【作者】 刘斌； 宋玉哲； 陈昊； 韩根亮； 徐进章； 刘国汉； 李工农；

【Author】 LIU Bin1, SONG Yu-zhe1, CHEN Hao2, HAN Gen-liang1, XU Jin-zhang2, LIU Guo-han1, LI Gong-nong1 (1. Institute of Sensor Technology of Gansu Academy of Sciences, Lanzhou 730000, China; 2. The School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China)

【机构】 甘肃省科学院传感技术研究所； 兰州大学核科学与技术学院；

【摘要】 以二水合醋酸锌(ZnAc2·2H2O)和氢氧化钠(NaOH)为原料,采用水热法在160℃条件下,制备了纳米花状氧化锌。用X射线衍射(XRD),扫描电子显微镜(SEM),荧光仪(PL)对产物的物相,微观形貌和发光特性进行表征。结果表明,产物是纤锌矿结构ZnO,呈花状,分散性好,颗粒由直径约100nm、长约500nm的纳米棒组成,光致发光光谱显示纳米花在522nm显示出绿色发光峰,分析认为O空位Zn填隙缔合缺陷(VoZni)至价带的跃迁可能是引起绿光发射的原因之一。更多还原

【Abstract】 Flower-like ZnO nanoparticles were prepared by hydrothermal method at 160℃ using ZnAc2·2 H2O and NaOH as raw materials. The products were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and photoluminescence spectrophotometer (PL). The results showed that the products possess the hexagonal wurtzite structure and were composed of nanorods with an even diameter of 100 nm and length of 500 nm. The products exhibits a strong green luminescence band around 525 nm, the complex of oxygen vacancy and interstitial zinc (VoZni) was regarded as one of the origins of the green luminescence.更多还原