ZnO具有负的电子亲和势、丰富的结构和形貌可设计性以及良好的机械和化学稳定性等优点,是一种最有前途的阴极电子发射材料.结合作者实验室的工作,综述了近年来迅速发展的ZnO低维结构的场发射特性以及制备方法、形貌结构、排列及密度、表面吸附、掺杂和热处理等因素对其场发射性能的影响,介绍了四针状氧化锌晶须(T-ZnOw)作为场发射阴极材料的优势.
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