Park Hyunggil, Kim Younggyu, Ji Iksoo, Choi Hyonkwang, Lee Sang-heon, Kim Jong Su, Kim Jin Soo, Leem Jae-Young
J Nanosci Nanotechnol. 2014 Nov;14(11):8482-8. doi: 10.1166/jnn.2014.9970.
Hydrothermally grown ZnO nanorods were doped with various concentrations of Sn, ranging from 0 to 2.5 at%. Scanning electron microscopy (SEM), X-ray diffractometer (XRD), ultraviolet (UV)-visible spectroscopy, and Photoluminescence (PL) measurements were used to determine the effect of Sn doping on the structural and optical properties. In the SEM images, the nanorods have hexagonal wurtzite structure and the diameter of the nanorods increases with an increase in the Sn content. The optical parameters of the Sn-doped ZnO (SZO) nanorods such as the absorption coefficients, optical bandgaps, Urbach energies, refractive indices, dispersion parameters, dielectric constants, and optical conductivities were determined from the transmittance and reflectance results. In the PL spectra, the intensity of the NBE peak in the UV region decreases and is blue-shifted with an increase in the Sn content, while the DLE peaks of the nanorods in the visible region shift toward the low-energy region with the introduction of Sn.
水热生长的ZnO纳米棒掺杂了浓度范围为0至2.5原子百分比的各种Sn。使用扫描电子显微镜（SEM）、X射线衍射仪（XRD）、紫外（UV）-可见光谱和光致发光（PL）测量来确定Sn掺杂对结构和光学性质的影响。在SEM图像中，纳米棒具有六方纤锌矿结构，并且纳米棒的直径随着Sn含量的增加而增大。从透射率和反射率结果确定了Sn掺杂的ZnO（SZO）纳米棒的光学参数，如吸收系数、光学带隙、乌尔巴赫能量、折射率、色散参数、介电常数和光导率。在PL光谱中，紫外区域的NBE峰强度随着Sn含量的增加而降低并发生蓝移，而随着Sn的引入，纳米棒在可见光区域的DLE峰向低能量区域移动。
