Fabrication of Amorphous Silicon-Carbon Hybrid Films using Single Source Precursors
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Authors
Organisational units
External Organisational units
- Zentrum f Elektronenmikroskopie Graz
- Institute of Nanostructured Materials and Photonics, Joanneum Research
- Technische Universität Graz
Abstract
The aim of this study was the preparation of different amorphous silicon–carbon hybrid thin-layer materials according to the liquid phase deposition (LPD) process using single-source precursors. In our study, 2-methyl-2-silyltrisilane (methylisotetrasilane; 2), 1,1,1-trimethyl-2,2-disilyltrisilane (trimethylsilylisotetrasilane; 3), 2-phenyl-2-silyltrisilane (phenylisotetrasilane; 4), and 1,1,2,2,4,4,5,5-octamethyl-3,3,6,6-tetrasilylcyclohexasilane (cyclohexasilane; 5) were utilized as precursor materials and compared with the parent compound 2,2-disilyltrisilane (neopentasilane; 1). Compounds 2–5 were successfully oligomerized at λ = 365 nm with catalytic amounts of the neopentasilane oligomer (NPO). These oligomeric mixtures (NPO and 6–9) were used for the preparation of thin-layer materials. Optimum solution and spin coating conditions were investigated, and amorphous silicon–carbon films were obtained. All thin-layer materials were characterized via UV/vis spectroscopy, light microscopy, spectroscopic ellipsometry, XPS, SEM, and SEM/EDX. Our results show that the carbon content and especially the bandgap can be easily tuned using these single-source precursors via LPD.
Details
Translated title of the contribution | HErstellung amorpher Silicium-Kohlenstoff-Hybridschichten mit Precursoren aus einer Quelle |
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Original language | English |
Pages (from-to) | 15490-15501 |
Number of pages | 12 |
Journal | Inorganic chemistry |
Volume | 62.2023 |
Issue number | 38 |
DOIs | |
Publication status | Published - 12 Sept 2023 |