Mosińska Lidia, Szczęsny Robert, Trzcinski Marek, Naparty Mieczysław Karol
Institute of Physics, Kazimierz Wielki University, Powstańców Wielkopolskich 2, 85-090 Bydgoszcz, Poland.
Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100 Torun, Poland.
Materials (Basel). 2021 Dec 21;15(1):5. doi: 10.3390/ma15010005.
Diamond is a very interesting material with a wide range of properties, making it highly applicable, for example, in power electronics, chemo- and biosensors, tools' coatings, and heaters. Due to the high demand for this innovative material based on the properties it is already expected to have, it is important to obtain homogeneous diamond layers for specific applications. Doping is often chosen to modify the properties of layers. However, there is an alternative way to achieve this goal and it is shown in this publication. The presented research results reveal that the change in methanol content during the Hot Filament Chemical Vapour Deposition (HF CVD) process is a sufficient factor to tune the properties of deposited layers. This was confirmed by analysing the properties of the obtained layers, which were determined using Raman spectroscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD), and an atomic force microscope (AFM), and the results were correlated with those of X-ray photoelectron spectroscopy (XPS). The results showed that the increasing of the concentration of methanol resulted in a slight decrease in the sp phase content. At the same time, the concentration of the -H, -OH, and =O groups increased with the increasing of the methanol concentration. This affirmed that by changing the content of methanol, it is possible to obtain layers with different properties.
金刚石是一种非常有趣的材料，具有广泛的特性，使其在例如电力电子、化学和生物传感器、工具涂层及加热器等领域具有高度适用性。由于基于其预期具备的特性，对这种创新材料的需求很高，因此获得用于特定应用的均匀金刚石层非常重要。掺杂常常被用于改变层的特性。然而，本文展示了另一种实现此目标的方法。所呈现的研究结果表明，在热丝化学气相沉积（HF CVD）过程中甲醇含量的变化是调整沉积层特性的一个充分因素。通过分析所获得的层的特性证实了这一点，这些特性是使用拉曼光谱、扫描电子显微镜（SEM）、X射线衍射（XRD）和原子力显微镜（AFM）测定的，并且结果与X射线光电子能谱（XPS）的结果相关联。结果表明，甲醇浓度的增加导致sp相含量略有下降。同时，-H、-OH和=O基团的浓度随着甲醇浓度的增加而增加。这证实了通过改变甲醇含量，可以获得具有不同特性的层。
