设计了简单的化学反应路线,在表面活性剂PEG400存在下通过简单的前驱体热分解反应合成了ZnO/CdS复合纳米粒子,其直径在4～10nm之间.前驱体则通过室温固相反应获得.用X射线衍射仪(XRD)和透射电子显微镜(TEM))对产物的结构和形貌进行了表征.同时,对产物的光致发光性能(PL)作了测试.结果表明:ZnO/CdS复合纳米粒子在380 nm处有一个较弱的归因于近带隙发射的发光峰,550 nm处较强的发射峰来自于由氧空位形成的深浅表面态所捕获的电子-空穴对的复合.另外,对它们的形成机理进行了简单的探讨.
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