Results 1 to 10 of about 40,474 (283)

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

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

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

Radical-enhanced photo-activated ultralong organic phosphorescence [PDF]

open access: yesNature Communications
Stimuli-responsive ultralong room temperature phosphorescence materials have attracted great attention due to their great potential in a wide variety of advanced applications.
Yuefei Wang   +9 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

Two‐Photon Excited Near‐Infrared Phosphorescence Based on Secondary Supramolecular Confinement

open access: yesAdvanced Science, 2022
Organic phosphorescence materials have received wide attention in bioimaging for bio‐low toxicity and large Stokes. Herein, a design strategy to achieve near‐infrared (NIR) excitation and emission of organic room‐temperature phosphorescence through two ...
Xin‐Kun Ma   +4 more
doaj   +1 more source

Aggregation-regulated room-temperature phosphorescence materials with multi-mode emission, adjustable excitation-dependence and visible-light excitation

open access: yesNature Communications, 2023
Constructing room-temperature phosphorescent materials with multiple emission and special excitation modes is fascinating and challenging for practical applications.
Jingxuan You   +8 more
doaj   +1 more source

Room Temperature Phosphorescence Emission From Multi-States

open access: yesFrontiers in Chemistry, 2022
Organic room temperature phosphorescence (RTP) materials have received considerable attention due to their fascinating photophysical properties. During the past decade, various organic luminogens exhibiting RTP emission in solid states were reported ...
Xiaofeng Zhang   +5 more
doaj   +1 more source

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