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6篇 您的检索式:作者名="Mei Zengxia"
    题名 作者 年代 出处 被引量
1Con trolled growth of high-quality ZnO-based films and fabrica tion of visible-blind and solar-blind ultra-violet detectors 显示文摘Du Xiaolong Mei Zengxia Liu Zhanglong 2009Advanced Materials2009,21,45:1
2Surface plasmon enhanced solar-blind photoresponse of Ga2O3 film with Ga nanospheres显示文摘Semiconductor solar-blind(220-280 nm)photodetectors(PDs),which have important applications both in civil and military aspects,are mainly based on diamond[1],Al Ga N[2],Mg Zn O[3],and Ga_2O_3[4-11].Among these materials,Ga_2O_3has a direct band gap(~4.9 e V)just falling in solarblind spectral range,which makes Ga_2O_3a desirable candidate for solar-blind photodetection.Up to now,many kinds of Ga_2O_3PDs have been demonstrated including bulk[4,5],film[6-8]and nanostructures[9-11],as summarized in Table 1.From the summary,we can see although bulkShujuan Cui Zengxia Mei Yaonan Hou Muhua Sun Quansheng Chen Huili Liang Yonghui Zhang Xuedong Bai Xiaolong Du 2018Science China(Physics,Mechanics & Astronomy)2018,61,10:0
3GaZn-VZn acceptor complex defect in Ga-doped ZnO显示文摘Gallium(Ga)-doped Zn O is regarded as a promising plasmonic material with a wide range of applications in plasmonics. In this study, zinc self-diffusion experiments are adopted to disclose the nature of the dominant compensating defect in Ga-doped Zn O isotopic heterostructures. The(Ga_(Zn)-V_(Zn))^- complex defect, instead of the isolated V_(Zn)^(2-), is identified as the predominant compensating acceptor center responsible for the low donor doping efficiency. The comparative diffusion experiments operated by the secondary ion mass spectrometry reveal a ~0.78 e V binding energy of this complex defect, which well matches the electrical activation energy derived from the temperature-dependent Hall effect measurements(^(0.82±0.02) e V). These findings contribute to an essential understanding of the(Ga_(Zn)-V_(Zn))^- complex defect and the potential engineering routes of heavily Ga-doped ZnO.AiHua Tang ZengXia Mei YaoNan Hou LiShu Liu Vishnukanthan Venkatachalapathy Alexander Azarov Andrej Kuznetsov XiaoLong Du 2018Science China(Physics,Mechanics & Astronomy)2018,61,7:0
4Strain-enhanced polarization sensitivity inβ-Ga_(2)O_(3)photodetector显示文摘Polarization-sensitive photodetection and imaging have great application value in fields such as polarization division multiplexing optical communication,remote sensing,near-field imaging and military monitoring.Pursuing a high polarization ratio has always been the research hotspot in polarization-sensitive photodetectors.In this paper,we report a compression strain enhanced polarization ratio inβ-gallium oxide(β-Ga_(2)O_(3))single crystal flake.A rigorous crystallographic analysis confirmed its high crystalline quality and orientation.Angle-resolved polarization Raman spectroscopy(ARPRS)was adopted to study the anisotropy of its optical properties.Extensive ARPRS measurements and theoretical calculation consistently demonstrate the strong optical anisotropy in the high-qualityβ-Ga_(2)O_(3)flake.A polarization ratio of 0.96 was obtained in the flatβ-Ga_(2)O_(3)flake.Furthermore,mechanical strain of±0.7%was introduced intoβ-Ga_(2)O_(3).An increased polarization ratio of 0.98 was achieved in the case of 0.7%compression strain,which is,to the best of our knowledge,the highest value for UVC polarization-sensitive photodetectors.That corresponds to an improved polarization rejection ratio of 100.This work proposed a new path towards improving polarization sensitivity by applying strain engineering in the active material.Yonghui Zhang Huili Liang Fei Xing Qiqian Gao Yu Feng Yuping Sun Zengxia Mei 2024Science China(Physics,Mechanics & Astronomy)2024,67,4:0
5An innovative model for the transient response of a spherical thin-shell transducer and an experimental confirmation显示文摘A unique characteristic of piezoelectric materials is their ability of electric-mechanical transduction and converting mechanical energy to electrical energy or vice versa. This remarkable property, embedded in piezoelectric materials,has been exploited to construct a wide variety ofAiHua Tang ZengXia Mei WenXing Huo XiaoLong Du 2018Science China(Physics,Mechanics & Astronomy)2018,61,11:0
6Spatial Distribution Pattern of Batocera horsfieldi Attacking Ash Trees in Different Forests显示文摘[Objective]The paper was to study the spatial distribution of Batocera horsfieldi in different ash forests.[Method]The number of excretory holes,eclosion holes and channels of B.horsfieldi in five different stand types of ash forests(patch forest,yard greening forest,highway street forest,urban street forest and yard street forest)was investigated,and their spatial distribution characteristics were statistically analyzed.[Result]The aggregation index,Iwao regression equation and Taylor power exponential equation were calculated.The excretory holes,eclosion holes and channels of B.horsfieldi attacking five different stand types of ash forests showed aggregated distribution,but the aggregation index parameters,αandβof Iwao regression equation,lga and b of Taylor power exponential equation varied with different stand types.[Conclusion]B.horsfieldi has caused serious harms to ash tree which is an important landscaping tree in the Yellow River delta area,and it is of guiding value to sampling investigation and prevention and control of B.horsfieldi.Mei Zengxia 2020Plant Diseases and Pests2020,11,2:0
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