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| Title: | Desorption activation energy of hydrogen from the Si (111)1x1: H surface studied by optical sum frequency generation and second harmonic generation |
| Authors: | Sattar, Md. Abdus
Khuat, Thi Thu Hien
Miyauchi, Yoshihiro
Mizutani, Goro
Rutt, Harvey N. |
| Keywords: | Sum frequency generation (SFG)
Second harmonic generation (SHG)
Si (111)1x1
desorption order
activation energy
hydrogen |
| Issue Date: | 2022-10-09 |
| Publisher: | Elsevier |
| Magazine name: | Surface Science |
| Volume: | 728 |
| Start page: | 122194 |
| DOI: | 10.1016/j.susc.2022.122194 |
| Abstract: | The desorption kinetics of hydrogen from the H-Si (111)1x1 surface prepared by molecular hydrogen exposure has been studied by combining optical sum frequency generation (SFG) for higher coverage and second harmonic generation (SHG) for lower coverage at several sample temperatures from 711 K to 770 K. The hydrogen desorption activation energy was found as Ed = 60.1 ± 8.8 kcal/mol (2.60 ± 0.38 eV) for the second order desorption for the coverage above 0.44 ML. For the first order desorption at the coverage below 0.18 ML the desorption activation energy was found as Ed= 32.6±8.1 kcal/mol (1.41±0.35 eV). |
| Rights: | Copyright (C)2022, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International license (CC BY-NC-ND 4.0). [http://creativecommons.org/licenses/by-nc-nd/4.0/] NOTICE: This is the author's version of a work accepted for publication by Elsevier. Md. Abdus Sattar, Khuat Thi Thu Hien, Yoshihiro Miyauchi, Goro Mizutani and Harvey N. Rutt, Surface Science 728, 2022, 122194, https://doi.org/10.1016/j.susc.2022.122194 |
| URI: | http://hdl.handle.net/10119/19678 |
| Material Type: | author |
| Appears in Collections: | c10-1. 雑誌掲載論文 (Journal Articles)
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| G-MIZUTANI-M-1203.pdf | | 1003Kb | Adobe PDF | View/Open |
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