Adsorption of 3-(triethoxysilyl)propionitrile on a rutile TiO2(110) surface: An X-ray photoelectron spectroscopy study

Shilpi Chaudhary, Ashley R. Head, Niclas Johansson, Olesia Snezhkova, Lei Ye, Lars Montelius, Joachim Schnadt

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

The adsorption of 3-(triethoxysilyl)propionitrile (TESP) on a reduced rutile TiO2(110) surface has been investigated using synchrotron-based X-ray photoelectron spectroscopy in ultrahigh vacuum (UHV). We have studied TESP adsorption on two surface preparation of rutile TiO2 (110) to explore the role of surface defects. In the first preparation, the adsorption of TESP was studied on reduced TiO2 (110) surface at room temperature. In the second experiment TESP was adsorbed on the oxygen-treated TiO2 surface to quench the oxygen vacancies generated by UHVannealing of the TiO2 crystal. The molecular footprints of the TESP molecules confirms the adsorption on both types of TiO2(110) surfaces. In the case of the reduced surface, temperature-dependent XPS measurements show the thermal stability of TESP molecules up to 600 °C. The comparison of the nitrogen and carbon lineshapes for both preparations suggests different adsorption geometries on the reduced and oxygen-dosed surfaces. To the best of our knowledge, the UHV preparations and measurements of TESP adsorption on rutile TiO2 (110) in the present study are reported for the first time.

Original languageEnglish
Title of host publicationDAE Solid State Physics Symposium 2019
EditorsVeerendra K. Sharma, C. L. Prajapat, S. M. Yusuf
PublisherAmerican Institute of Physics (AIP)
ISBN (Electronic)9780735420250
DOIs
Publication statusPublished - 2020
Event64th DAE Solid State Physics Symposium 2019, DAE-SSPS 2019 - Jodhpur, Rajasthan, India
Duration: 2019 Dec 182019 Dec 22

Publication series

NameAIP Conference Proceedings
Volume2265
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference64th DAE Solid State Physics Symposium 2019, DAE-SSPS 2019
Country/TerritoryIndia
CityJodhpur, Rajasthan
Period2019/12/182019/12/22

Subject classification (UKÄ)

  • Condensed Matter Physics
  • Materials Chemistry

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