Academic Journal
Kinetics of small molecule adsorption studied using precision ellipsometry
| العنوان: | Kinetics of small molecule adsorption studied using precision ellipsometry |
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| المؤلفون: | Yakovlev, Nikolai L., Quek, Hou Chin, Dąbrowski, Karol M., Birch, William R. |
| المساهمون: | Agency for Science, Technology and Research (A*STAR), Singapore |
| المصدر: | Surface and Interface Analysis ; volume 51, issue 7, page 697-702 ; ISSN 0142-2421 1096-9918 |
| بيانات النشر: | Wiley |
| سنة النشر: | 2019 |
| المجموعة: | Wiley Online Library (Open Access Articles via Crossref) |
| الوصف: | On the basis of a miniature polarisation modulator, a precision ellipsometry system has been made, enabling real‐time measurement of subnanometre thin layers on reflecting substrates. This system monitored the kinetics of adsorption and desorption of propanol, or ethanol, or methanol on oxidised Si substrates. While adsorption of propanol and ethanol increased the thickness, adsorption of methanol showed surprising kinetics: the thickness first increased, then decreased. To explain this, a model of substitutional (or competitive) adsorption has been used, where the target molecule is adsorbed only when it substitutes another one leaving an adsorption site. The model fits the experimental data quantitatively and can predict processes involving several components on solid surfaces. Precision ellipsometry demonstrated its high analytical potential in investigation of surfaces at molecular level. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1002/sia.6637 |
| الاتاحة: | http://dx.doi.org/10.1002/sia.6637 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fsia.6637 https://onlinelibrary.wiley.com/doi/pdf/10.1002/sia.6637 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/sia.6637 |
| Rights: | http://onlinelibrary.wiley.com/termsAndConditions#vor |
| رقم الانضمام: | edsbas.76730084 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1002/sia.6637 |
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