Results 1 to 10 of about 9,290 (153)

Reversible color switching of bright phosphorescence in purely organic materials for advanced data encryption [PDF]

open access: yesNature Communications
Purely organic phosphors have emerged as promising materials for various optical applications. Herein, we report a single-component organic phosphorescent crystal, 1,1′-(2,5-dibromoterephthaloyl)bis(glutarimide) (BrGlu), which exhibits fully reversible ...
Jung-Moo Heo   +8 more
doaj   +2 more sources

Vertical substitution strategy to enable cooperation between spin–orbit coupling and transition dipoles for organic phosphorescence [PDF]

open access: yesNature Communications
The emission from organic molecules can be broadly classified as fluorescence or phosphorescence, and it is used in a wide range of applications from optoelectronics to bioimaging.
Kikuya Hayashi   +3 more
doaj   +2 more sources

Sensitive mechanical compression-patterned phosphorescence in the rubbery state of cross-linked polymer network [PDF]

open access: yesNature Communications
The molecular motion of polymer chains inevitably quenches phosphorescence at temperatures higher than the glass transition temperature (T g). Therefore, modulating phosphorescence at relatively high temperatures presents a significant challenge. Herein,
Zhen Li   +12 more
doaj   +2 more sources

Nonaromatic polymer-deep eutectic solvent complexes with ultralong room-temperature and high-temperature phosphorescence [PDF]

open access: yesNature Communications
Ultralong organic phosphorescence (UOP) and especially high-temperature phosphorescence (HTP) are difficult to be achieved in pure organic nontraditional luminogens (NTLs).
Xuanshu Zhong   +9 more
doaj   +2 more sources

Polymer matrix drives thermal stimulation-caused dynamic phosphorescence in dispersed chromophores [PDF]

open access: yesNature Communications
Polymer matrix has been extensively explored for decades to achieve efficient room-temperature phosphorescence from dispersed chromophores. However, the impact of the polymer matrix on the optical characteristics of chromophores remains elusive.
Subhajit Ghosh   +7 more
doaj   +2 more sources

Phosphorescent supramolecular systems for medicine anticounterfeiting [PDF]

open access: yesNature Communications
Realizing reliable medicine anticounterfeiting with safe and robust materials remains a challenge. We address this issue by preparing a class of edible phosphorescent supramolecules (VB10@α/β-CDs) based on easily available α/β-cyclodextrins (α/β-CDs) and
Wen-Ting Wu   +6 more
doaj   +2 more sources

A direct observation of up-converted room-temperature phosphorescence in an anti-Kasha dopant-matrix system

open access: yesNature Communications, 2023
The emission maximum of phosphorescence is normally larger than that of fluorescence. Here, authors report up-converted room-temperature phosphorescence materials that emit from higher-lying triplet states with 3n-π* characters and large phosphorescence ...
Jiuyang Li   +6 more
doaj   +1 more source

A pilot study of the dynamics of tissue oxygenation in vivo using time-resolved phosphorescence imaging

open access: yesJournal of Innovative Optical Health Sciences, 2021
Oxygenation of tissues plays an important role in the development and progression of tumor to treatment effects. Method of metalloporphyrines phosphorescence quenching by oxygen is one of the ways to measure dynamics of the oxygen concentration in the ...
Natalia Kazachkina   +3 more
doaj   +1 more source

Photo-thermo-induced room-temperature phosphorescence through solid-state molecular motion

open access: yesNature Communications, 2022
The development of non-invasive, rapid responsive phosphorescence is highly desirable but has rarely been described. Herein, the authors designed and prepare a series of molecular rotors containing a room temperature phosphorescence active triazine core ...
Xing Wang Liu   +8 more
doaj   +1 more source

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