Silver Deposition onto Modified Silicon Substrates

Autor: Chaoying Ni, Sana Rani, Yichen Duan, Yuying Zhang, John T. Newberg, Andrew V. Teplyakov
Rok vydání: 2017
Předmět:
Zdroj: The Journal of Physical Chemistry C. 121:7240-7247
ISSN: 1932-7455
1932-7447
Popis: Trimethylphosphine(hexafluoroacetylacetonato)silver(I) was used as a precursor to deposit silver onto silicon surfaces. The deposition was performed on silicon-based substrates including silica, H-terminated Si(100), and OH-terminated (oxidized) Si(100). The deposition processes at room temperature and elevated temperature (350 °C) were compared. The successful deposition resulted in nanostructures or nanostructured films as confirmed by atomic force microscopy (AFM) and scanning electron microscopy (SEM) with metallic silver being the majority deposited species as confirmed by X-ray photoelectron spectroscopy (XPS). The reactivity of the precursor depends drastically not only on the temperature of the process but also on the type of substrate. Density functional theory (DFT) was used to explain these differences and to propose the mechanisms for the initial deposition steps.
Databáze: OpenAIRE