Oxidation of hydrogen-terminated Si surfaces studied by infrared spectroscopy

Niwano, Michio; Kageyama, Jun; Kinashi, Koji; Sawahata, Jun Ichi; Miyamoto, Nobuo

doi:10.1016/0039-6028(94)91281-5

Cited by 42 publications

(28 citation statements)

References 11 publications

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“…These studies suggested that the robustness of the Si NW hydride is a consequence of bending stress, where re-bonding of dangling bonds at the edge of two adjoining facets of a Si NW takes place. 5,22,23 To understand the relation between the strength of the Si-C bond and the oxidation resistance, ToF SIMS fragments of CH 3 -Si NWs and 2D CH 3 -Si(100) surfaces were collected after different exposure periods to oxidizing agents. Table 1 presents selected ToF SIMS spectrum peaks of CH 3 -Si NW before and after 4 days exposure to pure (499.9999% purity) O 2 (20%)-N 2 (80%) environment containing 10-15% RH.…”

Section: Results and Analysismentioning

confidence: 99%

Silicon nanowires terminated with methyl functionalities exhibit stronger Si–C bonds than equivalent 2D surfaces

Bashouti

Paska

Puniredd

et al. 2009

Phys. Chem. Chem. Phys.

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Silicon nanowires (Si NWs) terminated with methyl functionalities exhibit higher oxidation resistance under ambient conditions than equivalent 2D Si(100) and 2D Si(111) surfaces having similar or 10-20% higher initial coverage. The kinetics of methyl adsorption as well as complementary surface analysis by XPS and ToF SIMS attribute this difference to the formation of stronger Si-C bonds on Si NWs, as compared to 2D Si surfaces. This finding offers the possibility of functionalising Si NWs with minimum effect on the conductance of the near-gap channels leading towards more efficient Si NW electronic devices.

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Section: Results and Analysismentioning

confidence: 99%

Silicon nanowires terminated with methyl functionalities exhibit stronger Si–C bonds than equivalent 2D surfaces

Bashouti

Paska

Puniredd

et al. 2009

Phys. Chem. Chem. Phys.

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“…8 Nevertheless, the surface passivated by Si-H is not fully stable and silicon oxide appears within a few hours. 9 The chemical modication of the silicon surface with graed organic molecules could be interesting to improve its stability. 1 Furthermore, the graing of molecules on semiconductor surfaces can be used to achieve a one-step passivation and functionalization of the surface.…”

Section: Introductionmentioning

confidence: 99%

Surface band structure of aryl-diazonium modified p-Si electrodes determined by X-ray photoelectron spectroscopy and electrochemical measurements

2013

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The influence of grafted organic layers, obtained by aryldiazonium cations reduction, on the surface properties of p-type silicon was investigated. These layers were characterized by X-ray photoelectron spectroscopy (XPS), infrared spectroscopy and electrochemical methods. The results indicate a passivation of the silicon surface, a decrease of the oxidation of silicon. The results from electrochemical and XPS measurements can be used together to quantify the shift of the surface energy bands of the semiconductor caused by the presence of these layers at the surface. These measurements are important to understand the interfacial properties of the semiconductor and this grafting method can thus be used to adjust the surface energy levels positions toward those of different chemical reactions.

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“…The appearance of the terminal oxide group (-O) suggests the formation of the SiO 2 from the full oxidation of the Si. 19 The exact ratio of SiO x and SiO 2 is not clear yet due to the unknown number x of SiO x .…”

mentioning

confidence: 99%

Amorphous Si/SiOx/SiO2 nanocomposites via facile scalable synthesis as anode materials for Li-ion batteries with long cycling life

Dai

Gordin

et al. 2012

RSC Adv.

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Oxidation of hydrogen-terminated Si surfaces studied by infrared spectroscopy

Cited by 42 publications

References 11 publications

Silicon nanowires terminated with methyl functionalities exhibit stronger Si–C bonds than equivalent 2D surfaces

Silicon nanowires terminated with methyl functionalities exhibit stronger Si–C bonds than equivalent 2D surfaces

Surface band structure of aryl-diazonium modified p-Si electrodes determined by X-ray photoelectron spectroscopy and electrochemical measurements

Amorphous Si/SiOx/SiO2 nanocomposites via facile scalable synthesis as anode materials for Li-ion batteries with long cycling life

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