简介：量监禁效果在nanoelectronics和光电子应用是重要的；然而，在量监禁的理论之间有差异，它显示拓宽的乐队差距仅仅在在大直径的nanowires(NW)拓宽的乐队差距的小尺寸，和试验性的观察发生。这份报纸在紫外可见的吸收系列报导吸收边的明显的蓝移动原文如此有50-300nm的直径的NW。根据量监禁，理论和高分辨率的传播电子显微镜学想象原文如此NW，拓宽在的乐队差距原文如此，有多达几百纳米的直径的NW充分被解释；结果能帮助解释与大直径在另外的NW拓宽的类似的乐队差距。

简介：Surfaceeffectsonthepersistencelengthofquasi-one-dimensionalnanomaterialsareinvestigatedbyusingthetheoryofsurfaceelasticityandthecore–shellmodelofnanobeams.Asimpleandunifiedexpressionisprovidedtodeterminethepersistencelengthofnanowiresandnanotubeswithanyregularpolygonalcross-sections.Itisdemonstratedthatsurfaceeffectshaveadistinctinfluenceonthepersistencelengthwhenthecharacteristicsizesofmaterialsshrinktonanometers.Thisworkishelpfulnotonlyforunderstandingthesize-dependentbehaviorofnanomaterialsbutalsoforthedesignofdevicesbasedonnanotubesornanowires.

简介：大规模轧了nanowires被ammoniatingGa2O3电影成功地在在850点在Si(111)底层上扔的Nb层上综合。X光检查衍射(XRD)，扫描电子显微镜学(SEM)，field-emssion传播电子显微镜(FETEM)，Fourier转变了红外线的光谱(FTIR)被用来描绘结构、词法的性质同样综合轧了nanowires。结果表明nanowires是纯的六角形与在50nm和100nm之间的一段大约几微米和一条直径轧了wurtzite结构。最后，简短讨论了是镓氮化物nanowires的形成机制。

简介：Amicrofluidicsystemwasdevelopedforthesynthesisoftrigonalselenium(t-Se)nanowires,whichwascomposedofaglassmicrochipcoupledwithapoly(methylmethacrylate)(PMMA)microchip.Intheglassmicrochip,amorphousselenium(a-Se)colloidwaspreparedbyreducingseleniousacidwithanexcessamountofhydrazineatatemperatureof100℃.InthecoupledPMMAmicrochip,a-Sewastransformedintomorestablet-Seseedsviasonicationatroomtemperature.Theresidencetimeofthereactantsinbothmicrochipswasoptimizedbyvaryingthedimensionandlengthofthemicrochanneleach.Thet-Senanowireswereformedbyanisotropicgrowthofseleniumcrystalliteduringsonicationandagingundertheassistanceofβ-cyclodextrin(β-CD).Variousstagesofthenanowires'growthwereinvestigated.Theas-synthesizedproductswerecharacterizedbypowderX-Raydiffraction(XRD),Ramanspectroscopy,scanningelectronmicroscopy(SEM),transmissionelectronmicroscopy(TEM)andselected-areaelectrondiffraction(SAED).

简介：ThemagnetizationreversalmechanismsforNinanowireswithdifferentdiameterswereinvestigatedbymi-cromagneticsimulations.Theresultsshowthatthereversalmechanismsaresignificantlydependentonthediameterofwire.Forverythinwires,thereversaloccursbypseudo-coherentrotation.Withincreasingdiam-eter,magnetizationreversaltakesplaceviadifferentnucleation(thetransversedomainwallandthevortexdomainwall)andsubsequentpropagation.Thereasonoftransitionfromthetransversedomainwalltothevortexdomainwallisgivenbyanalyticalstudies.Withfurtherincreaseofthediameter,thereversalnucleardomainwallbecomestundish-shapedform.Asthediameterincreases,thewidthofwallbecomeslarger.

简介：这研究的目的是用作为矩阵树脂作为传导性的fillers和修改环氧基树脂的organosilicone树脂经由solvothermal方法准备的银nanowires开发传导性的粘合剂。电的传导性的粘合剂和机械性质上的银nanowires/flakes的增加的效果被调查。与有银薄片fillers的常规传导性的粘合剂相比，有银nanowiresfillers的传导性的粘合剂的过滤阀值是10?%近似降低。然而，银nanowires的内容的进一步的上升没在传导性的粘合剂的电的传导性的改进上有明显的影响。传导性的粘合剂的传导性、机械的性质能由增加银nanowires是兼容的，哪个传统的银传导性的粘合剂reach.Graphical不能提炼银nanowires，舒适形态学经由alcohothermal准备了方法被介绍进传导性的粘合剂作文。它能被发现尽管存在，发现银nanowires在传导性的粘合剂相当被重叠crosslinking到某程度，然而，银nanowires不出现凝块的现象。有传导性的fillers能展出有利电、机械的性质的银nanowires的传导性的粘合剂。

简介：传导性的Au-biopolymercomposites在象神经织物那样的织物工程有有希望的应用新生。在这研究，丝绸丝心蛋白nanofibers被调整丝绸在水的答案形成自己组装进程然后为Aunanowire用作模板制造。我们由重复播种周期执行了Au种子的合成因为若干次Au的密度在nanofibers上播种以便增加。在无电的plating以后，浓密地装饰了种子种了进跟随丝绸nanofiber充满在粒子之间的差距并且最后形成一致连续nanowires的不规则地塑造的粒子的Au。Au丝绸丝心蛋白nanowires的传导性的性质被学习与当前电压(IV)测量。典型欧姆的行为被观察，它在神经织物新生加亮他们的潜在的应用。

简介：Waveguidingpropertiesofsilicananowiresinvariousenvironmentsarestudiedbysolvingtheeigenvalueequationsofacircularcross-sectionwaveguidenumericallyincylindricalcoordinates.Thesingle-modecondition,propagationconstants,poyntingvectorandpowerdistributioninsideandoutsidesilicananowirearecalculated.Theresultsshowthatsilicananowiresinwater,comparedwithsilicananowiresinair,havehigherfractionoftheevanescentfields.Duetothesensitivitytosurroundingenvironment,silicananowiresareverysuitableforsensingelements,whichcanbeusedtoimplementasingle-modefiberopticevanescentwavesensingelementofhighlysensitiveandaccuratemeasurement.

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简介：Thisstudydemonstratesanovelapproachforrapidsynthesisofsilver（Ag）nanowiresinducedbyvanadiumtrioxide（V2O3）particlesinaqueoussolutionatroomtemperature.Silvernanowireshaveanaveragediameterof20nmandlengthuptoafewmicrometersbyparametricoptimization.ThemicrostructureofthesilvernanowireswascharacterizedbyTEM,HRTEM,SEM,andXRDtechniques.Theopticalpropertyoftheas-preparedproductwasmeasuredbyultraviolet-visible（UV-vis）spectroscopy.ThepossiblegrowthmechanismofAgnanowiresviaorientedattachmentofAgnanocrystalswasdiscussed.Thepresentapproachshowsseveraluniquefeaturessuchasrapid（afewminutes）,reproducibleandhigh-yieldreactionwithnoneedofanymodifiers.V2O3rodswerereportedforthefirsttimetobeusedforsynthesisofsilvernanowires,playingmultiplerolesasreducingagent,template,andcatalyst.Thesilvernanowiresproducedarepromisingforopticalapplications（e.g.,SERS）duetotheirroughsurface.

简介：Nanowireshavebeenprovedtobeexcellentcandidatesforfuturenanodevicesfortheiradvantagesofbeingthesmallestchargecarrier,enablingabundantchoiceofmaterials,andrelatedsize,surfaceandquantumeffects.Nanowiresthusplayimportantroletounderstandthephysicalphenomenabetweenmacro-scaleNewtonworldandthemicro-scalequantummechanicalworld.Ourgroupisamongthefewpioneersinearly1998'sindevelopingmethodsforsynthesisofsiliconnanowires,andextendingthenanowiresynt...

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简介：Silvernanowires（AgNWs）withdiameterof90--150nmandlengthof20--50μmweresuccessfullysynthesizedbyapolyolprocess.Grapheneoxide（GO）waspreparedbyHummersmethod,andwasreducedwithstronghydrazinehy-drateatroomtemperature.Theflexibletransparentconductivefilms（TCFs）werefabricatedusingthemixedcelluloseeater（MCE）asmatrixandAgNWsandreducedgrapheneoxide（rGO）asconductivefillersbytheimprovedvacuumfiltrationprocess.Then,theoptical,electricalandmechanicalpropertiesoftheAgNWs-rGOfilmswereinvestigated.TheresultsshowthatfortheAgNWs-rGOfilmproducedwiththedepositiondensitiesofAgNWsandrGOas110mg.m2and55mg·m^-2,theopticaltransmissionat550nmis88.4%withRsaround891Ω·sql,whereastheopti-caltransmissionfortheAgNWs-rGOfilmwithdepositiondensitiesofAgNWsandrGOof385mg·m^-2and55mg·m^-2is79.0%at550nmwithRsaround9.6Ω·sql.ThereislittleovertincreaseinRsoftheAgNWS-rGOfilmaftertapetestsfor200times.ThebendingtestresultsindicatethatthechangeinRsofAgNWs-MCEfilmislessthan2%evenafter200cyclesofcompressiveortensilebending.TheexcellentmechanicalpropertiesoftheAgNWs-rGOfilmcanbeattributedtotheburyingofAgNWsandrGOatthesurfaceofMCE.

简介：Magnesiumoxide(MgO)nanowiresweresynthesizedonthegold-coatedSi(100)andMgO(100)substratesatlowertemperature(600℃)bypulsedliquidinjectionmetalorganicchemicalvapordeposition(MOCVD).Thegoldcatalystcouldbefoundonthetipsofnanowires,whichpresentsthevapor-liquid-solid(VLS)growthmechanism.Reactivespecies(oxygenormagnesium)havestrongeffectsonthegrowthofnanowires.Abundantreactivespecieskilltheverticallyalignednanowirestoberandomlyalignedonesorevenchangetheverticalgrowthmodetothehorizontalgrowthmodewithsurface-parallelnanowires.Usually,nanowireswithlargeraspectratio(>10,aspectratio=length/diameter),higherdensity(>500/μm2)andsmallerdiameter(≤20nm)canbeeasilysynthesizedwithlongerinjectionperiod(≥2s),smallerinjectionmass/period(≤4.6mg)andsuitableoxygenpartialpressure(2.4Torr).

简介：Afacilecatalysis-freemethodwasutilizedtosynthesizefunctionalneodymiumhexaboride(NdB6)nanowiresofsinglecrystalusingNdpowdersandBCl3asstartingmaterials.TheXRDpatternconfirmedthatasinglephaseNdB6couldbeobtained.Raman-spectraelucidatedtheactivevibrationalmodesofthehexaborides.TheTEMimagesclearlyshowedthatthehexaboridesweresubmicroninsizewithacubicmorphology.Thefieldemissionoftheseone-dimensionalNdB6nanowiresshowedalowfieldemissionturn-on(5.55V/μmatacurrentdensityof10μA/cm2),andhighcurrentdensitywithafieldenhancementfactorof1037.TheemissioncurrentdensityandtheelectricfieldfollowedtheFowler-Nordheim(F-N)relationship.Thegoodperformanceforfieldemissionwasattributedtothesingle-crystallinestructureandthenanowiregeometry.

简介：ZnOnanowiresdepositedonSisubstrateswerepreparedbythermalevaporationofamixtureofZnOandcarbonpowder.Agionswithanenergyof63keVandadoseof5×1015ions/cm-2wereimplantedintotheas-preparedZnOnanowires.Afterionimplantation,theAg-implantedZnOnanowireswereannealedinairatdifferenttemperaturesfrom600℃to1000℃.Effectsofionimplantationandthermalannealingonthestructuralandphotoluminescent(PL)propertiesoftheZnOnanowireswereinvestigatedbytransmissionelectronmicroscopy(TEM),selectedareaenergydispersiveX-rayspectroscopy(SAEDX),X-raydiffraction(XRD),andfluorescencespectrophotometry.TEM,HR-TEM,andSAEDXanalysesdemonstratedthatefficientdopingofAgwasachievedbyionimplantationandthesubsequentannealingprocess.XRDpatternsrevealedthatthehexagonalwurtzitestructureofZnOnanowireswasmaintainedafterionimplantation.PhotoluminescentemissionsofZnOnanowiresweredecreasedsignificantlybyAgimplantationbutcouldberecoveredbythermalannealing.ThemechanismoftheinfluenceofionimplantationandannealingonthePLintensitywasassessed.

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简介：Recently,theirradiationeffectsinnanomaterialshavebeenahottopicinnanoscience.Althoughirradiationinduceddamageshavebeenstudyingforalongtime,verylimitedresearchhasbeenperformedonthedamagesinducedbyMeV-energyheavyionsingoldnanowires(NWs).Inthiswork,wereportastudyoftheirradiationeffectsonsinglecrystallinegoldNWs,whicharefabricatedelectrochemicallyintheetchediontracktemplates.Theas-preparedgoldNWsontheAu/CusubstratewerecharacterizedbySEMafterdissolvingthepolycarbonate(PC)template,asshowninFig.1(a).GoldNWswithdiametersfrom20to90nmwerefabricatedtostudythesizedependenceofirradiationdamageinducedbytheheavyions.ToguaranteethatthedifferentNWscouldobtainthesameirradiationfluence,theNWswithdifferentdiametersweremixedtogetherandtransferredtotheTEMgrid,asshowninFig.1(b).

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