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首页> 外文期刊>Physica, B. Condensed Matter >Determination of physical properties of graphene doped ZnO (ZnO:Gr) nanocomposite thin films deposited by a thermionic vacuum arc technique
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Determination of physical properties of graphene doped ZnO (ZnO:Gr) nanocomposite thin films deposited by a thermionic vacuum arc technique

机译：高温真空弧技术沉积石墨烯掺杂ZnO（ZnO：GR）纳米复合薄膜的物理性质的测定

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This study is focused on the growth of graphene doped ZnO (ZnO:Gr) nanocomposite thin films by a thermionic vacuum arc (TVA) technique. ZnO:Gr nanocomposite thin films were deposited onto glass and silicon (Si) substrates. The influence of the dopant effect on structural, optical, morphological properties of the ZnO:Gr nanocomposite thin films were investigated by using various analysis techniques such as interferometer, UV-Visible spectrophotometer, X-ray diffraction (XRD), Raman spectrometer, Fourier Transform Infrared spectroscopy (FTIR), Photoluminescence (PL) spectroscopy, Field Emission Scanning Electron Microscopy (FESEM), and Atomic Force Microscopy (AFM). Thickness values of the ZnO:Gr nanocomposite thin films for the deposited layers onto glass and Si substrates were measured as to be 50 nm and 20 nm, respectively. In XRD patterns, the reflections of the ZnO and carbon nanostructures were observed. Using UV-Vis spectrophotometer and optical interferometer, the refractive index, reflectance, transmittance, absorbance and optical band gap graphs of the ZnO:Gr nanocomposite thin films were determined. Optical band gap of the ZnO:Gr nanocomposite thin film that deposited on glass substrate was determined as to be 3.15 eV via optical method and the result is in good harmony with PL measurement. PL spectrum showed an ultraviolet (UV) emission peak at 397 nm (3.12 eV). From the Raman analysis of the ZnO:Gr nanocomposite thin films, ZnO, D and 2D peaks of the graphene were observed. FTIR spectroscopy was used to analyze the chemical composition of the samples. According to AFM and FESEM analysis, ZnO:Gr nanocomposite thin films are smooth, flat, granular, uniform and dense form. Due to the larger crystallite sizes ZnO:Gr nanocomposite thin film onto Si substrate has lower resistivity according to the ZnO:Gr nanocomposite thin film deposited onto glass substrate. As a result, ZnO:Gr nanocomposite thin films are promising material for potential applications as to be
机译：通过热离子真空电弧（TVA）技术的纳米复合材料薄膜：本研究的重点是石墨烯的生长掺杂的ZnO（GR ZnO）等。的ZnO：GR纳米复合薄膜沉积在玻璃和硅（Si）衬底。的在ZnO的结构，光学，形态学特性掺杂效应的影响：GR纳米复合薄膜，通过使用各种分析技术，例如干涉仪，紫外可见分光光度计，X射线衍射（XRD），拉曼光谱仪研究，傅立叶变换红外光谱（FTIR），光致发光光谱（PL），场发射扫描电子显微镜（FESEM）和原子力显微镜（AFM）。测量了所沉积的层到玻璃和Si衬底的Gr纳米复合薄膜作为为50nm和20nm时，分别为：在ZnO的厚度值。在X射线衍射图案中，观察到了ZnO的反射和碳纳米结构。使用紫外可见分光光度计和光干涉仪，折射率，反射率，透射率，吸收率和在ZnO的光学带隙的曲线图：GR纳米复合薄膜进行了测定。在ZnO的光学带隙：GR纳米复合薄膜沉积在玻璃基板上被确定为是经由光学方法3.15电子伏特，其结果是与PL测定良好和谐。 PL光谱在397纳米（3.12电子伏特）显示出紫外线（UV）发射峰。从ZnO的拉曼分析：GR纳米复合薄膜，氧化锌，观察到石墨烯的d和2D峰。 FTIR光谱来分析样品的化学组成。根据AFM和FESEM分析，氧化锌：GR纳米复合薄膜是平滑的，平坦的，粒状的，均匀且致密的形式。由于较大的微晶尺寸的ZnO：GR纳米复合薄膜在Si衬底根据ZnO具有较低的电阻率：沉积到玻璃基材的Gr纳米复合薄膜。其结果是，氧化锌：GR纳米复合薄膜被用于潜在应用为是有希望的材料

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