Results 41 to 50 of about 24,704 (311)

High efficient room temperature phosphorescent materials constructed with methylene molecular configuration

open access: yesFrontiers in Chemistry, 2022
In this work, we have investigated several pure organic room temperature phosphorescent materials with donor-methylene acceptor configurations with relatively different quantum efficiency.
Jian Wang
doaj   +1 more source

Ultralong phosphorescence cellulose with excellent anti-bacterial, water-resistant and ease-to-process performance

open access: yesNature Communications, 2022
Organic room-temperature phosphorescence (RTP) materials often suffer from poor processability because of their crystalline or cross-linked nature.
Xin Zhang   +5 more
doaj   +1 more source

Phosphorescent perylene imides. [PDF]

open access: yes, 2012
Asymmetrically substituted perylene imide derivatives PIa and PIx display phosphorescence in glassy matrices at 77 K. The lifetime is 49.0 ms for PIa and 13.5 ms for PIx.
Böck, Bernd   +3 more
core   +1 more source

Room Temperature Phosphorescence of Chlorine Doped Carbon Nitride Dots

open access: yesFrontiers in Chemistry, 2022
Metal free room temperature phosphorescent materials have been the subject of considerable attention due to their potential applications in optoelectronic devices sensing, and security and safety signage.
Khemnath Patir   +2 more
doaj   +1 more source

Conjugatable water-soluble Pt(ii) and Pd(ii) porphyrin complexes: Novel nano- and molecular probes for optical oxygen tension measurement in tissue engineering [PDF]

open access: yes, 2014
Measurement of oxygen tension in compressed collagen sheets was performed using matrix-embedded optical oxygen sensors based on platinum(II) and palladium(II) porphyrins supported on polyacrylamide nanoparticles.
Athanasiadis, A.   +8 more
core   +1 more source

Boosting the efficiency of organic persistent room-temperature phosphorescence by intramolecular triplet-triplet energy transfer

open access: yesNature Communications, 2019
The potential of organic materials with persistent room-temperature phosphorescence for high-tech application is limited by their low efficiency. Here, the authors report a strategy to enhance persistent room-temperature phosphorescence efficiency via ...
Weijun Zhao   +7 more
doaj   +1 more source

Persistent luminescence in Eu2+-doped compounds : a review [PDF]

open access: yes, 2010
In 1996, Matsuzawa et al. reported on the extremely long-lasting afterglow of SrAl2O4:Eu2+ codoped with Dy3+ ions, which was more than 10-times brighter than the previously widely used ZnS:Cu,Co.
Poelman, Dirk   +2 more
core   +3 more sources

Near-IR Phosphorescence of Iridium(III) Corroles at Ambient Temperature [PDF]

open access: yes, 2010
The photophysical properties of Ir(III) corroles differ from those of phosphorescent porphyrin complexes, cyclometalated and polyimine Ir(III) compounds, and other luminescent metallocorroles.
Durrell, Alec C.   +4 more
core   +2 more sources

Amplified singlet oxygen generation in metallated-porphyrin doped conjugated polymer nanoparticles [PDF]

open access: yes, 2018
We report on the mechanism and efficiencies of singlet oxygen O2(1Δg) generation of nanoparticles (NP) of the conjugated polymer (CP) poly(9,9-dioctylfluorene-alt-benzothiadiazole) (F8BT) doped with platinum octaethylporphyrin (PtOEP) suspended in water.
Chesta, Carlos Alberto   +7 more
core   +2 more sources

Dual-light emitting 3D encryption with printable fluorescent-phosphorescent metal-organic frameworks

open access: yesLight: Science & Applications, 2023
Optical encryption technologies based on room-temperature light-emitting materials are of considerable interest. Herein, we present three-dimensional (3D) printable dual-light-emitting materials for high-performance optical pattern encryption.
Jin Woo Oh   +15 more
doaj   +1 more source

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