化学溶液沉积法制备ZnO纳米棒阵列及其光学性能  

Preparation of ZnO Nanorod Arrays by Chemical Solution Deposition and Their Optical Properties

作　　者：王海锋[1] 王树林[2] 蹇敦亮[2] 丁浩冉[1] 陈海燕[1] 

机构地区：[1]上海理工大学能源与动力工程学院,上海200093 [2]上海理工大学材料科学与工程学院,上海200093

出　　处：《材料导报》2011年第2期54-56,共3页Materials Reports

基　　金：国家自然科学基金(50575147);上海市教委重点项目(J50503);上海市纳米专项项目(1052nm02900)

摘　　要：采用化学溶液沉积法,在经ZnO纳米粒子膜修饰的FTO导电玻璃基底上制备了ZnO纳米棒阵列,探讨了生长液浓度对ZnO纳米棒阵列形貌和光学性能的影响。利用XRD、FESEM、透射光谱和光致发光谱对样品的结构、形貌和光学性能进行了表征,结果表明,所制备的ZnO纳米棒为六方纤锌矿相,沿c轴择优取向生长;ZnO纳米棒阵列生长较为致密,取向性较一致,在可见光区具有很高的透光率,在378nm有很强的紫外发射峰;随着生长液浓度的降低,ZnO纳米棒阵列的缺陷可望大幅度下降。ZnO nanorod arrays were prepared by chemical solution deposition on pre-modified FTO substrate with ZnO nanoparticles. The effects of concentration of growth solution on the morphology and optical properties of ZnO nanorod arrays were investigated. X-ray diffraction （XRD）~ field emission scanning electron microscopy （FESEM）, transmission spectra and photoluminescence spectrum were used to characterize the crystal structures, mor- phology and optical properties of the ZnO nanorod arrays. XRD pattern indicates that the as-prepared ZnO nanorods are hexagonal wurtzite structures and grow along c-axis. SEM results show that the ZnO nanorod arrays are dense ar- ranged and the orientation shows good consistence. Optical study reveals that the ZnO nanorod arrays exhibit high transmittance in visible domain and have a strong near-band ultraviolet emission at 378nm. It can he expected that the structural defects decrease greatly with the decrease of the growth solution concentration.

关 键 词：ZNO纳米棒阵列 化学溶液沉积 生长液浓度 光致发光 

分 类 号：O614[理学—无机化学]