Study of the helium cross-section of unsymmetric disulfide self-assembled monolayers on Au(111)
Yazarlar (4)
Doç. Dr. Erol ALBAYRAK
Kırşehir Ahi Evran Üniversitesi, Türkiye
Kahramanmaras Sütçü Imam Üniversitesi, Türkiye
Università Degli Studi Di Genova, İtalya
Middle East Technical University (Metu), Türkiye
| Makale Türü | Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | Applied Surface Science (Q1) | ||
| Dergi ISSN | 0169-4332 Wos Dergi Scopus Dergi | ||
| Dergi Tarandığı Indeksler | SCI-Expanded | ||
| Makale Dili | İngilizce | Basım Tarihi | 12-2016 |
| Cilt / Sayı / Sayfa | 390 / 1 / 283–288 | DOI | 10.1016/j.apsusc.2016.08.062 |
| Makale Linki | https://doi.org/10.1016/j.apsusc.2016.08.062 | ||
| Özet |
| We have investigated the formation of self-assembled monolayers (SAMs) of 11-hydroxyundecyl decyl disulfide (CH3-(CH2)(9)-S-S-(CH2)(11)-OH, HDD) and 11-hydroxyundecyl octadecyl disulfide (CH3-(CH2)(17)-S-S-(CH2)(11) -OH, HOD) produced by supersonic molecular beam deposition (SMBD). The study has been carried out by means of helium diffraction at very low film coverage. In this regime helium single molecule cross sections have been estimated in a temperature range between 100K and 450K. The results show a different behavior above 300K that has been interpreted as the starting of mobility with the formation of two thiolate moieties either linked by a gold adatom or distant enough to prevent cross section overlapping. Finally, helium diffraction patterns measured at 80 K for the SAMs grown at 200 K are discussed and the results support the proposed hypothesis of molecular dissociation based on the cross section data. (C) 2016 Elsevier B.V. All rights reserved. |
| Anahtar Kelimeler |
| Self-assembled monolayers | Unsymmetric disulfides | The scattering cross sections | Supersonic molecular beam deposition | 11-Hydroxyundecyl decyl disulfide | 11-Hydroxyundecyl octadecyl disulfide |
Science Direct
Study of the helium cross-section of unsymmetric disulfide self-assembled monolayers on Au(111)
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| Atıf Sayıları | |
| WoS | 4 |
| SCOPUS | 4 |
| Google Scholar | 5 |