采用水热法首先合成了Al掺杂ZnO(AZO)纳米棒,在此基础上通过550℃的氨气氛中退火制备了Al,N共掺杂ZnO(ANZ())纳米棒.运用X射线衍射(XRD),场发射扫描电镜(FESEM),透射电子显微镜(TEM),X射线能谱(EDS)和光致发光(PL)对样品进行了表征与分析.结果表明,制备的AZO和ANZ()纳米棒均为六角纤锌矿结构,掺A1可使ZnO纳米棒的直径变细;该制备技术使Al,N两种元素有效地掺入ZnO纳米棒,而且N元素的掺入量随A1掺杂浓度的增加而提高.室温光致发光(PL)测试结果表明,制得的AZO和ANZO纳米棒在390nm处都有一个强的紫外发光峰,而在468nm处都存在一个很弱的蓝色发光峰.与AZO纳米棒的PL光谱比较,ANZ()纳米棒在555nm处的绿色发光峰几乎消失.这些结果说明Al掺杂和Al,N共掺杂ZnO纳米棒对于开发-维纳米光电子器件具有潜在的应用价值.
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