【作者】 宋玉哲； 陈昊； 刘国汉； 韩根亮； 徐进章； 李工农；

【Author】 SONG Yu-zhe1, CHEN Hao2, LIU Guo-han1, HAN Gen-liang1, XU Jin-zhang2, LI Gong-nong1 (1. Institute of Sensor Technology, 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】 在四甲基氢氧化铵的水溶液中,锌片基底上成功生长了ZnO纳米棒阵列,利用扫描电镜、X射线衍射和荧光仪检测了产品的形貌、结构和光致发光性能。结果发现,通过改变四甲基氢氧化铵的浓度,可以实现对纳米棒阵列取向和直径的控制;产物出现了分别位于380nm的紫外发光峰和525nm的绿色发光峰,并认为O空位Zn填隙缔合缺陷也参与了绿色发光的形成。最后,简单讨论了纳米棒阵列的生长机理。更多还原

【Abstract】 ZnO nanorod arrays were successfully fabricated on zinc foils in the different concentrations of tetramethylammonium hydroxide (TMAH) solutions. The products were characterized with X-ray diffraction, scanning electron microscopy, and spectrometer. It was found, the orientation and diameter of ZnO nanorods can control by changing the concentration of TMAH; The PL spectra show a strong UV emission peak and a broad green emission peak at 380 nm and 525 nm, respectively. There are a few hypotheses to explain the origin of the green emission, we believe that the complex of oxygen vacancy and interstitial zinc (VoZni) may be one of the origins of the green luminescence.更多还原