典型文献
Switch type PANI/ZnO core-shell microwire heterojunction for UV photodetection
文献摘要：
In this study,single crystal ZnO microwires(MW)with size of～5.4 mm×30 μm are prepared through a chemical vapor deposition technique at high temperature(1200℃).Subsequently,p-type conducting polyaniline(PANI)polymers with different conductivities are densely coated on part of the ZnO MW to construct organic/inorganic core-shell heterojunction photodetectors.The hetero-diodes reach an ex-tremely high rectification ratio(I+3V/I-3V)of 749230,and a maximum rejection ratio(I350nm/Idark)of 3556(at-3 V),indicating great potential as rectified switches.All the heterojunction devices exhibit strong response to ultraviolet(UV)radiation with high response speed.Moreover,the obvious photovoltaic be-havior can also be obtained,allowing the device to operate as an independent and stable unit without externally supplied power.Under 0 V bias voltage,the self-powered photodetector shows a maximum re-sponsivity of 0.56 mA W-1 and a rapid response speed of 0.11 ms/1.45 ms(rise time/decay time).Finally,a finite difference time domain(FDTD)simulation is performed to further demonstrate the interaction mechanism between the incident light field and the hexagonal cavity,which strongly supports the en-hancement of the light absorption in whispering-gallery-mode resonator.
文献关键词：
中图分类号：
作者姓名：
Yihan Chen;Longxing Su;Mingming Jiang;Xiaosheng Fang
作者机构：
Department of Materials Science,Fudan University,Shanghai 200433,China;Department of Physical Science and Technology,ShanghaiTech University,Shanghai 201210,China;College of Science,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China
文献出处：
引用格式：
[1]Yihan Chen;Longxing Su;Mingming Jiang;Xiaosheng Fang-.Switch type PANI/ZnO core-shell microwire heterojunction for UV photodetection)[J].材料科学技术（英文版）,2022(10):259-265
A类：
I+3V,I350nm,Idark,sponsivity
B类：
Switch,type,PANI,ZnO,core,shell,heterojunction,UV,photodetection,In,this,study,single,crystal,microwires,MW,size,prepared,through,chemical,vapor,deposition,technique,high,temperature,Subsequently,conducting,polyaniline,polymers,different,conductivities,densely,coated,part,construct,inorganic,photodetectors,diodes,reach,tremely,rectification,ratio,maximum,rejection,indicating,great,potential,rectified,switches,All,devices,exhibit,response,ultraviolet,radiation,speed,Moreover,obvious,photovoltaic,havior,can,also,obtained,allowing,operate,independent,stable,unit,without,externally,supplied,Under,bias,voltage,self,powered,shows,mA,rapid,ms,rise,decay,Finally,finite,difference,domain,FDTD,simulation,performed,further,demonstrate,interaction,mechanism,between,incident,light,field,hexagonal,cavity,which,strongly,supports,hancement,absorption,whispering,gallery,mode,resonator
AB值：
0.647784
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