基于掺Li^+同质种子膜诱导生长的ZnO纳米棒阵列的光学性质  

Optical properties of ZnO nanorod array grown on Li^+-doped ZnO nanoparticles as seeds

作　　者：马男[1] 袁志好[1] 段月琴[1] 王达健[1] 

机构地区：[1]天津理工大学材料科学与工程学院,天津300384

出　　处：《天津理工大学学报》2009年第3期36-39,共4页Journal of Tianjin University of Technology

基　　金：国家自然科学基金(20671070);教育部科学技术研究重点项目(207008);天津理工大学纳米材料与纳米技术研究中心资助

摘　　要：采用溶胶涂膜法在衬底上形成一层Li+掺杂的ZnO纳米颗粒膜,并以此纳米颗粒为种子在液相中诱导生长ZnO纳米棒.通过XRD、SEM、光吸收和PL谱等手段研究和分析了在Li+掺杂种子膜的条件下ZnO纳米棒的生长行为及光学性质,结果表明:在ZnO种子膜中掺杂适当量的Li+,可以改善所生长的ZnO纳米棒的结晶质量和取向性,并显著增强其紫外发光性能.Li ^＋-doped ZnO nanoparticle films were prepared by sol-gel method, and the corresponding ZnO nanorod array was grown on the film from a solution containing Zn^2 ＋. The resultant nanorod array was characterized by XRD and FE-SEM, and its optical properties were measured by UV-vis and PL. Results show that application of the Li^ ＋ -doped ZnO nanopartieles as seeds can improve the crystallization and c-axis orientation of the ZnO nanorods, and enhance its luminescent intensity in ultraviolet region.

关 键 词：光学性质 Li+掺杂 种子膜 ZNO纳米棒 

分 类 号：TU352.110.4[建筑科学—结构工程]