Results 21 to 30 of about 4,426,538 (221)

Switching Singlet Exciton to Triplet for Efficient Pure Organic Room-Temperature Phosphorescence by Rational Molecular Design [PDF]

open access: yes, 2023
The design and regulation of phosphor are attractive but challenging due to the spin-forbidden intersystem crossing (ISC) process. Here, a new perspective on the enhancement of ISC was proposed and demonstrated. Different from current strategies, the ISC
Xiang, Ma   +3 more
core   +2 more sources

Room-Temperature Phosphorescence of a Supercooled Liquid: Kinetic Stabilization by Desymmetrization [PDF]

open access: yes, 2021
Metal-free single component liquid, developed by desymmetrizing C2-symmetrical diketone, exhibits room-temperature phosphorescence (RTP) and phosphorescent thermochromism in air.
Takuji, Ogawa, Mao, Komura, Yosuke, Tani
core   +2 more sources

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

Efficient Room-Temperature Phosphorescence of Covalent Organic Frameworks through Covalent Halogen Doping [PDF]

open access: yes, 2022
Organic room-temperature phosphorescence, a spin-forbidden radiative process, has emerged as an interesting but rare phenomenon with multiple potential applications in optoelectronic devices, biosensing, and anticounterfeiting.
Cory, Ruchlin   +5 more
core   +2 more sources

Observation of Chiral-selective room-temperature phosphorescence enhancement via chirality-dependent energy transfer

open access: yesNature Communications, 2023
Despite increasing interest in organic room temperature phosphorescence, it can still be challenging to determine mechanism and develop practical applications.
Biao Chen, Wenhuan Huang, Guoqing Zhang
doaj   +1 more source

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

Room-Temperature Phosphorescence in the Amorphous State Enhanced by Copolymerization and Host–Guest Complexation

open access: yes, 2022
Organic room-temperature phosphorescence (RTP) has received much attention, and yet most organic RTP materials are in the crystalline state, limiting their wide applications.
Feihe Huang (1438840)   +4 more
core   +5 more sources

Modulating Room-Temperature Phosphorescence-To-Phosphorescence Mechanochromism by Halogen Exchange

open access: yesFrontiers in Chemistry, 2022
Modulating the stimulus-responsiveness of a luminescent crystal is challenging owing to the complex interdependent nature of its controlling factors, such as molecular structure, molecular conformation, crystal packing, optical properties, and ...
Yoshika Takewaki   +2 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

Liquid crystalline copper(i) complexes with bright room temperature phosphorescence [PDF]

open access: yes, 2020
Phosphorescence in the liquid crystal state with one of the highest quantum yield values, 42%, at room temperature is reported. This property is achieved with cyclic trinuclear copper(I) complexes prepared using 3,5-dimethyl-4-(trialkoxyphenyl)pyrazolate
Crespo, Olga   +5 more
core   +1 more source

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