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Efficient energy transfer in organic light-emitting transistor with tunable wavelength

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Nano Research 2022年第4期15卷 3647-3652页

作者： Ke Zhou Jian Tang Shaofan Fang Ke Jiang Fangxu Yang deyang Ji Jing Xiang Jie Liu Huanli Dong(✉) Cheng Han Hanlin Hu Xiaotao Zhang Wenping Hu Yumeng Shi International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education Institute of Microscale OptoelectronicsShenzhen UniversityShenzhen 518060China Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of ChemistrySchool of SciencesTianjin UniversityTianjin 300072China Hoffman Institute of Advanced Materials Shenzhen PolytechnicShenzhen 518060China Beijing National Laboratory for Molecular Sciences Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China Joint School of National University of Singapore and Tianjin University International Campus of Tianjin UniversityBinhai New CityFuzhou 350207China

Key challenges in the development of organic light-emitting transistors(OLETs)are blocking both scientific research and practical applications of these devices,e.g.,the absence of high-mobility emissive organic semiconductor materials,low device efficiency,and color ***,we report a novel device configuration called the energy transfer organic light-emitting transistor(ET-OLET)that is intended to overcome these *** organic fluorescent dye-doped polymethyl methacrylate(PMMA)layer is inserted below the conventional high-mobility organic semiconductor layer in a single-component OLET to separate the functions of the charge transport and light-emitting layers,thus making the challenge to essentially integrate the high mobility and emissive functions within a single organic semiconductor in a conventional OLET or multilayer OLET *** this architecture,there is little change in mobility,but the external quantum efficiency(EQE)of the ET-OLET is more than six times that of the conventional OLET because of the efficient Förster resonance energy transfer,which avoids exciton-charge *** addition,the emission color can be tuned from blue to white to green-yellow using the sourcedrain and gate *** proposed structure is promising for use with electrically pumped organic lasers.

关键词： color tunability energy transfer organic light-emitting transistor(OLET) Förster resonance energy transfer(FRET)

Comparative Study on Coastal Depth Inversion Based on Multi-source Remote Sensing Data

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Chinese Geographical Science 2019年第2期29卷 192-201页

作者： LU Tianqi CHEN Shengbo TU Yuan YU Yan CAO Yijing JIANG deyang College of Geo-exploration Science and Technology Jilin University College of Earth Sciences Guilin University of Technology

Coastal depth is an important research focus of coastal waters and is also a key factor in coastal environment. Dongluo Island in South China Sea was taken as a typical study area. The band ratio model was established by using measured points and three multispectral images of Landsat-8, SPOT-6(Systeme Probatoire d'Observation de la Terre, No.6) and WorldView-2. The band ratio model with the highest accuracy is selected for the depth inversion respectively. The results show that the accuracy of SPOT-6 image is the highest in the inversion of coastal depth. Meanwhile, analyzing the error of inversion from different depth ranges, the accuracy of the inversion is lower in the range of 0–5 m because of the influence of human activities. The inversion accuracy of 5–10 m is the highest, and the inversion error increases with the increase of water depth in the range of 5–20 m for the three kinds of satellite images. There is no linear relationship between the accuracy of remote sensing water depth inversion and spatial resolution of remote sensing data, and it is affected by performance and parameters of sensor. It is necessary to strengthen the research of remote sensor in order to further improve the accuracy of inversion.

关键词： coastal waters remote sensing quantitative inversion satellite accuracy comparison

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积极推进中国式乙型肝炎“全治”--对进一步修改我国乙型肝炎防治指南的建议

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中华肝脏病杂志 2023年第10期31卷 1101-1102页

作者：王德扬宁波大学附属第一医院(外滩院区)感染科宁波315020

我国自2005年发布首部《慢性乙型肝炎防治指南》(下简称《乙肝指南》)以来,分别于2010年、2015年、2019年和2022年4次发布修订版,及时根据国内外乙型肝炎防治研究的新成果,不断更新乙型肝炎防治理念与策略,对指导我国乙型肝炎科学防治... 详细信息

我国自2005年发布首部《慢性乙型肝炎防治指南》(下简称《乙肝指南》)以来,分别于2010年、2015年、2019年和2022年4次发布修订版,及时根据国内外乙型肝炎防治研究的新成果,不断更新乙型肝炎防治理念与策略,对指导我国乙型肝炎科学防治发挥了很好的引领作用,功不可没。纵观刚颁布的2022年《乙肝指南》就有不少新的亮点,例如将乙型肝炎的自然史4期更新为乙型肝炎e抗原(HBeAg)阳性慢性乙型肝炎病毒(HBV)感染、HBeAg阳性慢性乙型肝炎(CHB)、HBeAg阴性慢性HBV感染和HBeAg阴性慢性CHB,并增加了“不确定期”的描述,既与国际接规,又符合客观实际。

关键词：慢性乙型肝炎乙型肝炎病毒抗病毒治疗

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Imaging Resolution Analysis and Simulation of Compton Camera Using in Deep Heavy Ion Therapy

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IMP & HIRFL Annual Report 2017年第1期 67-68页

作者： Song Zhangyong Yu deyang Cai Xiaohong 不详

Heavy ion therapy is a rapidly developing new *** is based on the Bragg effect of heavy ions,i:e.,most of the energy of heavy ions is deposited at the end of its range,and its track is almost *** with traditional X-ray therapy,the advantage of heavy ion is that the dose can be concentrated on the tumor body while the surrounding normal tissues receive only a small *** means that,for tumors near the important organs of the human body,heavy ion therapy has a unique advantage that other radiation means do not have,the tumor receives enough doses,and the important organs receive a negligible dose.

关键词： organs doses therapy

3-16 Development of a Momentum Computed Tomography for Sputtered Ions

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IMP & HIRFL Annual Report 2016年第1期 91-92页

作者： Zhang Yuezhao Yu deyang Wang Wei 不详

When energetic ions interact with solid surfaces,sputtered ions are produced[1].The normalized distribution function F(m,q,vx,vy,vz)of the ions mass numbers m,charge states q and velocity(vx,vy,vz)in Cartesian coordinate represents kinematical information,and therefore carries important dynamical information of the sputtering process.A new instrument that is able to collect all the outgoing sputtered ions with 2Πsolid angle and subsequently can measure F(m,q,vx,vy,vz)is *** spectrometer structure is illustrated,the mathematical basis is presented and an algebraic algorithm is employed to calculate F(m,q,vx,vy,vz)numerically.

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噁二唑类含能金属盐对高燃速丁羟推进剂性能的影响

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固体火箭技术 2025年第1期48卷 133-138页

作者：李鑫牟国柱周鹏陈德洋侯斌张天福航天化学能源全国重点实验室襄阳441003 湖北航天化学技术研究所襄阳441003

为了改善高燃速丁羟推进剂在低压下的燃烧性能,以4-四唑-5-硝氨基呋咱钾盐为基体,通过置换反应,与Cu^(2+)、Fe^(2+)进行配合,制备了2种分别以铜离子和亚铁离子为金属离子、4-四唑-5-硝氨基呋咱为阴离子的含能金属盐CuC_(3)N8O_(3)(CM-1)... 详细信息

为了改善高燃速丁羟推进剂在低压下的燃烧性能,以4-四唑-5-硝氨基呋咱钾盐为基体,通过置换反应,与Cu^(2+)、Fe^(2+)进行配合,制备了2种分别以铜离子和亚铁离子为金属离子、4-四唑-5-硝氨基呋咱为阴离子的含能金属盐CuC_(3)N8O_(3)(CM-1)、FeC_(3)N8O_(3)(FM-1),并利用X射线单晶衍射、元素分析、TG-DSC对其性能进行了分析。结果表明,化合物CM-1与FM-1的热稳定性良好,分解峰温分别为276.5℃与269.7℃,撞击感度分别为38.4 J和40.8 J,对推进剂的感度不会产生不良影响。CM-1、FM-1用作高燃速丁羟推进剂燃速调节剂时,两者都能够有效提高推进剂在低压下的燃速,并且具有良好的压强指数。相比之下,FM-1的燃速调节作用效果更为明显,在使用FM-1时,推进剂燃速由16.3 mm/s提升至22.1 mm/s(1 MPa),增幅约为35.6%,1~6.86 MPa下的燃速压强指数由0.32降低至0.19。

关键词：含能金属盐燃速调节剂高燃速丁羟推进剂低压工况

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Controlled manipulation of conductive ferroelectric domain walls and nanoscale domains in BiFeO_(3) thin films

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Journal of Materiomics 2022年第2期8卷 274-280页

作者： Dongfeng Zheng Guo Tian Yadong Wang Wenda Yang Luyong Zhang Zoufei Chen Zhen Fan deyang Chen Zhipeng Hou Xingsen Gao Qiliang Li Jun-Ming Liu Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials and Institute for Advanced Materials South China Academy of Advanced OptoelectronicsSouth China Normal UniversityGuangzhou510006China Songshan Lake Materials Laboratory Dongguan Guangdong523808China Department of Electrical and Computer Engineering George Mason UniversityFairfaxVirginia22030USA Laboratory of Solid State Microstructures and Innovation Center of Advanced Microstructures Nanjing UniversityNanjing210093China

Recently,there is a surge of research interest in configurable ferroelectric conductive domain walls which have been considered as possible fundamental building blocks for future electronic *** this work,by using piezoresponse force microscopy and conductive atomic force microscopy,we demonstrated the controlled manipulation of various conductive domain walls in epitaxial BiFeO_(3) thin films,*** domain walls(NDW)and charged domain walls(CDWs).More interestingly,a specific type of nanoscale domains was also identified,which are surrounded by highly conductive circular *** nano-scale domains can also be controlled created and erasured by applying local field via conductive probe,which allow nondestructive current readout of different domain states with a large on/off resistance ratio up to *** results indicate the potential to design and develop high-density non-volatile ferroelectric memories by utilizing these programable conductive nanoscale domain walls.

关键词： BiFeO_(3)thin film Conductive domain wall Nanoscale domain High density memory

Effects of Doppler Broadening on the Performance of Compton Camera

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IMP & HIRFL Annual Report 2018年第1期 197-198页

作者： Song Zhangyong Yu deyang Cai Xiaohong 不详

A demonstration device for heavy-ion cancer therapy(HICT)has been built with complete intellectual property rights by Institute of Modern Physics inWuwei *** meet the medicine security in HICT,methods for monitoring the ion range on-line is necessary and urgent.A technology called Compton camera(CC)is seemed a promising set-up for prompt gamma-ray imaging because it has a wide energy-detection range from a few hundred keV up to a few ***,a primary issue limits the CC technology applying actual HICT and similar *** issue is related to the imaging resolution of CC which is usually larger than 1 mm and is caused by Doppler broadening and other physical reasons.

关键词： applying property prompt

Optimization Design and Analysis of a Hybrid Permanent Magnet Flux-Switching Motor with Compound Rotor Configuration

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CES Transactions on Electrical Machines and Systems 2018年第2期2卷 200-206页

作者： Zixuan Xiang Xiaoyong Zhu Li Quan deyang Fan School of Electrical and Information Engineering Jiangsu UniversityZhenjiang 212013China Jiangsu Key Laboratory of Drive and Intelligent Control for Electric Vehicle Jiangsu UniversityZhenjiang 212013China

This paper proposes a type of flux-switching permanent magnet(FSPM)motor,where the design concept of the hybrid permanent magnets(HPM)and the compound rotor are incorporated into the motor *** such design,the proposed motor can not only realize the significant reduction of NdFeB volume,but also artfully convert external magnetic flux leakage into the air-gap field to achieve competitive torque density and desirable PM usage *** extensive investigation,two topologies of the HPM are designed and analyzed for the proposed motor,which consist of the parallel-magnetic-hybrid(PMH)mode and serial-magnetic-hybrid(SMH)*** fully exploit the potential advantages of the proposed motor,a multi-objective optimization design is conducted,where the response surface method(RSM)and sequential non-linear programming(SNP)method are purposely *** optimization,the electromagnetic performances of the motor with PMH mode and SMH mode are evaluated and compared by using finite element method(FEM),which include the back-EMF,cogging torque,output torque,and so ***,the partial demagnetization of the ferrite PM is also investigated in the ***,the theoretical analysis and simulation study verify the effectiveness of the proposed motor and corresponding optimization design.

关键词： Electromagnetic performances flux-switching permanent magnet(FSPM)motor hybrid permanent magnets(HPM) multi-objective optimization.