UCL logo

UCL Discovery

UCL home » Library Services » Electronic resources » UCL Discovery

Manipulating the orientation of an organic adsorbate on silicon: a NEXAFS study of acetophenone on Si(0 0 1)

O'Donnell, KM; Warschkow, O; Suleman, A; Fahy, A; Thomsen, L; Schofield, SR; (2015) Manipulating the orientation of an organic adsorbate on silicon: a NEXAFS study of acetophenone on Si(0 0 1). Journal of Physics: Condensed Matter , 27 (5) , Article 054002. 10.1088/0953-8984/27/5/054002. Green open access

[img]
Preview
Text
Schofield_manuscript-refrev-kod-no-hl.pdf - ["content_typename_Accepted version" not defined]

Download (14MB) | Preview

Abstract

We investigate the chemical and structural configuration of acetophenone on Si(0 0 1) using synchrotron radiation core-level spectroscopy techniques and density functional theory calculations. Samples were prepared by vapour phase dosing of clean Si(0 0 1) surfaces with acetophenone in ultrahigh vacuum. Near edge x-ray absorption fine structure spectroscopy and photoelectron spectroscopy measurements were made at room temperature as a function of coverage density and post-deposition anneal temperature. We show that the dominant room temperature adsorption structure lies flat on the substrate, while moderate thermal annealing induces the breaking of Si-C bonds between the phenyl ring and the surface resulting in the reorientation of the adsorbate into an upright configuration.

Type: Article
Title: Manipulating the orientation of an organic adsorbate on silicon: a NEXAFS study of acetophenone on Si(0 0 1)
Open access status: An open access version is available from UCL Discovery
DOI: 10.1088/0953-8984/27/5/054002
Publisher version: http://dx.doi.org/10.1088/0953-8984/27/5/054002
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
URI: http://discovery.ucl.ac.uk/id/eprint/10045647
Downloads since deposit
47Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item