Results 171 to 180 of about 1,773,113 (206)

Room‐Temperature Multiple Phosphorescence from Functionalized Corannulenes: Temperature Sensing and Afterglow Organic Light‐Emitting Diode** [PDF]

Angewandte Chemie - International Edition, 2023
Corannulene-derived materials have been extensively explored in energy storage and solar cells, but, however, are rarely documented as emitters in light-emitting sensors and organic light-emitting diodes (OLEDs), due to low exciton utilization.
Eli Zysman-Colman, Tao Wang
exaly   +3 more sources

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Sonication‐Responsive Organic Afterglow Emulsions

Advanced Functional Materials, 2023
AbstractIn contrast to their fluorescence counterparts, stimuli‐responsive organic afterglow materials display distinct advantages to function normally in the presence of strong fluorescence background. However, most of the stimuli‐responsive afterglow materials can only work in their solid states with those in aqueous medium being rarely reported.
Xinjian Deng, Ju Huang, Jiuyang Li, Guangming Wang, Kaka Zhang   +4 more
openaire   +1 more source

Afterglow Organic Light‐Emitting Diode

Advanced Materials, 2015
An afterglow organic light-emitting diode (OLED) that displays electroluminescence with long transient decay after it is turned off is demonstrated. This OLED exhibits blue and green dual emission originating from fluorescence and phosphorescence, respectively. A phosphorescence lifetime of 4.3 s is achieved.
Ryota, Kabe, Naoto, Notsuka, Kou, Yoshida, Chihaya, Adachi   +3 more
openaire   +2 more sources

Phosphorescence Energy Transfer: Ambient Afterglow Fluorescence from Water‐Processable and Purely Organic Dyes via Delayed Sensitization

Angewandte Chemie - International Edition, 2020
Ambient afterglow luminescence from metal‐free organic chromophores would provide a promising alternative to the well‐explored inorganic phosphors. However, the realization of air‐stable and solution‐processable organic afterglow systems with long‐lived ...
Suman Kuila, Subi George
exaly   +2 more sources

Host Surface-Induced Excitation Wavelength-Dependent Organic Afterglow

Journal of the American Chemical Society, 2023
The design and construction of organic afterglow materials is an attractive but formidably challenging task due to the low intersystem crossing efficiency and nonradiative decay. Here, we developed a host surface-induced strategy to achieve excitation wavelength-dependent (Ex-De) afterglow emission through a facile dropping process.
Zhongwei Man, Zheng Lv, Zhenzhen Xu, Jingping He, Qing Liao, Yongan Yang, Jiannian Yao, Hongbing Fu   +7 more
openaire   +2 more sources

Organic Afterglow Phosphors

2017
Compared to inorganic materials, organic optoelectronic counterparts of carbon-based small molecules or polymers prepared by various organic and polymeric synthetic methods hold important and advisable features including reduced manufacturing costs, versatility of molecular structures and properties, and compatibility with a vast range of substrates ...
Suli Wu, Zaifa Pan, Runfeng Chen, Xiaogang Liu   +3 more
openaire   +1 more source

Excited State Modulation for Organic Afterglow: Materials and Applications

Advanced Materials, 2016
Organic afterglow materials, developed recently by breaking through the difficulties in modulating ultrafast‐decayed excited states, exhibit ultralong‐lived emission for persistent luminescence with lifetimes of several orders of magnitude longer than traditional fluorescent and phosphorescent emissions at room temperature. Their exceptional properties,
Shen, Xu, Runfeng, Chen, Chao, Zheng, Wei, Huang   +3 more
openaire   +2 more sources

Intense Organic Afterglow Enabled by Molecular Engineering in Dopant-Matrix Systems

ACS Applied Materials & Interfaces, 2021
We report intense dopant-matrix afterglow systems with an afterglow efficiency (ΦAG) of 47% and an afterglow lifetime (τAG) of 1.3 s. Luminescent difluoroboron β-diketonate (BF2bdk) dopants and their deuterated counterparts are designed with naphthalene and carboxylic acid groups. After doping into benzoic acid (BA) matrices, room-temperature afterglow
Xun Li, Guangming Wang, Jiuyang Li, Yan Sun, Xinjian Deng, Kaka Zhang   +5 more
openaire   +2 more sources

Organic full-color narrowband afterglow

Materials Horizons
Developing a facile and universally applicable strategy to achieve organic full-color narrowband afterglow (OFNA) is highly desirable, as it meets the strategic demands for low-cost and high-color-purity displays in flexible electronics.
Yincai Xu, Yufeng Xue, Le Mei, Zongliang Xie, Zhu Wu, Zheng Yin, Xian-kai Chen, Yue Wang, Bin Liu   +8 more
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The organic ligands coordinated long afterglow phosphor

Materials Letters, 2007
Abstract The Eu 2+ activated strontium aluminates codoped by Dy 3+ coordinated by different ligands were synthesized. The coordination of ligands with SAO-ED was characterized by FT-IR spectra and XPS. The introduction of organic ligands didn't change the excitation and emission spectra of SAO-ED, and this was proved by spectrophotometer (F-4500 FL)
Suli Wu, Shufen Zhang, Yu Liu, Jinzong Yang   +3 more
openaire   +1 more source