氧化锌纳米棒阵列的生长.docx

Forpersonaluseonlyinstudyandresearch;mercialuseForpersonaluseonlyinstudyandresearch;mercialuse袈AlignedZnONanorodArraysGrownDirectlyonZincFoilsandZincSpheresbyaLow-TemperatureOxidizationMethod蚄用低温氧化方法直接在锌箔和锌颗粒培养排列有序的氧化锌纳米棒阵列羀ABSTRACTVerticallyaligned,denseZnOnanorodarraysweregrowndirectlyonzincfoilsbyacatalyst-free,螁low-temperature(450_500°C),uniqueandsophisticatedurchin-,低温(450~500°C)氧化法在锌箔上生长。在氧化锌纳米棒生长在它表面上后,锌箔仍然具有导电性。合成能够成功在很大程度上依赖于对引导氧气控制程度。蒅通过将锌箔更换成锌微球,独特和复杂的海胆样氧化锌纳米棒组件很容易获得。袄螁Zincoxide(ZnO)isrecognizedasone袀ofthemostimportantphotonicmaterials芄forapplicationsintheblue_ultravioletregionowingtoitsdirect羄widebandgap()andlargeexcitation膂bindingenergy(60meVatroom莈temperature).Stimulatedbytherecent芇discoveryofbeltlikemorphologyandthe肄realizationofroom-temperatureUVlasing荿fromZnOnanowires,ZnOnanostructures肀intheformofnanorods,nanowires,,薈substantialefforthasbeendevoted螅tothefabricationofverticallyalignedZnO芃nanowirearraysbecausethesearraysdemonstrated膁superioropticalandfieldemission芀propertiesthatmakethempromising袈candidatesforapplicationsinUVlasers,芃light-emittingdiodes(LED),solarcells,,-knownvapor_liquid_solid莀(VLS)growthmechanism,10inwhichgold莆nanoparticleswereusedasthecatalystto蒃directthenanowiregrowth,a-planesapphire肀whichhasperfect袇latticematchup膄withZnOcplanewas薃usedasthegrowth蒀substrates,andthe蕿growthwasconducted膇atrelatively蚃hightemperaturesof袁由于其直宽禁带和大的激励结合能,氧化锌是公认的应用于蓝紫外地区最重要的光子材料之一,由于带状形态发现的促进和室温紫外激光发射的实现,氧化锌纳米线,以纳米棒,纳米线,和纳米带形式存在的纳米氧化锌吸引了研究机构大量的注意力。尤其是,大量努力已投入垂直有序排列的氧化锌纳米线阵列的制备中,因为这些阵列显示优越的光学和场发射性能,使他们有望应用于紫外激光器,发光二极