在旋涂法制成的种子层基底上,用水热法生长氧化锌纳米阵列(ZNAs)和掺锡氧化锌纳米阵列(ZNAs∶Sn).为了研究掺锡对氧化锌纳米阵列透光性的影响,用 X 射线衍射(XRD)、扫描电镜(SEM)、透射谱和椭圆偏振仪(SE)对样品进行了表征,并结合等效介质模型(EMA)理论模拟样品光学常数,根据太阳能光谱 AM1．5计算透过光的总功率.XRD 分析表明纳米棒垂直于基底沿(002)晶向生长,SEM 和椭圆偏振仪表明样品表面形貌良好,制得的纳米棒直径约300 nm,长度约1．6μm.透射谱表明 ZNAs 掺锡之后,在300~800nm 波段透过率增大.根据 AM1．5计算获得在样品厚度相同的情况下,掺杂5％的 ZNAs∶Sn透过光总功率是 ZNAs 的1．6倍.
ZnO nanoarrays (ZNAs)and tin-doped ZnO nanorod arrays(ZNAs∶Sn)were synthesized by hydro-thermal method on seeded catalyst layer prepared by spin coating method.The effect of Sn doping in ZnO nano-rod arrays (ZNAs)was investigated by X-ray diffraction,scanning electron microscopy,optical transmittance spectra and ellipsometer,and the Bruggeman effective medium approximation (EMA)theory was employed to model porous columnar structures of ZNAs to acquire the optical constants of our samples.Compared with the pure ZNAs,the ZNAs∶Sn have a higher transmittance at the wavelength range 300-800 nm.Calculating with the global standard spectrum (AM1.5),the 5% doped ZNAs∶Sn has the highest energy of transmission at the wavelength 300-800 nm,which is 1.6 times as the value that the pure ZNAs has.
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