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Science China Chemistry 2024年第6期67卷 1922-1928页

作者： Shasha Zhang Wei Yao anqi lv Kun Liu Yusheng Zhang Chifeng Zhou Huili Ma Huifang Shi Zhongfu An Key Laboratory of Flexible Electronics(KLOFE)&Institute of Advanced Materials(IAM) Nanjing Tech UniversityNanjing211816China

High-efficiency long-wavelength phosphorescence emissions of large singlet-triplet energy gap(ΔE_(ST))materials are essential for applications in biology and ***,few long-wavelength phosphorescence emissions of largeΔE_(ST)materials have been reported due to the weak spin-orbit coupling(SOC)and strong non-radiative ***,we develop a strategy to achieve highly efficient long-wavelength room temperature phosphorescence(RTP)emission of largeΔE_(ST)materials,which display bright red RTP emission with above 400μs lifetime and 6.5%phosphorescent quantum *** experiments and theoretical calculations reveal that the fishbone-like packing and the zig-zag interactions provide favorable conditions for suppressing the non-radiative transitions of triplet state excitons,and heavy atoms effectively promote the intersystem crossing(ISC)process for highly efficient long-wavelength phosphorescence *** universality of the method for highly efficient long-wavelength RTP emission of largeΔE_(ST)materials was further investigated in various ***,these materials with largeΔE_(ST)manifest the advantages of large color contrast on the display and utilization potentiality in information *** strategy paves the way for the high contrast display and development of information encryption with RTP emission.

关键词： room temperature phosphorescence singlet-triplet energy gap host-guest doping heavy atom effect red phosphorescence

Color-tunable ultralong organic phosphorescence materials for visual UV-light detection

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Science China Chemistry 2020年第10期63卷 1443-1448页

作者： Lifang Bian Huili Ma Wenpeng Ye anqi lv He Wang Wenyong Jia Long Gu Huifang Shi Zhongfu An Wei Huang Key Laboratory of Flexible Electronics(KLOFE)&Institute of Advanced Materials(IAM) Nanjing Tech UniversityNanjing 211816China 2Frontiers Science Center for Flexible Electronics(FSCFE) Shaanxi Institute of Flexible Electronics(SIFE)&Shaanxi Institute of Biomedical Materials and Engineering(S/BME)Northwestern Polytechnical University(NPU)Xi'an 710072China

Ultralong organic phosphorescence(UOP)materials have roused considerable attention in the field of photonics and optoelectronics owing to the feature of long-lived emission ***,to develop UOP materials with color-tunability is still a formidable ***,we report a class of UOP materials containing carbonyl,amino or amide groups,exhibiting colortunable persistent luminescence ranging from blue(458 nm)to yellow-green(508 nm)under different UV wavelength *** theoretical and experimental results together,we conclude that the excitation dependent color-tunable UOP emission is ascribed to multiple emission centers from single molecular and aggregated states in *** color-tunable UOP feature,these materials are used to successfully realize visual UV-light *** finding not only provides a strategy to design new organic phosphorescent molecules with colorful emission,but also extends the scope of the applications of purely organic phosphorescent materials.

关键词： color tunability room temperature phosphorescence excitation dependent emission persistent luminescence UV-light detection

Polymorphism-Dependent Dynamic Ultralong Organic Phosphorescence

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Research 2020年第1期2020卷 1501-1509页

作者： Mingxing Gu Huifang Shi Kun Ling anqi lv Kaiwei Huang Manjeet Singh He Wang Long Gu Wei Yao Zhongfu An Huili Ma Wei Huang Institute of Flexible Electronics(IFE) Northwestern Polytechnical University(NPU)127 West Youyi RoadXi’an 710072China Key Laboratory of Flexible Electronics(KLOFE)&Institute of Advanced Materials(IAM) Nanjing Tech University(NanjingTech)30 South Puzhu RoadNanjing 211816China

Developing ultralong organic phosphorescence(UOP)materials with smart response to external stimuli is of great interest in photonics applications,whereas the manipulation of molecular stacking on tuning such dynamic UOP is still a formidable ***,we have reported two polymorphs with distinct photoactivated dynamic UOP behavior based on a pyridine derivative for the first *** experiment revealed that the dynamic UOP behavior including photoactivation and deactivation feature is highly dependent on irradiation intensity and environmental ***,given the unique dynamic UOP feature,these phosphors have been successfully applied to phosphorescence-dependent molecular logic gate and timing data *** result not only paves a way to design smart functional materials but also expands the scope of the applications on organic phosphorescence materials.

关键词： materials. smart behavior

Elastic organic crystals with ultralong phosphorescence for flexible anti-counterfeiting

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npj Flexible Electronics 2021年第1期5卷 169-174页

作者： Kaiwei Huang Lulu Song Kun Liu anqi lv Manjeet Singh Kang Shen Jing Shen Jiamin Wang Hongchen Wang Huifang Shi Huili Ma Mingxing Gu Gengzhi Sun Wei Yao Zhongfu An Wei Huang Key Laboratory of Flexible Electronics(KLOFE)&Institute of Advanced Materials(IAM) Nanjing Tech University(NanjingTech)NanjingPeople’s Republic of China Frontiers Science Center for Flexible Electronics(FSCFE) Shaanxi Institute of Flexible Electronics(SIFE)&Shaanxi Institute of Biomedical Materials and Engineering(SIBME)Northwestern Polytechnical University(NPU)Xi’anChina

Ultralong organic phosphorescence(UOP)crystals have attracted increased attention due to the distinct photophysical property of a long-lived ***,organic crystals are generally brittle,leading to a serious problem for their application in flexible ***,we report three types of elastic organic crystals(EOCs)with ultralong phosphorescence via introducing halogen atoms(Cl,Br,I)intoπ-conjugated phosphorescent ***,the crystal containing iodine atoms displayed both excellent elasticity(ε=3.01%)and high phosphorescent efficiency(Φ_(Ph)=19.1%)owing to the strong halogen *** advantage of its highly efficient UOP and excellent elasticity,we successfully used a DCz4I crystal for anti-counterfeiting *** findings may provide guidance for the development of elastic crystals with afterglow and expand the scope of potential applications on flexible materials.

关键词： materials elasticity crystal

A Single-Component Supramolecular Organic Framework with Efficient Ultralong Phosphorescence

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CCS Chemistry 2021年第11期3卷 466-472页

作者： Lulu Song Xiao Wang Meng Zhang Wenyong Jia Qian Wang Wenpeng Ye He Wang anqi lv Huili Ma Long Gu Huifang Shi Zhongfu An Wei Huang Key Laboratory of Flexible Electronics(KLOFE) Institute of Advanced Materials(IAM)Nanjing Tech University(NanjingTech)Nanjing 211816 Frontiers Science Center for Flexible Electronics Xi’an Institute of Flexible Electronics(IFE)&Xi’an Institute of Biomedical Materials and Engineering(IBME)Northwestern Polytechnical UniversityXi’an 710072

Supramolecular organic frameworks(SOFs),due to the atomically precise integration of the repeated building units,exhibit intriguing properties and consequently potential applications in chemical and materials science ***,it remains a great challenge to achieve SOFs with ultralong organic phosphorescence(UOP)in a singlecomponent ***,we report metal-free organic compound 9,9′-(6-(2-bromophenethoxy)-1,3,5-triazine-2,4-diyl)bis(9H-carbazole)(DCzPO)with UOP *** to the combination of multiple supramolecular interactions,DCzPO formed a SOF structure with regular hexagonal holes,which shows an ultralong emission lifetime of 398 ms and a phosphorescence efficiency of 3%.So far as we know,among the reported luminescent SOFs,this one is the most highly *** single-component SOF with ultralong phosphorescence will provide a new platform to rationally combine UOP and porous materials.

关键词： ultralong organic phosphorescence noncovalent interactions solid-state structure Haggregation πinteraction

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铁路监测WSN网络的非均匀优化分簇算法

铁道学报 2019年第11期41卷 72-78页

作者：吕安琪李翠然谢健骊段宝峰兰州交通大学电子与信息工程学院

针对铁路沿线无线传感器网络(WSN)线性部署导致的"能量空洞"问题,提出一种节点非均匀优化分簇算法。在所需监测的铁路沿线等距部署WSN节点,以均衡簇头(CH)节点单位时间能耗为优化目标,对铁路直线轨道、弧线轨道监测区域内的簇成员节点... 详细信息

针对铁路沿线无线传感器网络(WSN)线性部署导致的"能量空洞"问题,提出一种节点非均匀优化分簇算法。在所需监测的铁路沿线等距部署WSN节点,以均衡簇头(CH)节点单位时间能耗为优化目标,对铁路直线轨道、弧线轨道监测区域内的簇成员节点进行非均匀分簇;建立CH节点能耗、CH节点数目和簇成员节点数目之间的函数关系,结合CH节点能耗波动、CH负载均衡度和CH能耗平衡度这3个性能指标,构建优化的WSN分簇部署模型;基于该模型,对比分析了本文算法、簇头固定的非均匀分簇算法、均匀分簇和组数据传输算法的性能。仿真数据表明:提出的节点优化部署模型和算法在降低及均衡CH节点能耗,延长CH节点寿命和提高网络通信效率方面性能较优。

关键词：铁路环境监测无线传感器网络能量空洞非均匀分簇能耗

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高铁山地场景下的车地无线信道建模

计算机工程 2020年第5期46卷 224-229,239页

作者：李翠然张闻博吕安琪兰州交通大学电子与信息工程学院兰州730070

高铁列车经过山地场景时由于散射体分布不均匀使得无线信号呈现明显的衰落特性。针对这一现象,提出一种在高速运行状态下列车与基站之间的车地无线信道建模方法。在列车相对基站的不同位置区间内,采用马尔科夫链模拟平均接收信噪比的状... 详细信息

高铁列车经过山地场景时由于散射体分布不均匀使得无线信号呈现明显的衰落特性。针对这一现象,提出一种在高速运行状态下列车与基站之间的车地无线信道建模方法。在列车相对基站的不同位置区间内,采用马尔科夫链模拟平均接收信噪比的状态变化,根据高铁山地场景中的路径损耗模型计算得到平均接收信噪比阈值、量化值及信道状态转移矩阵,从而建立有限状态马尔科夫链(FSMC)信道模型。仿真结果表明,与通过均匀与非均匀划分列车位置范围建立的信道模型相比,FSMC模型均方误差最小,可有效评估列车与基站之间的通信质量。

关键词：有限状态马尔科夫链路径损耗平均接收信噪比无线信道均方误差

言说不可言说——论《耶路撒冷乞丐》的空间叙事

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外文研究 2020年第3期8卷 92-98,110页

作者：敬南菲吕安琪杭州电子科技大学外语学院浙江省杭州市310018

埃利·威赛尔的《耶路撒冷乞丐》的空间叙事从内容上看主要包括对耶路撒冷物理空间和幸存者心理空间的书写。就形式而言,它运用叙事时间空间化、叙事进程空间并置等策略,表达传统现实主义无法再现的大屠杀创伤。小说的空间叙事表明,创... 详细信息

埃利·威赛尔的《耶路撒冷乞丐》的空间叙事从内容上看主要包括对耶路撒冷物理空间和幸存者心理空间的书写。就形式而言,它运用叙事时间空间化、叙事进程空间并置等策略,表达传统现实主义无法再现的大屠杀创伤。小说的空间叙事表明,创伤主体通过私人经验的脱域,将个人灾难化为与所有人共通的真相,或能达到言说不可言说的创伤的目的。

关键词：耶路撒冷乞丐空间叙事大屠杀创伤

Recent progress in constructing fluorinated solid-electrolyte interphases for stable lithium metal anodes

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 270-291页

作者： Di Zhang Pengfei lv Wei Qin Xin He Yuanhua He Civil Aircraft Fire Science and Safety Engineering Key Laboratory of Sichuan Province College of Civil Aviation Safety EngineeringCivil Aviation Flight University of ChinaGuanghan 618307China School of Chemical Engineering Sichuan UniversityChengdu 610065China

Lithium metal batteries(LMBs)are emerging as a promising energy storage solution owing to their high energy density and specific ***,the non-uniform plating of lithium and the potential rupture of the solid-electrolyte interphase(SEI)during extended cycling use may result in dendrite growth,which can penetrate the separator and pose significant short-circuit *** a stable SEI is essential for the long-term operation of the ***-rich SEI has garnered significant attention for its ability to effectively passivate electrodes,regulate lithium deposition,and inhibit electrolyte *** the structural components and preparation methods of existing fluorinated SEI is crucial for optimizing lithium metal anode *** paper reviews the research on optimizing LiF passivation interfaces to protect lithium metal *** focuses on four types of compositions in fluorinated SEI that work synergistically to enhance SEI *** instance,combining compounds with LiF can further enhance the mechanical strength and ionic conductivity of the *** metals with LiF significantly improves electrochemical performance at the SEI/anode interface,with a necessary focus on reducing electron tunneling ***,incorporating polymers with LiF offers balanced improvements in interfacial toughness and ionic conductivity,though maintaining structural stability over long cycles remains a critical area for future *** alloys combined with LiF increase surface energy and lithium affinity,challenges such as dendrite growth and volume expansion *** summary,this paper emphasizes the crucial role of interfacial structures in LMBs and offers comprehensive guidance for future design and development efforts in battery technology.

关键词： LiF lithium metal anodes solid-electrolyte interphase interface cycling stability

Blood diagnostic and prognostic biomarkers in amyotrophic lateral sclerosis

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Neural Regeneration Research 2025年第9期20卷 2556-2570页

作者： Yongting lv Hongfu Li Department of Neurology Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang ProvinceChina Department of Medical Genetics and Center for Rare disease Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang ProvinceChina Nanhu Brain-Computer Interface Institute HangzhouZhejiang Province

Amyotrophic lateral sclerosis is a devastating neurodegenerative disease for which the current treatment approaches remain severely *** principal pathological alterations of the disease include the selective degeneration of motor neurons in the brain,brainstem,and spinal cord,as well as abnormal protein deposition in the cytoplasm of neurons and glial *** biological markers under extensive scrutiny are predominantly located in the cerebrospinal fluid,blood,and even *** these biomarke rs,neurofilament proteins and glial fibrillary acidic protein most accurately reflect the pathologic changes in the central nervous system,while creatinine and creatine kinase mainly indicate pathological alterations in the peripheral nerves and *** light chain levels serve as an indicator of neuronal axonal injury that remain stable throughout disease progression and are a promising diagnostic and prognostic biomarker with high specificity and ***,there are challenges in using neurofilament light chain to diffe rentiate amyotrophic lateral sclerosis from other central nervous system diseases with axonal *** fibrillary acidic protein predominantly reflects the degree of neuronal demyelination and is linked to non-motor symptoms of amyotrophic lateral sclerosis such as cognitive impairment,oxygen saturation,and the glomerular filtration *** DNA-binding protein 43,a pathological protein associated with amyotrophic lateral sclerosis,is emerging as a promising biomarker,particularly with advancements in exosome-related *** is currently lacking for the value of creatinine and creatine kinase as diagnostic markers;however,they show potential in predicting disease *** the vigorous progress made in the identification of amyotrophic lateral sclerosis biomarkers in recent years,the quest for definitive diagnostic and prognostic biomarke rs remains a formidable *** review summarizes the lat

关键词： amyotrophic lateral sclerosis biomarker blood biomarkers diagnosis glial fibrillary acidic protein neurofilament light chain prognosis TAR DNA-binding protein 43