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Physicochemical conditions for ZnO films deposited by microwave chemical bath deposition

机译：微波化学浴沉积ZnO薄膜的理化条件

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Physicochemical analysis was carried out to obtain the species distribution diagrams (SDDs) for the deposition of ZnO films as a function of OH ~(?) ion concentration ([OH ~(?) ]) in the reaction solution. The study of SDDs predicts nucleation and ZnO film growth by means of the dominant species at a given pH value. To confirm this, a series of experiments were made varying the [OH ~(?) ] in the reaction solution and keeping the others parameters constant. Structured zinc oxide (ZnO) films were obtained on glass substrates by microwave chemical bath deposition (MWCBD). Structural, optical and morphological ZnO film properties were investigated as a function of [OH ~(?) ]. X-Ray diffraction technique (XRD) measurements show multiple diffraction peaks, indicating the polycrystalline nature of ZnO films. Scanning Electron Microscopy (SEM) images of ZnO structures showed morphological changes with the variation of [OH ~(?) ]. The stoichiometry of the structures changed as the [OH ~(?) ] was varied in solution. From Raman spectra, it was observed that the [OH ~(?) ] of the reaction mixture strongly affects the crystal quality of ZnO structures. A reaction pathway for the synthesis of ZnO structures based on our results is proposed. Experimental results are consistent with the physical–chemical analysis.
机译：进行了理化分析，以得到作为反应溶液中OH〜（？）离子浓度（[OH〜（？）]）的ZnO膜沉积的物质分布图（SDD）。对SDD的研究通过在给定pH值下的优势种来预测成核和ZnO膜的生长。为了证实这一点，进行了一系列实验以改变反应溶液中的[OH〜（α）]，并使其他参数保持恒定。通过微波化学浴沉积（MWCBD）在玻璃基板上获得结构化的氧化锌（ZnO）膜。研究了ZnO薄膜的结构，光学和形貌特性与[OH〜（？）]的关系。 X射线衍射技术（XRD）测量显示出多个衍射峰，表明ZnO膜具有多晶性质。 ZnO结构的扫描电子显微镜（SEM）图像显示出[OH〜（？）]随形态的变化。随着溶液中[OH〜（α）]的变化，结构的化学计量变化。从拉曼光谱观察到，反应混合物的[OH〜（α）]强烈影响ZnO结构的晶体质量。根据我们的研究结果，提出了一种合成ZnO结构的反应途径。实验结果与理化分析结果一致。

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