Тип публикации: статья из журнала
Год издания: 2023
Идентификатор DOI: 10.3390/pr11082236
Ключевые слова: MAX phase, thin film, magnetron sputtering, electronic transport, optical spectra
Аннотация: <jats:p>The growth and phase formation features, along with the influence of structure and morphology on the electronic, optical, and transport properties of Cr2GeC and Cr2-xMnxGeC MAX phase thin films synthesized by magnetron sputtering technique, were studied. It was found that the Cr:Ge:C atomic ratios most likely play the main Показать полностьюrole in the formation of a thin film of the MAX phase. A slight excess of carbon and manganese doping significantly improved the phase composition of the films. Cr2GeC films with a thicknesses exceeding 40 nm consisted of crystallites with well-developed facets, exhibiting metallic optical and transport properties. The hopping conduction observed in the Cr2-xMnxGeC film could be attributed to the columnar form of crystallites. Calculations based on a two-band model indicated high carrier concentrations N, P and mobility μ in the best-synthesized Cr2GeC film, suggesting transport properties close to single crystal material. The findings of this study can be utilized to enhance the growth technology of MAX phase thin films.</jats:p>
Журнал: Processes
Выпуск журнала: Т.11, №8
Номера страниц: 2236
ISSN журнала: 22279717