稀有金属材料与工程
稀有金屬材料與工程
희유금속재료여공정
RARE METAL MATERIALS AND ENGINEERNG
2009年
3期
377-379
,共3页
杨兆柱%薛成山%庄慧照%王公堂%陈金华%李红%秦丽霞%王邹平
楊兆柱%薛成山%莊慧照%王公堂%陳金華%李紅%秦麗霞%王鄒平
양조주%설성산%장혜조%왕공당%진금화%리홍%진려하%왕추평
磁控溅射%氮化镓%纳米线%光致发光
磁控濺射%氮化鎵%納米線%光緻髮光
자공천사%담화가%납미선%광치발광
magnetron sputtering%GaN%nanowires:photoluminescence
氨化硅基钒应变层氧化镓膜制备了大量氮化镓纳米线,X射线衍射、扫描电子显微镜和透射电子显微镜观察发现,纳米线具有十分光滑且干净的表面,其直径为20~60 nm左右,长度达到十几微米.高分辨透射电子显微镜和选区电子衍射分析结果表明,制备的氮化稼纳米线为六方纤锌矿结构.光致发光谱显示制备的氮化稼纳米线有良好的发光特性.另外,简单讨论了氮化稼纳米线的生长机制.
氨化硅基釩應變層氧化鎵膜製備瞭大量氮化鎵納米線,X射線衍射、掃描電子顯微鏡和透射電子顯微鏡觀察髮現,納米線具有十分光滑且榦淨的錶麵,其直徑為20~60 nm左右,長度達到十幾微米.高分辨透射電子顯微鏡和選區電子衍射分析結果錶明,製備的氮化稼納米線為六方纖鋅礦結構.光緻髮光譜顯示製備的氮化稼納米線有良好的髮光特性.另外,簡單討論瞭氮化稼納米線的生長機製.
안화규기범응변층양화가막제비료대량담화가납미선,X사선연사、소묘전자현미경화투사전자현미경관찰발현,납미선구유십분광활차간정적표면,기직경위20~60 nm좌우,장도체도십궤미미.고분변투사전자현미경화선구전자연사분석결과표명,제비적담화가납미선위륙방섬자광결구.광치발광보현시제비적담화가납미선유량호적발광특성.령외,간단토론료담화가납미선적생장궤제.
Large-scale GaN nanowircs were synthesized on Si(111)substrates through ammoniating Ga2O3N films.The as-grown products woe characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM)and transmission electron microscopy (TEM).The results reveal that the grown GaN nanowires have a smooth and clean surface with diameters ranging from 20 nm to 60 nm and lengths ofabout several tens of micrometers.The results of HRTEM and selected-area electron diffraction(SAED)show that the nanowires are pure hexagonal GaN single crystal.The photoluminescence(PL)spectrum indicates that the GaN nanowires have good emission property.The growth mechanism is discussed briefly.