不同Ag光照时间对ZnO纳米花荧光增强的影响  

Effects of Different Ag Illumination Time on the Fluorescence Enhancement of ZnO Nanoflowers

作　　者：杨金梅[1] 张海明[1] 王旭[1] 缪玲玲[1] 杨岩[1] 

机构地区：[1]天津工业大学理学院,天津300387

出　　处：《人工晶体学报》2013年第8期1557-1560,1567,共5页Journal of Synthetic Crystals

摘　　要：采用水浴结合光照法,在Si(100)衬底上制备了Ag/ZnO纳米花结构,研究了不同Ag光照时间对ZnO发光性质的影响。通过X射线衍射(XRD)、扫描电子显微镜(SEM)和光致发光谱(PL)对Ag/ZnO纳米花的结构、形貌和光学性能进行了研究。研究表明,由水浴法制得的ZnO纳米花结构长度约1.0μm,直径为200 nm左右;不同光照时间的Ag掺杂后Ag/ZnO纳米花的衍射峰强度都增强,当光照时间为5 min时,出现了Ag3O4的衍射峰。当光照时间为5 min时,Ag/ZnO纳米花结构具有最强的可见发射强度。Ag/ZnO nanoflower structures were synthesized on Si substrates by water hath combined with illumination method. The effects of different Ag illumination time on the fluorescence enhancement of ZnO nanoflowers were studied. The structure, morphology and optical properties of Ag/ZnO were characterized by X-ray diffraction（XRD）, scanning electron microscopy（SEM） and photoluminescence（PL） spectroscopy. The results indicated that ZnO nanoflowers were about 1 μm in length and around 200 nm in diameter. The intensities of diffraction peaks of Ag/ZnO were enhanced. The diffraction peaks of Ag3 04 were appeared when the illumination time of Ag was 5 min. The Ag/ZnO nanoflowers structure has the strongest visible light luminous intensity when the doping illumination time of Ag was 5 min compared with undoped ZnO.

关 键 词：ZNO 光照 水浴法 光致发光 

分 类 号：O482.31[理学—固体物理]