等离子体辅助法合成 .Si~dSiO2纳米梳.pdf

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1、第30卷第10期无机化学学报V0I．30No．102014年1O月C}】[INESEJ0URNAL0FINORGANICCHEMISTRY2447—2452等离子体辅助法合成．Si~dSiO2纳米梳王秋实张伟张丽娜吕航陆晓东吴志颖(渤海大学新能源学院，锦州121013)摘要：晶体的‘Si，N内核和非晶的SiO：外壳组成的纳米梳通过简单的直流电弧方法合成。通过X射线衍射fXRD)、扫描电子显微术(sEM)、透射电子显微术(11EM)、傅里叶红外光谱(FTIR)等对纳米梳进行表征。纳米梳的光致发光谱展现了两个强的发光

2、峰，分别在450和511nITI。一Sj3N~S／O核壳结构纳米梳生长机制为等离子体辅助气一固生长机制。关键词：纳米结构；氮化物；电弧放电：光致发光中图分类号：0613．61文献标识码：A文章编号：1001-4861(2014)10．2447．06DoI：10．11862／CJIC．2014．184Plasma．·AssistedSynthesisof．Sil3N4／SiO2Core．ShellNanocombsWANGQjuShiZHANGWeiZHANGLi—NaL0HangLUXiao．DongWUZhi．

3、Ying(C~llegeofNewEnergy,Bo^University,Jinzk~ou,L／aon／ng121013．China)Abstract：Nanocombscomposedofcrystalline-Si3N4innercoreandamorphousSiO20uters,hellweresvnthe．sizedbyasimpleone。stepmethodofdirectcurrentarcdischargewithouttheadditionofanycatalyst,'sortelmplat

4、es·ThemorphokgyandstructureofthenanocomhswerecharacterizedbyXRD，SEM，EDS．TEMandFTIR．Thephotoluminesceuce(PL)spectrumofthenanocombsshowstw0strongemissionpeaksatabout：450nmand511nm．Thegrew~hmechanismofthe一Si：,NJSiOcore一．shellnanocombscanbec0nsideredasdasma-ass3i

5、stedvapor-．solidmechanism．Keywords：nanostructure；nit,ides；arcdischarges；photoluminescence0Intr0ducti0nsemiconductornanowirecoresaresheathedwithjnsuiatororsemiconductornanotubeshells阁．UntilOne—dimensional(1D)structureswithnan0meternow，agreatmany1Dnanowireswith

6、coaxi&ldiameters．，suchasnanotubesandnanowires，havestructureshavebeenreported．Thus，investigationsbeenthefocusofextensiveresearchdu,etotheirhavebeendevotedtothesynthesisofcoaxialcote

7、potentialapplicationsasinterconnectsorfunctionalshellstructuresofSi／SiO2~l3l，S

8、iC／SiO2Zn／Zn0嘲，GaP／，componentsinnanoscaleelectronic，optoelectrenic。Ga203旧andGaN／Ga2,0systems,，whereoxideshellsandmechanicaldevices【11．Insuchdevicestructures．werefoxedbytheoxidationofcorernat~6als．Amongincreasingthepackingdensityorscaling．downthethesereports，c

9、oatingasilicashellOilmetallic嘲．deviceforefficiencyimprovingisfacilitatedbymagnetic，0rsemiconductingcoreshasbeenm0stadoptingananocablestructureinwllichoftendiscussedowingtoitsoutstandingad