下载本文档
版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领
文档简介
硅纳米线表面外延生长银纳米颗粒的研究及应用的中期报告Abstract:Inthisreport,wepresentourfindingsontheresearchofthesurfacegrowthofsilvernanoparticlesonsiliconnanowiresbyepitaxyandtheirpotentialapplications.Thestudyinvolvedthepreparationofsiliconnanowiresusingthechemicalvapordeposition(CVD)method,followedbythegrowthofsilvernanoparticlesontheirsurfaceusingthewet-chemicalmethod.Themorphologyandmicrostructureofthenanowireswereinvestigatedusingscanningelectronmicroscopy(SEM),transmissionelectronmicroscopy(TEM),andX-raydiffraction(XRD)techniques.Ourresultsshowthatthesilvernanoparticlesgrewpreferentiallyonthesurfaceofthesiliconnanowires,forminguniformandwell-dispersedparticles.Thesizeanddensityoftheparticleswerecontrolledbyadjustingtheconcentrationofthesilverprecursorusedduringthegrowthprocess.Thegrowthmechanismofthesilvernanoparticlesonthesiliconnanowireswasalsoinvestigatedbasedontheexperimentalobservations.Finally,thepotentialapplicationsofthesesilver-decoratedsiliconnanowireswereexplored,suchasinthefieldsofsolarcells,sensors,andnanoelectronics.Ourpreliminarydatasuggestthatthesesilver-decoratedsiliconnanowiresexhibitenhancedlightabsorptionandelectricalpropertiesandhavegreatpotentialforuseintheaforementionedapplications.Introduction:Siliconnanowires(SiNWs)havebeenextensivelystudiedoverthepastfewdecadesduetotheiruniquephysicalandchemicalproperties,aswellastheirpotentialapplicationsinvariousfieldssuchaselectronics,photonics,andsensors.Epitaxialgrowthofmetalnanoparticlesonsemiconductornanowiresrepresentsapromisingstrategyforfabricatinghybridnanostructureswithnovelfunctionalities.Silvernanoparticles(AgNPs)arewidelyusedinvariousfieldssuchascatalysis,biomedicine,andnanoelectronicsduetotheirexcellentopticalandelectronicproperties.ThegrowthofAgNPsonSiNWsbyepitaxyhasbeeninvestigatedpreviouslyandhasshownpotentialforapplications,suchasinplasmonicdevicesandnanoelectroniccircuits.Inthisstudy,weaimedtoinvestigatethesurfacegrowthofAgNPsonSiNWsbyawet-chemicalmethodandexploretheirpotentialapplicationsinsolarcells,sensors,andnanoelectronics.Experimental:Thenanowiresweresynthesizedbyachemicalvapordeposition(CVD)processusingSiH4astheprecursorandAunanoparticlesascatalysts.AfterthegrowthofSiNWs,theyweretransferredtoasolutionofAgNO3andHCHOandstirredfor2hourstopromotethegrowthofAgNPsonthesurfaceoftheSiNWs.ThemorphologyandmicrostructureoftheSiNWswereinvestigatedusingscanningelectronmicroscopy(SEM),transmissionelectronmicroscopy(TEM),andX-raydiffraction(XRD)techniques.ThesizeanddensityoftheAgNPswerecontrolledbyadjustingtheconcentrationoftheAgNO3usedinthegrowthsolution.ResultsandDiscussion:SEMandTEMimagesshowedthattheSiNWshadauniformdiameterofabout50nmandwerecoveredwithwell-dispersedAgNPs,whichweresphericalinshapewithanaveragesizeof15nm(Figure1).TheXRDpatternoftheAg-decoratedSiNWsshowedpeakscorrespondingtobothSiandAgphases,indicatingtheepitaxialgrowthofAgNPsontheSiNWs(Figure2).ThegrowthmechanismofAgNPsonSiNWswasinvestigatedbasedontheexperimentalobservations.ItwasfoundthattheAgNPsfirstnucleatedonthesurfaceoftheSiNWsandthengrewinaself-assemblymanner,whichresultedintheformationofwell-dispersedNPs.ThepotentialapplicationsofAg-decoratedSiNWswereexploredbyinvestigatingtheirenhancedlightabsorptionandelectricalproperties.ThelightabsorptionoftheAg-decoratedSiNWswasenhancedduetotheplasmoniceffectoftheAgNPs,whichefficientlytrappedandabsorbedlightwithintheSiNWs.TheelectricalpropertiesoftheSiNWswereimprovedduetotheformationofaSchottkyjunctionbetweentheAgNPsandtheSiNWs.Conclusion:WehaveinvestigatedthesurfacegrowthofAgNPsonSiNWsbyawet-chemicalmethodandexploredtheirpotentialapplicationsinsolarcells,sensors,andnanoelectronics.OurresultsshowthattheAgNPsgrewuniformlyontheSiNWs,andthesizeanddensityoftheparticlescouldbecontrolledbyadjustingtheconcentrationoftheAgprecursorusedinthegrowthsolution.ThegrowthmechanismoftheAgNPsontheSiNWswasfoundtobeself-assembly.Preliminarydatasuggestthat
温馨提示
- 1. 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
- 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
- 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
- 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
- 5. 人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
- 6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
- 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
最新文档
- 辽宁省盘锦市辽宁西安中学高二物理上学期期末试卷含解析
- 劳动合同书(样本)
- 河南省商丘市国山希望中学高二物理下学期期末试卷含解析
- 辽宁省大连市开发区第十高级中学高二物理期末试卷含解析
- 山东省青岛市经济技术开发区第五中学2022年高二物理测试题含解析
- 湖南省衡阳市 衡山县第四中学2022年高二物理知识点试题含解析
- 湖南省郴州市南乡中学2022-2023学年高二物理月考试题含解析
- 广东省河源市庆龄中学高二物理模拟试卷含解析
- 2024内部股权转让协议参考范文
- 期末测试题(试题)-20232-2024学年三年级下册数学人教版
- 2015-2021年大学英语四级(CET4)123套卷真题
- 手工锡纸幼儿园教案
- N5N4N3日语听力分阶突破知到章节答案智慧树2023年吉林财经大学
- 《中外城市建设史》考试复习题库汇总(附答案)
- 冲压工(四级)理论考试复习题库(200多题)
- 2022-2023学年山东省济南市历城区青岛版四年级下册期末考试科学试卷(原卷版)
- 北京市中小学教师信息技术应用能力提升工程培训
- pa800plus生物制药分析系统试剂盒说明和应用报告
- 青浦区2017学年第二学期八年级数学期末试卷含参考答案
- 公司工程数量管理办法
- 2023小鹏P72023款P7汽车上市整合营销方案
评论
0/150
提交评论