceptor organic emissive materials show great promise in cutting‐edge optical applications. Herein, the photophysical properties of two keto‐coumarin organic materials are studied in detail. Both show mechanofluorochromism, but a diphenylamine donor derivative exhibits intricate decay pathways in the crystal form, including decays ranging from ...
Peter W. McDonald, Subhadeep Das, Arnab Mandal, Gilles Clavier, Clémence Allain, Abhijit Patra, Rémi Métivier   +6 more
wiley   +1 more source

Tailoring Photonic Landscape: Nanoengineering Empowers NIR-II Lanthanide Luminescence for Versatile Biomedical Applications. [PDF]

Small Methods
Chen ZH, Cheng Z, Xue Y, Zhang H.
europepmc   +1 more source

A Layered Two‐Dimensional Hydrogen‐Bonded Organic Framework Based on 2,5,8,11‐Tetrakis(4‐Carboxyphenyl)Perylene Diimide: Structural Nature, Optical and Photophysical Properties

Advanced Optical Materials, EarlyView.
A novel hydrogen‐bonded organic framework (HOF) based on perylene diimide (PDI) is synthesized, structurally and spectroscopically characterized. Its photophysical behavior highlights how supramolecular organizations govern the optical properties, including emission from monomers, aggregates, and excimer‐like species. Structural transformations induced
Mario de la Hoz Tomás, Taito Hashimoto, Boiko Cohen, Yuzuki Murata, Kazuki Shiga, Ryota Hanyu, Ryusei Oketani, Norimitsu Tohnai, Ichiro Hisaki, Abderrazzak Douhal   +9 more
wiley   +1 more source

Novel {Pb₆} wheels based zeolite-type metal-organic framework for wide temperature range and high sensitivity of luminescent thermometer. [PDF]

Smart Mol
Li YN, Sun N, Wu YL, Yang XG, Yan YT, Yang GP, Wang YY.   +6 more
europepmc   +1 more source

Nanomaterial‐Incorporated Nonlinear Optical Waveguides Explored With All‐Fiber Multiphoton Polymerization

Advanced Optical Materials, EarlyView.
Nonlinear waveguides are fabricated via an all‐fiber‐based multiphoton polymerization approach incorporating upconversion nanoparticles (UCNPs), which enable both multiphoton absorption at telecommunication wavelengths and nonlinear saturable absorption operation.
Bowon Ryu, Seungyong Shin, Myungjin Kang, Young Joon Moon, Jihoon Kyhm, Hyowon Moon, Ho Seong Jang, Yong‐Won Song   +7 more
wiley   +1 more source