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| 1 | Tailoring spontaneous infrared emission of HgTe quantum dots with laser-printed plasmonic arrays显示文摘Chemically synthesized near-infrared to mid-infrared(IR)colloidal quantum dots(QDs)offer a promising platform for the realization of devices including emitters,detectors,security,and sensor systems.However,at longer wavelengths,the quantum yield of such QDs decreases as the radiative emission rate drops following Fermi’s golden rule,while non-radiative recombination channels compete with light emission.Control over the radiative and non-radiative channels of the IR-emitting QDs is crucially important to improve the performance of IR-range devices.Here,we demonstrate strong enhancement of the spontaneous emission rate of near-to mid-IR HgTe QDs coupled to periodically arranged plasmonic nanoantennas,in the form of nanobumps,produced on the surface of glasssupported Au films via ablation-free direct femtosecond laser printing.The enhancement is achieved by simultaneous radiative coupling of the emission that spectrally matches the first-order lattice resonance of the arrays,as well as more efficient photoluminescence excitation provided by coupling of the pump radiation to the local surface plasmon resonances of the isolated nanoantennas.Moreover,coupling of the HgTe QDs to the lattice plasmons reduces the influence of non-radiative decay losses mediated by the formation of polarons formed between QD surface-trapped carriers and the IR absorption bands of dodecanethiol used as a ligand on the QDs,allowing us to improve the shape of the emission spectrum through a reduction in the spectral dip related to this ligand coupling.Considering the ease of the chemical synthesis and processing of the HgTe QDs combined with the scalability of the direct laser fabrication of nanoantennas with tailored plasmonic responses,our results provide an important step towards the design of IR-range devices for various applications. | A.A.Sergeev D.V.Pavlov A.A.Kuchmizhak M.V.Lapine W.K.Yiu Y.Dong N.Ke S.Juodkazis N.Zhao S.V.Kershaw A.L.Rogach | 2020 | Light(Science & Applications)2020，9，1： | 5 |
| 2 | Correlation between microstructure and mechanical properties of columnar crystals in the directionally solidified Mg-Gd-Y-Er alloy显示文摘The Mg-4.58Gd-0.45Y-0.01 Er alloys with different volume fractions of columnar crystals in hard orientation(orientation factor ofbasal plane slip system is less than 0.2)were prepared by changing the pulling rate to regulate the crystal growth orientation.Tensile tests were performed on the Mg-4.58Gd-0.45Y-0.01 Er alloy at room temperature,and the structure after deformation was investigated by electron backscatter diffraction(EBSD).Subsequently,the strengthening mechanism of columnar crystals in hard orientation was explored.The results show if orientation factors ofbasal plane slip system of columnar crystals are all greater than 0.4(soft orientation),the alloy has low yield strength σ_(s)(64 MPa),but great work hardening ability,and ultimate tensile strength σ_(b) and elongationδare 114 MPa and 37.3%,respectively.If orientation factors ofbasal plane slip system of columnar crystals are all less than 0.2(hard orientation),the alloy has high strength(σ_(s),125 MPa),but poor plasticity(δ,6.32%).If the'hard orientation'and the'soft orientation'columnar crystals are arranged alternately along the direction perpendicular to the crystal growth,the alloy has both superior strength(σ_(s),102 MPa)and excellent plasticity(δ,22.5%)at room temperature.The improved comprehensive mechanical property can be attributed to two factors.On the one hand,the'hard orientation'columnar crystals can prevent the'soft orientation'crystals deforming,so the strength is improved.On the other hand,the'hard orientation'columnar crystals themselves can withstand a certain amount of deformation to retain appropriate plasticity. | D.R.Fang S.S.Zhao X.P.Lin T.Chai Y.Kuo H.Sun Y.Dong | 2022 | Journal of Magnesium and Alloys2022，10，3： | 2 |
| 3 | STUDY ON THE STABILITY OF T'PHASE IN THE Al-Zn-Cu TERNARY SYSTEM显示文摘The phase constitutes and phase compositions in the eight alloys designed with different compositions of Al-Zn-Cu system have been determined after the homogenous treatment and then equilibrium cooling to 20℃ by use of optical microscope, electron probe microanalysis and X-ray diffraction. It has been found that there existed the T phase in the seven alloys. Consequently, it was testified that the T phase was stable at room temperature. At the same time, the phase relationship was not locally right for the isothermal section of 20℃ of Al-Zn-Cu system of the ASM published in 1997. | H.Chen X. Xin D. Y.Dong Y.P. Ren S.M.Hao | 2004 | Acta Metallurgica Sinica(English Letters)2004，17，3： | 2 |
| 4 | Rotational and translational domains of beta precipitate in aged binary Mg-Ce alloys显示文摘The structural evolution fromβ_(1)(Mg_(3)Ce)toβ(Mg_(12)Ce)precipitates,which takes place at the over-aged stage of binary Mg-Ce alloys,are investigated by high-angle annular dark-field scanning transmission electron microscopy.The structural transformation mainly occurs in the{111}_(β1)crystallographic planes,where the newly formedβlattices exhibit two categories of domain structures,namely rotational and translational domains.The rotational domain is composed of threeβdomains(β_(RA),β_(RB)andβ_(RC)),which are related by a 120°rotation with respect to each other around the 111_(β1)axis of theirβ_(1)parent phase.The{111}_(β1)crystallographic planes can provide four sets of sublattices with the same orientation for an initial nucleation ofβlattice.It leads to the formation of four translationalβdomains(β_(TA),β_(TB),β_(TC)andβ_(TD)),among which any two differ by a vector of 1/6112_(β1).We deduce theoretically that there exist twenty-fourβdomains during this transition.However,considering the interfacial misfit,only one-third of domains can grow up and eventually formsβribbon.Furthermore,a majority ofβribbons overlap partiallyβ_(1)plate,which is beneficial to relax interfacial strain amongβ,β_(1)andα-Mg matrix(α/β/β_(1)).The configuration of multipleβdomains can effectively regulate interfacial misfit ofα/βandβ/β_(1),which are responsible for enhancing the hardness and strength of Mg-Ce alloy.Additionally,this study aims to provide some clues to improve the over-aged performance of magnesium alloys by constructingβdomains and optimizing theα/β/β_(1)interface. | B.Z.Sun H.X.Zhang Y.Dong J.X.Ren Y.Tian G.M.Xie J.Tan Y.H.Sun Na Xiao | 2021 | Journal of Magnesium and Alloys2021，9，3： | 2 |
| 5 | COMPARISON OF THE EFFECTS OF DIFFERENT STRENGTHENING NETS IN MAXILLARY COMPLETE DENTURE RESIN BASE BY THREE-DIMENSIONAL FINITE ELEMENT METHODS显示文摘Diastema often occured in maxillary complete denture resin base in the clinic,although ' Lucitone 199' had been used with more tensile strength.Mechanical ex-periments have proved the high transverse tensile stress (σ_x^+) concentrating in anteri-or teeth region and their palatal surface of maxillary complete denture resin basewhile it was exposed to vertical loading in center occlusion.Setting strengtheningnet in resin base has achieved better results.For evaluating purpose,twenty | Y.B.Wang~1 Y.Dong~1 S.F.Zhang~1 J.S.Liu~2 Y.G.Zheng~21 Department of Prosthodontic,Stomatological College,4th Military medical University,Xi’an 710032,China2 401 Research Institute,Xi’an Electrical Science and Technology University,Xi’an 710054,China | 1993 | Chinese Journal of Biomedical Engineering(English Edition)1993，2，3： | 2 |
| 6 | Horseradish peroxidase functionalized fluorescent gold nanoclusters for hydrogen peroxide sensing显示文摘 | F.Wen Y.Dong L.Feng | | 0，，83： | 1 |
| 7 | 查看详情显示文摘 | Z.H.Wang Y.Dong T.Wang | | 0，，： | 1 |
| 8 | Towards Better Coordination of the Supply Chain显示文摘 | Xu K Y.Dong | | 0，，： | 1 |
| 9 | Effects of Monochromatic Light on Proliferation Response of Splencyte in Broilers显示文摘 | D.Xie Z.Wang J.Cao Y.Dong Y.Chen | 2008 | Anatomia, Histologia, Embryologia2008，，5： | 1 |
| 10 | Horseradish peroxidase functionalized fluorescent gold nanoclusters for hydrogen peroxide sensing显示文摘 | F.Wen Y.Dong L.Feng | | 0，，83： | 1 |
| 11 | CRYSTALLOGRAPHIC ANALYSIS OF THE LATH MARTENSITE TRANSFORMATION IN Fe-Ni-Mn ALLOY显示文摘Habit plane rotation of lath martensite transformation in Fe-Ni-Mn alloy was predicted by means of Displacement Vector Theory. Its surface relief effect was observed and a math model for the quantitative analysis of habit plane rotation of lath martensite transformation was established by means of atomic force microscopy (AFM). The experiment showed that the largest rotation of habit plane of lath martensite transformation predicted by means of Displacement Vector Theory is 13.50°, and it’s incompatible with the concept of invariant plane strain (IPS); surface relief of lath martensite revealed no character of IPS, i.e. it exhibited irregular 'N'-shaped 'surface relief packet', and 'surface relief packet' was composed of layers of several small surface reliefs, the AFM quantitative analysis of habit plane rotation of lath martensite transformation was 11.11°, which was in agreement with the prediction of Displacement Vector Theory (13.50°) and it firmly confirmed the habit plane rotation of lath martensite transformation and the correctness of Displacement Vector Theory. | X.P.Lin Y.Dong X.M.Cao Y.Zhang N.J.Gu X.L.Ma | 2004 | Acta Metallurgica Sinica(English Letters)2004，17，6： | 0 |
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