Results 71 to 80 of about 19,091 (291)

Stepwise taming of triplet excitons via multiple confinements in intrinsic polymers for long-lived room-temperature phosphorescence

Nature Communications, 2023
Polymeric materials exhibiting room temperature phosphorescence (RTP) show a promising application potential. However, the conventional ways of preparing such materials are mainly focused on doping, which may suffer from phase separation, poor ...
Liang Gao, Jiayue Huang, Lunjun Qu, Xiaohong Chen, Ying Zhu, Chen Li, Quanchi Tian, Yanli Zhao, Chaolong Yang   +8 more
doaj   +1 more source

Agar‐Based Optical Sensing System With a Phosphorescent Grid Pattern for Measuring Stress Distributions of Root Growth Using the Sampling Moiré Method

Advanced Materials Technologies, EarlyView.
This paper presents an agar medium with a phosphorescent grid pattern that measures the stress distribution generated by growing plant roots. Using phosphorescence, the system optically separates the grid pattern from the root and extracts the grid deformation.
Gakuto Kagawa, Hidetoshi Takahashi
wiley   +1 more source

SPECTRUM AND KINETICS OF DIBROMDIBENZOTIOFEN PHOSPHORESCENCE IN N-HEXANES AT 77 K

Наука. Инновации. Технологии, 2022
Spectrum and kinetics of dibromdibenzotiofen phosphorescence in n- hexanes at 77 K have been studied. It has been shown that the visible multiplet structure of phosphorescence spectrum is determined of the superposition of spectra emitted by different ...
Natal’ya Vladimirovna Zhdanova, Mihail Ivanovich Deryabin   +1 more
doaj  

Exploring the Synergy of Combining BINAP and tCzBN Motifs Within Multi‐Resonant TADF Emitters to Enhance OLED Performance

Advanced Optical Materials, EarlyView.
This work presents two MR‐TADF emitters, BINAP‐BN1 and BINAP‐BN2, based on a BINAP core and differing numbers of tCzBN units. Both emitters show similar solution photophysics, but distinct behavior in doped films, where BINAP‐BN1 exhibits higher photoluminescence quantum yield and suppressed aggregation‐induced emission broadening compared to BINAP‐BN2.
John Marques dos Santos, Debasish Barman, Rangani Wathsala Weerasinghe, Tomas Matulaitis, David B. Cordes, Aidan P. McKay, Youichi Tsuchiya, Chihaya Adachi, Eli Zysman‐Colman   +8 more
wiley   +1 more source

Nylons with Highly-Bright and Ultralong Organic Room-Temperature Phosphorescence

Nature Communications
Endowing the widely-used synthetic polymer nylon with high-performance organic room-temperature phosphorescence would produce advanced materials with a great potential for applications in daily life and industry. One key to achieving this goal is to find
Dian-Xue Ma, Zhong-Qiu Li, Kun Tang, Zhong-Liang Gong, Jiang-Yang Shao, Yu-Wu Zhong   +5 more
doaj   +1 more source

Mitigating Efficiency Roll‐Off in Phosphor‐Sensitized Fluorescence OLEDs via Molecular Polarity‐Based Benzofuropyridine Host Engineering

Advanced Optical Materials, EarlyView.
Positional isomerism in dibenzofuran‐based n‐type hosts modulates molecular polarity, charge‐transport balance, and emissive‐layer packing. The higher‐polarity BFPDB‐2 host facilitates efficient energy funneling, reduced aggregation, and preferential dipole orientation, leading to phosphor‐sensitized fluorescence OLEDs with enhanced external quantum ...
Nargis Ali, Xuyao Song, Yun‐Hi Kim, Min Chul Suh   +3 more
wiley   +1 more source

Mechanical Stretch α‐Cyclodextrin Pseudopolyrotaxane Elastomer with Reversible Phosphorescence Behavior

Advanced Science
Polyethylene glycol chains in two terminals of the naphthalene functional group are threaded into α‐cyclodextrin cavities to form the pseudopolyrotaxane (NPR), which not only effectively induces the phosphorescence of the naphthalene functional group by ...
Yi Zhang, Yong Chen, Jian‐Qiu Li, Song‐En Liu, Yu Liu   +4 more
doaj   +1 more source

Highly Efficient Purely Organic Phosphorescence Light‐Emitting Diodes Employing a Donor–Acceptor Skeleton with a Phenoxaselenine Donor

Advanced Science, 2023
Purely organic room‐temperature phosphorescence (RTP) materials generally exhibit low phosphorescence quantum yield (ϕP) and long phosphorescence lifetime (τP) due to the theoretically spin‐forbidden triplet state. Herein, by introducing a donor–acceptor
Zijian Chen, Mengke Li, Qing Gu, Xiaomei Peng, Weidong Qiu, Wentao Xie, Denghui Liu, Yihang Jiao, Kunkun Liu, Jiadong Zhou, Shi‐Jian Su   +10 more
doaj   +1 more source

On‐Demand Circularly Polarized Room‐Temperature Phosphorescence in Chiral Nematic Nanoporous Silica Films

, 2022
Circularly polarized room-temperature phosphorescence (CPRTP) is of paramount importance for applications in information encoding, bioimaging, and optoelectronic devices, however, it remains challenging to organize highly efficient CPRTP materials with ...
Tang, Zhiyong, Xiaoqing Gao, Ma, Xiaoting, Zhang, Dan, Xiaoting Ma, Zhiyong Tang, Dan Zhang, Su, Lina, Xu, Yan, Lina Su, Gao, Xiaoqing, Zheng, Hongzhi, Hongzhi Zheng, Yan Xu   +13 more
core   +1 more source

Efficient Screening of Organic Singlet Fission Molecules Using Graph Neural Networks

Advanced Science, EarlyView.
A high‐throughput screening framework based on graph neural networks (GNNs) and multi‐level validation facilitates the identification of singlet fission (SF) candidates. By efficiently predicting excitation energies across 20 million molecules, and integrating TDDFT calculations, synthetic accessibility assessments, and GW+BSE calculations, this ...
Li Fu, Longfei Lv, Fan Zhang, Si Zhou, Weiwei Gao, Jijun Zhao   +5 more
wiley   +1 more source