Interaction of HCN (DCN) with Si(111)-7X7 studied with HREELS, UPS, and XPS

Y. Bu; L. Ma; Ming-Chang Lin

doi:10.1021/j100147a037

Interaction of HCN (DCN) with Si(111)-7X7 studied with HREELS, UPS, and XPS

Y. Bu, L. Ma, Ming-Chang Lin^*

^*Corresponding author for this work

Department of Applied Chemistry

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

The interaction of HCN (DCN) with Si(111)-7X7 was studied with high-resolution electron energy loss spectroscopy (HREELS), ultraviolet photoelectron spectroscopy (UPS), and X-ray photoelectron spectroscopy (XPS). HCN (DCN) formed dimers and/or polymers on the surface at 100 K with higher dosages (D > 4 langmuirs). Above 200 K, CN radicals in an end-on adsorption geometry were identified as the major species which survived up to 600 K on the surface. This observation was different from that with HCN (DCN) on Si(100)-2X1, where the relative concentration of the HCNH species was higher. The observed difference in the behavior of HCN (DCN) on Si(111)-7X7 and Si(100)-2X1 could be ascribed to the different topologies of the two surfaces.

Original language	English
Pages (from-to)	11797-11801
Number of pages	5
Journal	Journal of physical chemistry
Volume	97
Issue number	45
DOIs	https://doi.org/10.1021/j100147a037
State	Published - 1993

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title = "Interaction of HCN (DCN) with Si(111)-7X7 studied with HREELS, UPS, and XPS",

abstract = "The interaction of HCN (DCN) with Si(111)-7X7 was studied with high-resolution electron energy loss spectroscopy (HREELS), ultraviolet photoelectron spectroscopy (UPS), and X-ray photoelectron spectroscopy (XPS). HCN (DCN) formed dimers and/or polymers on the surface at 100 K with higher dosages (D > 4 langmuirs). Above 200 K, CN radicals in an end-on adsorption geometry were identified as the major species which survived up to 600 K on the surface. This observation was different from that with HCN (DCN) on Si(100)-2X1, where the relative concentration of the HCNH species was higher. The observed difference in the behavior of HCN (DCN) on Si(111)-7X7 and Si(100)-2X1 could be ascribed to the different topologies of the two surfaces.",

author = "Y. Bu and L. Ma and Ming-Chang Lin",

year = "1993",

doi = "10.1021/j100147a037",

language = "English",

volume = "97",

pages = "11797--11801",

journal = "Journal of physical chemistry",

issn = "0022-3654",

publisher = "American Chemical Society",

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TY - JOUR

T1 - Interaction of HCN (DCN) with Si(111)-7X7 studied with HREELS, UPS, and XPS

AU - Bu, Y.

AU - Ma, L.

AU - Lin, Ming-Chang

PY - 1993

Y1 - 1993

N2 - The interaction of HCN (DCN) with Si(111)-7X7 was studied with high-resolution electron energy loss spectroscopy (HREELS), ultraviolet photoelectron spectroscopy (UPS), and X-ray photoelectron spectroscopy (XPS). HCN (DCN) formed dimers and/or polymers on the surface at 100 K with higher dosages (D > 4 langmuirs). Above 200 K, CN radicals in an end-on adsorption geometry were identified as the major species which survived up to 600 K on the surface. This observation was different from that with HCN (DCN) on Si(100)-2X1, where the relative concentration of the HCNH species was higher. The observed difference in the behavior of HCN (DCN) on Si(111)-7X7 and Si(100)-2X1 could be ascribed to the different topologies of the two surfaces.

AB - The interaction of HCN (DCN) with Si(111)-7X7 was studied with high-resolution electron energy loss spectroscopy (HREELS), ultraviolet photoelectron spectroscopy (UPS), and X-ray photoelectron spectroscopy (XPS). HCN (DCN) formed dimers and/or polymers on the surface at 100 K with higher dosages (D > 4 langmuirs). Above 200 K, CN radicals in an end-on adsorption geometry were identified as the major species which survived up to 600 K on the surface. This observation was different from that with HCN (DCN) on Si(100)-2X1, where the relative concentration of the HCNH species was higher. The observed difference in the behavior of HCN (DCN) on Si(111)-7X7 and Si(100)-2X1 could be ascribed to the different topologies of the two surfaces.

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U2 - 10.1021/j100147a037

DO - 10.1021/j100147a037

M3 - Article

AN - SCOPUS:0000514282

SN - 0022-3654

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SP - 11797

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JO - Journal of physical chemistry

JF - Journal of physical chemistry

IS - 45

ER -

Interaction of HCN (DCN) with Si(111)-7X7 studied with HREELS, UPS, and XPS

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