Results 161 to 170 of about 2,030,406 (189)

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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Narrowband Organic Afterglow Materials Exhibiting 11.2 nm FWHM, 38% Phosphorescence Efficiency and 1.5 s Emission Lifetime Under Ambient Conditions.

Angewandte Chemie
Narrowband organic room-temperature phosphorescence (RTP) remains rare due to significant high-frequency vibronic coupling in T1→S0 electronic transition, where T1 and S0 represent the lowest triplet excited state and ground state, respectively. Here, we
Jialiang Jiang, Tengyue Wang, Zhe Mo, Yue Zhang, Yuanyuan Chen, Yuming Su, Kaka Zhang   +6 more
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Blue Organic Long Persistent Luminescence: A UV/Violet-Light-Excitable and Green/Red-Light-Erasable Donor-Sensitizer-Acceptor Organic Afterglow System.

Angewandte Chemie
We pioneered a donor-sensitizer-acceptor three-component system to devise organic long persistent luminescence (OLPL) materials, where the afterglow color is solely determined by sensitizer's emission color.
Wen Xia, Zi Ye, Guoyi Wu, Honghong Yao, Hongxin Gao, Biao Xu, Qianhui Chong, Kaka Zhang   +7 more
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Phosphorescent Calcium-Based Metal–Organic Framework with Second-Scale Long Afterglow

Inorganic Chemistry, 2021
Presented here is a calcium-based metal-organic framework (Ca-MOF) with obvious room temperature phosphorescence. Notably, a long afterglow can be observed by the naked eye and lasts about 4 s, which is mainly attributed to the unique framework structure of the Ca-MOF.
Dong-Fei Lu, Zhi-Wen Wang, Fei Wang, Jian Zhang   +3 more
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Color-Tunable Dual-Mode Organic Afterglow from Classical Aggregation-Caused Quenching Compounds for White-light-Manipulated Anti-Counterfeiting.

Angewandte Chemie, 2022
Color-tunable dual-mode organic afterglow excited by ultraviolet (UV) and white light was achieved from classical aggregation-caused quenching compounds for the first time.
Yaohui Liang, Chao Xu, Huaqing Zhang, Shiying Wu, Jian‐An Li, Yifan Yang, Z. Mao, Suilian Luo, Cong Liu, Guang Shi, F. Sun, Zhenguo Chi, Bingjia Xu   +12 more
semanticscholar   +1 more source

Highly‐Efficient Visible‐Light‐Excitable TADF‐Type Organic Afterglow Materials via Intramolecular Charge Transfer Technology

Advanced Optical Materials
We present the development of three distinct highly efficient visible‐light‐excitable afterglow systems based on thermally activated delayed fluorescence (TADF) mechanisms, employing an intramolecular charge transfer strategy.
Xun Li, Guangming Wang, Zi Ye, Biao Xu, Hongxin Gao, Kaka Zhang   +5 more
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Organic‐Inorganic Hybrid Ferroelectric and Antiferroelectric with Afterglow Emission

Angewandte Chemie
AbstractLuminescent ferroelectrics are holding exciting prospect for integrated photoelectronic devices due to potential light‐polarization interactions at electron scale. Integrating ferroelectricity and long‐lived afterglow emission in a single material would offer new possibilities for fundamental research and applications, however, related reports ...
Zhi‐Xu Zhang, He Wang, Hao‐Fei Ni, Na Wang, Chang‐Feng Wang, Pei‐Zhi Huang, Qiang‐Qiang Jia, Gele Teri, Da‐Wei Fu, Yujian Zhang, Zhongfu An, Yi Zhang   +11 more
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Exciton Dissociation and Recombination Afford Narrowband Organic Afterglow Through Efficient FRET

Advances in Materials
Organic afterglow with long‐persistent luminescence (LPL) after photoexcitation is highly attractive, but the realization of narrowband afterglow with small full‐width at half‐maximum (FWHM) is a huge challenge since it is intrinsically contradictory to ...
Jingyu Zhang, Wu‐You Wang, Yanfang Bian, Yike Wang, Xinchi Lu, Zhenli Guo, Chengxi Sun, Zecai Li, Xiao Zhang, Jie Yuan, Ye Tao, Wei Huang, Runfeng Chen   +12 more
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Unusual room temperature afterglow in some crystalline organic compounds

Nature, 1978
STRONG room temperature phosphorescence studies of certain doped solid systems1–4 have shown that the characteristic phosphorescence peak wavelengths agree with those established for the corresponding dopants dissolved in 77K systems; the room temperature lifetimes being smaller by a factor of 1.5–2, depending upon the nature of the matrix.
C. S. BILEN, N. HARRISON, D. J. MORANTZ
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Hybrid Local and Charge-Transfer Material with Ultralong Room Temperature Phosphorescence for Efficient Organic Afterglow Light-Emitting Diodes.

Angewandte Chemie
Organic ultralong room temperature phosphorescence (OURTP) materials capable of combining various emission behaviors for diversified optoelectronic properties and applications have recently gained a vigorous development, but it remains a forbidden ...
Dongyue Cui, Longyan Zhang, Jingyu Zhang, Wenjing Li, Jie Chen, Zhenli Guo, Chengxi Sun, Yike Wang, Wenjun Wang, Shuhong Li, Wei Huang, Chao Zheng, Runfeng Chen   +12 more
semanticscholar   +1 more source