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19篇 您的检索式:作者名="Zhang Huanli"
    题名 作者 年代 出处 被引量
1Vertical‐organic‐nanocrystal‐arrays for crossbar memristors with tuning switching dynamics toward neuromorphic computing显示文摘Memristors proposed by Leon Chua provide a new type of memory device for novel neuromorphic computing applications.However,the approaching of distinct multi‐intermediate states for tunable switching dynamics,the con-trolling of conducting filaments(CFs)toward high device repeatability and reproducibility,and the ability for large‐scale preparation devices,remain full of challenges.Here,we show that vertical‐organic‐nanocrystal‐arrays(VONAs)could make a way toward the challenges.The perfect one‐dimensional structure of the VONAs could confine the CFs accurately with fine‐tune resistance states in a broad range of 103 ratios.The availability of large‐area VONAs makes the fabrication of large‐area crossbar memristor arrays facilely,and the analog switching characteristic of the memristors is to effectively imitate different kinds of synaptic plasticity,indicating their great potential in future applications.Fangxu Yang Lingjie Sun Qingxi Duan Huanli Dong Zhaokun Jing Yuchao Yang Rongjin Li Xiaotao Zhang Wenping Hu Leon Chua 2021SmartMat2021,2,1:5
2Molecular-scale integrated multi-functions for organic lightemitting transistors显示文摘Organic light-mitting transistors(OLETs)integrate the functions of light-emitting diodes and field-effect transistors into a unique device,opening a new door for optoelectronics.However,there is still a challenge due to the absence of high quality organic semiconductors for OLETs.Herein,we reported a novel molecule 2,6-di(anthracen-2-yl)naphthalene(2,6-DAN),which exhibited mobility of up to 19 cm2:V'-s'and an absolute fluorescence quantum yield of 37.09%,which are good values for organic semiconductors.Moreover,OLETs based on 2,6-DAN single crystals showed bright yellowish-green emission and well-balanced ambipolar charge transport.The excellent ratio of hole to electron mobilty can reach up to 0.86,which is superior to most single component OL ETs in typical device configurations reported so far.Lei Zheng Jinfeng Li Ke Zhou Xixia Yu Xiaotao Zhang Huanli Dong Wenping Hu 2020Nano Research2020,13,7:4
3Multi-walled carbon nanotubes covalently functionalized by axially coordinated metal-porphyrins: Facile syntheses and temporally dependent optical performance显示文摘向轴的方向协调了 metal-porphyrin-functionalized 多围的碳 nanotube (MWCNT ) nanohybrids 经由二条不同合成途径(一个壶 1,3-dipolar cycloaddition 反应和那深奥 1,3-dipolar cycloaddition 由亲核的替换跟随了的一条逐步的途径) 被准备,并且通过分光镜的技术描绘了。到 MWCNT 的表面的听卟啉的附件显著地改进他们处理的溶解度和容易。协调的这些向轴的方向(5,10,15,20-tetraphenylporphyrinato ) 锡(IV )(SnTPP )-MWCNTs 展览重要荧光熄灭。结果的 nanohybrids 的第三顺序的非线性的光性质被与毫微秒和微微秒激光脉搏在 532 nm 使用 Z 扫描技术学习。当分别地,毫微秒或微微秒脉搏被采用时,结果证明 nanohybrids 展出重要反向的可饱和的吸收或可饱和的吸收。在毫微秒政体的改进非线性的吸收在继续到 nanohybrids 上被观察并且被归功于到 MWCNT 和化学上依附的金属卟啉的突出的性质的联合。Aijian Wang Jingbao Song Zhipeng Huang Yinglin Song Wang Yu Huanli Dong Wenping Hu Marie P. Cifuentes Mark G. Humphrey Long Zhang Jianda Shao Chi Zhang 2016Nano Research2016,9,2:3
4High performance organic transistors and phototransistors based on diketopyrrolopyrrole-quaterthiophene copolymer thin films fabricated via low-concentration solution processing显示文摘Conjugated polymers have received considerable attentions over the past years due to their large-area potential applications via low-cost solution processing.Improving crystallinity of conjugated polymer molecules in solution-processed thin films is crucial for their efficient charge transport and thus high performance optoelectronic devices.Herein,with diketopyrrolopyrrole-quaterthiophene(PDQT)copolymer as an example,it is found that by simply reducing the solution concentration for spincoating meanwhile with the assistance of post-annealing,significantly enhanced film crystallinity with formation of typical single crystalline domains is obtained,which benefits from the enough space for better molecular assembly especially at the semiconductor/dielectric interface.High performance polymer transistors and phototransistors were finally constructed based on the optimal lowconcentration(2 mg/mL)spin-coated PDQT films(12 nm),which giving a high charge carrier mobility of 2.28 cm^2V^(-1)s^(-1)and a photoresponse on/off ratio of 2.1×10~7at V_G=0 V under white light irradiation of6 mW/cm^2.The results suggest that the bright future of PDQT crystalline films for large-area flexible integrated optoelectronic devices and the application of effective low-concentration processing approach in solution-processed organic electronics with reduced material waste.Pengcheng Gu Mengxiao Hu Shang Ding Guangyao Zhao Yifan Yao Feng Liu Xiaotao Zhang Huanli Dong Xiangke Wang Wenping Hu 2018Chinese Chemical Letters2018,29,11:2
5Implantation with low-energy N+beam changes the transcriptional activation of the expression sequencetags(ESTs)from the transposable elements in rice显示文摘Ya Huiyuan Zhang Huanli Feng Weisen 2011Journal of Agricultural Research2011,6,18:1
6A new fluorescent quinoline derivative toward the acid-responsivity in both solution and solid states显示文摘In this article,an acid-responsive luminescent material,1,4-di(quinoline-6-yl)buta-1,3-diyne(DQBD)is designed and synthesized.Upon different pH values,gradual changes of fluorescence colors for DQBD in both solution and solid phases are demonstrated due to the protonation effect.Moreover,such responsive characteristics can also be reversible,suggesting DQBD as a promising fluorescent material with great potential for reusable-and accurate-p H sensors in the future.Pu Wang Dan Liu Yongshuai Wang Pan Zhang Panpan Yu Mincan Wang Yonggang Zhen Huanli Dong Wenping Hu 2020Chinese Chemical Letters2020,31,11:0
7Heterostructuring noble-metal-free 1T'phase MoS_(2) with g-C_(3)N_(4) hollow nanocages to improve the photocatalytic H2 evolution activity显示文摘In this work,we report the preparation of 1T'-MoS_(2)/g-C_(3)N_(4) nanocage(NC)heterostructure by loading 2D semi-metal noble-metal-free 1T'-MoS_(2) on the g-C_(3)N_(4) nanocages(NCs).DFT calculation and experimental data have shown that the 1T'-MoS_(2)/g-C_(3)N_(4) NC heterostructure has a stronger light absorption capacity and larger specific surface area than pure g-C_(3)N_(4) NCs and g-C_(3)N_(4) nanosheets(NSs),and the presence of the co-catalysts 1T'-MoS_(2) can effectively inhibit the photoinduced carrier recombination.As a result,the 1T'-MoS_(2)/g-C_(3)N_(4) NC heterostructure with an optimum 1T'-MoS_(2) loading of 9 wt%displays a hydrogen evolution rate of 1949 mmol h^(-1) g^(-1),162.4,1.2,1.5,1.6 and 1.2 times than pure g-C_(3)N_(4) NCs(12 mmol h^(-1) g^(-1)),Pt/g-C_(3)N_(4) NCs(1615 mmol h^(-1) g^(-1))and Pt/g-C_(3)N_(4) nanosheets(NSs,1297 mmol h^(-1) g^(-1)),1T'-MoS_(2)/g-C_(3)N_(4) nanosheets(1216 mmol h^(-1) g^(-1))and 2H-MoS_(2)/g-C_(3)N_(4) nanocages(1573 mmol h^(-1) g^(-1)),respectively,and exhibits excellent cycle stability.Therefore,1T'-MoS_(2)/g-C_(3)N_(4) NC heterostructure is a suitable photocatalyst for green H_(2) production.Yanjun Xue Yinghong Ji Xinyu Wang Huanli Wang Xiaobo Chen Xiaoli Zhang Jian Tian 2023Green Energy & Environment2023,8,3:0
8Tuning the aggregation structure and electrical property of 2.6-diphenyl-anthracene by the density of octadecyltrichlorosilane显示文摘The physical and chemical properties of organic semiconductors are closely related to their aggregation structure. Tuning of aggregation structure and electrical property is important for the application in organic electronics. In this study, a facile way to tune the aggregation structure and electrical property of 2.6-diphenyl-anthracene(DPA) is realized by using the octadecyltrichlorosilane(OTS) modification layer with different density which is fabricated by controlling reaction temperature and time.Compared with low density OTS, DPA forms larger grain size, less grain boundaries, and better molecular ordering on high density OTS surface. As a result, the charge transporting mobility of DPA film on high density OTS surface is about two orders of magnitude higher than that on low density OTS surface. The tunable aggregation structure and electrical property of DPA demonstrated here would be meaningful for the application of DPA in organic electronics.Xi Zhang Xiaosong Chen Jie Liu Yonggang Zhen Huanli Dong Liqiang Li Wenping Hu 2016Science China Chemistry2016,59,12:0
9Polymer Science显示文摘Polymer science is an interdisciplinary area,which is gradually developed on the basis of organic chemistry,physical chemistry,biochemistry,and other disciplines.Polymer science is composed of two important branches:'polymer chemistry'and'polymer physics'.It includes polymer materials,polymer synthesis,polymer theory and simulation,and many other research branches.Polymer materials as an important cornerstone of modern industry and high technology exhibit many excellent properties.They have become an indispensable and important guarantee for the basic industry of the national economy and security.Polymer synthesis is the foundation of the polymer materials industry,which provides the methods for the preparation of polymer materials with different functionalities.Polymer theory and simulation provides a solid theoretical foundation and more possibilities for the design of polymer materials.ZHANG Yuetao DONG Huanli SUN Zhaoyan DONG Zeyuan LIU Xiaokong 2023Chemical Research in Chinese Universities2023,39,5:0
10Packing Adjustment Towards High Mobility Luminescent Conjugated Polymers显示文摘Next generation display and lighting technology calls for thinner,cheaper and more-flexible unit devices.Polymer light emitting transistor(PLET),which integrates logic function of organic field effect transistor(OFET),luminescence function of organic light emitting diode(OLED),and potential mechanical properties,is believed to be the raising star in this field.However,great challenges remain in developing the core materials of PLETs,which simultaneously require the integration of high ambipolar mobility and strong solid-state luminescence properties.Herein,high mobility luminescent thienopyrroledione-benzodiathiadiazole-fluorene-based conjugated polymer was chosen as polymer backbone,and polymers TBT-1 and TBT-2(TBT=thienopyrroledione-benzodiathiadiazole-thienopyrrole-dione)with red luminescence were obtained by direct arylation polymerization(DArP).By introducing linear alkyl side chains,the packing orientation is changed from face-on in TBT-1 thin film to edge-on in TBT-2 thin film,which is beneficial for improving the field effect performance.The average hole and electron mobility of TBT-2 are 1.1×10^(-2)and 2.0×10^(-3)cm^(2)·V^(-1)·s^(-1),respectively.This work provides new design strategy for high mobility luminescent conjugated polymers,which can be used in PLETs.ZHANG Yihan LIU Qingqing GAO Can XIE Ziyi HU Beining DONG Huanli 2023Chemical Research in Chinese Universities2023,39,5:0
11Highly Fluorescent Semiconducting Two-Dimensional Conjugated Polymer Films Achieved by Side-Chain Engineering Showing Large Exciton Diffusion Length显示文摘Semiconducting two-dimensional conjugated polymers(2DCPs)with strong fluorescence emission have great potential for various optoelectronic applications.However,it is enormously challenging to achieve this goal due to the significant compact interlayerπ-πstacking-induced quenching effect in these systems.In this work,we found that highly fluorescent semiconducting 2DCPs can be prepared through an effective side-chain engineering approach in which interlayer spacers are introduced to reduce the fluorescence quenching effect.The obtained two truxene-based 2DCP films that,along with-C6H13 and-C_(12)H_(25)alkyl side chains as interlayer spacers both demonstrate superior fluorescence properties with a high photoluminescence quantum yield of 5.6%and 14.6%,respectively.These are among the highest values currently reported for 2DCP films.Moreover,an ultralong isotropic quasi-twodimensional exciton diffusion length constrained in the plane with its highest value approaching 110 nm was revealed by the transient photoluminescence microscopy technique,suggesting that theπ-conjugated structure in these truxene-based 2DCP films has effectively been extended.This work can enable a broad exploration of highly fluorescent semiconducting 2DCP films for more deeply fundamental properties and optoelectronic device applications.Yongshuai Wang Qing Zhang Xiao-Ze Li Zhibin Shu Yihan Zhang Can Gao Yang Li Hao Liu Chenguang Li Hong-Hua Fang Hong-Bo Sun Xiaotao Zhang Wenping Hu Huanli Dong 2023CCS Chemistry2023,5,10:0
12Highly delocalized endohedral metal in Gd@C2v(9)-C82 metallofullerenes co-crystallized with α-Se显示文摘Cheng Li Xuejiao J. Gao Huanli Yao Huan Huang Rongli Cui Xihong Guo Lele Zhang Bing Liu Binggang Xu Weiqun Shi Jinquan Dong Lai Feng Xingfa Gao Baoyun Sun 2018Nano Research2018,11,4:0
13A new pseudo rubrene analogue with excellent film forming ability显示文摘A novel pseudo rubrene analogue,6,11-di(thiophen-2-yl)-tetracene-5,12-dione (DTTDO) was synthesized,in which two thienyl groups and two carbonyl groups replacing four phenyl groups in the rubrene molecule were connected to the backbone of tetracene.This compound was characterized by single crystal X-ray structure analysis,thermogravimetric analysis,absorption spectra and electrochemical measurements.Unlike rubrene,DTTDO exhibited excellent film forming ability by normal vacuum deposition,indicating its promising applications in organic thin film transistors.ZHANG XiaoTao MENG Qing HE YuDong WANG ChengLiang DONG HuanLi HU WenPing 2011Science China Chemistry2011,54,4:0
14Conjugated polymer crystals via topochemical polymerization显示文摘The discovery and development of conductive polymers in the 1970s by Alan J.Heeger,Alan G.MacDiarmid and Hideki Shirakawa opens the new research field of organic electronics.Over the past decades,conjugated polymers and their applications in various electronic and optoelectronic devices have received considerable attention and studies due to their unique advantages of low cost fabrication methods and mechanical flexibility[1].Zichao Zhang Qingqing Liu Huanli Dong Wenping Hu 2019Science China Chemistry2019,62,10:0
15Effect of Sb-induced oxygen octahedral distortion on piezoelectric performance and thermal stability of Pb(In,Nb)O_(3)-Pb(Hf,Ti)O_(3)ceramics显示文摘The combination of excellent thermal stability and outstanding electrical performance is of great sig-nificance for piezoelectric ceramics.Herein,we have prepared 0.11Pb(In_(0.5)Nb_(0.5))O_(3)-0.89Pb(Hf_(0.47)Ti_(0.53))O_(3)-Sb_(2)O_(5)(PIN-PHT-x Sb)ceramics by solid-phase method and investigated the effect of oxygen octahedral lattice distortion on microstructure and macroscopic electrical properties.The distortion index of oxygen octahedra is studied by Rietveld refinement,showing that optimal octahedral distortion can soften B-O repulsion,disrupt long-range ordered ferroelectric domains,and enhance local heterogeneities,signifi-cantly increasing piezoelectric properties.Moreover,outstanding thermal stability and ultrahigh piezo-electric response of PIN-PHT-1.2Sb ceramics are realized under the synergistic influence of octahedral distortion,excellent density,and large grain size.Compared with PIN-PHT ceramics,PIN-PHT-1.2Sb ce-ramics exhibit ultrahigh piezoelectric responses(d_(33)=706 pC/N,k_(p)=0.68,ε_(r)=3244),a high Curie temperature(T C)of 300℃,excellent thermal stability,and anti-fatigue properties.Huanli Shi Mo Zhao Dongyan Zhang Zhimin Li Maolin Zhang Jingya Wang Li Jin Yangxi Yan 2023Journal of Materials Science & Technology2023,,30:0
16A new LFSR based high-frequency test method for RSFQ circuit显示文摘Rapid single flux quantum(RSFQ)circuits have the advantages of high speed and low power consumption.The typical frequency of the RSFQ circuits is tens of GHz.Therefore,it is necessary to reliably test the highfrequency performance of RSFQ circuits simply and effectively.This paper proposes a new on-chip highfrequency testing method,which uses pseudo-random sequences generated by linear feedback shift register(LFSR)as the test vectors,and the output shift registers(SRs)to store the last piece of high-frequency testing result and read out it at low-frequency.Unlike the traditional high-frequency demonstration method of using the Input/Output SRs,our testing system can automatically generate a large number of test vectors to test the circuit at high frequency at low cost,making the whole high-frequency demonstration more reliable and convincing.On the other hand,this method is also a feasible and straightforward on-chip high-frequency test method for various RSFQ circuits.This work verified the proposed method,and the highest test frequency can reach 54 GHz while the circuit shows good operating margins.Liyun Chen Songrui Li Liliang Ying Minghui Niu Huanli Liu Hui Zhang Xue Zhang Xiaoping Gao Jie Ren Wei Peng Zhen Wang 2022Superconductivity2022,,2:0
17Hexyl substitution of pentathienoacene toward a significant improvement in charge transport显示文摘A novel semiconductor, dihexyl-substituted pentathienoacene(C6-PTA) is designed and synthesized in five steps with the total yield up to 25.2%. The introduction of hexyl chains endow the thin film semiconductor with about threefold increase in carrier mobility and one to three orders of magnitude improvement in current on/off ratio. Furthermore, single crystal FETs based on C6-PTA exhibited mobility up to 0.64 cm^2 V^(-1) s^(-1), which is over 50 times higher than the thin film counterpart. The results indicate clearly that C6-PTA is a promising organic semiconductor with high stability.Ping He Hantang Zhang Chunhui Xu Yonggang Zhen Huanli Dong Wenping Hu 2019Chinese Chemical Letters2019,30,4:0
18Efficient Construction of Highly-fused Diperylene Bismides by Cu/Oxalic Diamide-promoted Zipper-mode Double C—H Activation显示文摘Copper/oxalic diamide-promoted dimerization of tetrachlorinated perylene bisimide to construct highly-fused diperylene bisimides through Ullmann coupling and zipper-mode double C—H activation has been developed in this study.This one-step reaction combining homocoupling with C—H activation proceeded smoothly under the action of inexpensive metal-ligand system.This protocol is expected to expand the available synthetic tools for condensed ring systems of perylene bisimide(PBIs).LU Xiuqiang LIN Hui ZHEN Yonggang DONG Huanli ZHANG Xiaotao HU Wenping 2020Chemical Research in Chinese Universities2020,36,1:0
19Efficient energy transfer in organic light-emitting transistor with tunable wavelength显示文摘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 tunability.Here,we report a novel device configuration called the energy transfer organic light-emitting transistor(ET-OLET)that is intended to overcome these challenges.An 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 unnecessary.In 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 annihilation.In addition,the emission color can be tuned from blue to white to green-yellow using the sourcedrain and gate voltages.The proposed structure is promising for use with electrically pumped organic lasers.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 2022Nano Research2022,15,4:0
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