Tuning the Band Bending and Controlling the Surface Reactivity at Polar and Nonpolar Surfaces of ZnO through Phosphonic Acid Binding
| العنوان: | Tuning the Band Bending and Controlling the Surface Reactivity at Polar and Nonpolar Surfaces of ZnO through Phosphonic Acid Binding |
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| المؤلفون: | Alexandra R. McNeill, Martin W. Allen, Roger J. Reeves, Alison J. Downard, Adam R. Hyndman |
| المصدر: | ACS Applied Materials & Interfaces. 8:31392-31402 |
| بيانات النشر: | American Chemical Society (ACS), 2016. |
| سنة النشر: | 2016 |
| مصطلحات موضوعية: | Materials science, Photoemission spectroscopy, 02 engineering and technology, Electron, 021001 nanoscience & nanotechnology, 01 natural sciences, Synchrotron, law.invention, chemistry.chemical_compound, Dipole, Band bending, chemistry, law, 0103 physical sciences, Polar, Physical chemistry, Organic chemistry, General Materials Science, 010306 general physics, 0210 nano-technology, Layer (electronics), Octadecylphosphonic acid |
| الوصف: | ZnO is a prime candidate for future use in transparent electronics; however, development of practical materials requires attention to factors including control of its unusual surface band bending and surface reactivity. In this work, we have modified the O-polar (0001), Zn-polar (0001), and m-plane (1010) surfaces of ZnO with phosphonic acid (PA) derivatives and measured the effect on the surface band bending and surface sensitivity to atmospheric oxygen. Core level and valence band synchrotron X-ray photoemission spectroscopy was used to measure the surface band bending introduced by PA modifiers with substituents of opposite polarity dipole moment: octadecylphosphonic acid (ODPA) and 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctylphosphonic acid (F13OPA). Both PAs act as surface electron donors, increasing the downward band bending and the strength of the two-dimensional surface electron accumulation layer on all of the ZnO surfaces investigated. On the O-polar (0001) and m-plane (1010) surfaces, the O... |
| تدمد: | 1944-8252 1944-8244 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d4a4ac5505c143fddec6259eb292a24 https://doi.org/10.1021/acsami.6b10309 |
| رقم الأكسشن: | edsair.doi.dedup.....4d4a4ac5505c143fddec6259eb292a24 |
| قاعدة البيانات: | OpenAIRE |
Find this issue from the American Chemical Society | تدمد: | 19448252 19448244 |
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