We report the hydrothermal synthesis of Zn_1-xMn_xO (x = 0.00, 0.02, 0.04, 0.06) nanostructures and their structural, morphological and optical properties. The X-ray diffraction analysis confirmed the wurtzite phase and successful incorporation of Mn in ZnO matrix. Field emission scanning electron microscopy (FE-SEM) images revealed the suppression of growth rate and change in morphology of ZnO from nanoplates to nanorods at higher Mn concentration. Furthermore, a red shift is observed in the Fourier transform infra-red (FTIR) spectra, which is attributed to the variation of bond length and Zn–O–Zn structural perturbation. UV–visible absorption measurements indicated a blue shift in the bandgap from 3.28 eV (pure ZnO) to 3.42 eV (x = 0.06), which is assigned to the Burstein-Moss effect. The photoluminescence spectra exhibited UV excitonic and yellow-green defective emissions. The intensity of broad visible emission peak is decreased which is ascribed to the surface defect quenching due to the presence of Mn as a dopant.

我们报告了水热合成Zn _1-x Mn _xO（x = 0.00、0.02、0.04、0.06）纳米结构及其结构，形态和光学性质。X射线衍射分析证实纤锌矿相和Mn成功地掺入ZnO基体中。场发射扫描电子显微镜（FE-SEM）图像显示出，在较高的Mn浓度下，ZnO从纳米板到纳米棒的生长速率受到抑制，并且ZnO形态发生了变化。此外，在傅立叶变换红外（FTIR）光谱中观察到红移，这归因于键长和Zn–O–Zn结构扰动的变化。紫外可见吸收测量表明，带隙从3.28 eV（纯ZnO）到3.42 eV（x = 0.06）发生了蓝移，这归因于Burstein-Moss效应。光致发光光谱显示出紫外线激子和黄绿色缺陷发射。