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|Title:||Dissociative adsorption of 3-chloropropyne on Si(111)-(7 × 7): Binding and structure|
|Authors:||Zhang, Y. |
|Source:||Zhang, Y., Chen, Z., Man, Y., Guo, P. (2013-02-12). Dissociative adsorption of 3-chloropropyne on Si(111)-(7 × 7): Binding and structure. Langmuir 29 (6) : 1868-1874. ScholarBank@NUS Repository. https://doi.org/10.1021/la304018a|
|Abstract:||To achieve silicon functionalization for the development of hybrid devices, multifunctional molecules may be employed to attach to the silicon surfaces. It is important to get a fundamental understanding about the molecule/silicon interface chemistry and the binding configuration. The surface chemistry of 3-chloropropyne (HCî - 1/4C - CH2Cl) on the Si(111)-(7 × 7) surface, as a model system for understanding the interaction of the multifunctional molecules with a silicon surface, was studied by X-ray photoelectron spectroscopy (XPS), high-resolution electron energy loss spectroscopy (HREELS), and density functional theory (DFT). The 3-chloropropyne adsorbs molecularly on the silicon surface at 110 K. A chemical reaction clearly occurs such that 3-choloropropyne bonds onto the Si(111)-(7 × 7) surface at room temperature by forming C - Si linkage through the cleavage of C - Cl bond, and preserving the ethyne Cî - 1/4C triple bond. This functionalized silicon surface may act as an intermediate for the growth of multiple organic layers by further attaching other functional molecules. © 2013 American Chemical Society.|
|Appears in Collections:||Staff Publications|
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