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Reitböck C, Głowacki E, Stifter D. Sum-Frequency Generation Vibrational Spectroscopy Investigations of Phosphonic Acids on Anodic Aluminum Oxide Films. Appl Spectrosc. 2018;72(5):725-730doi: 10.1177/0003702818756899.
Reitböck, C., Głowacki, E., & Stifter, D. (2018). Sum-Frequency Generation Vibrational Spectroscopy Investigations of Phosphonic Acids on Anodic Aluminum Oxide Films. Applied spectroscopy, 72(5), 725-730. https://doi.org/10.1177/0003702818756899
Reitböck, Cornelia, et al. "Sum-Frequency Generation Vibrational Spectroscopy Investigations of Phosphonic Acids on Anodic Aluminum Oxide Films." Applied spectroscopy vol. 72,5 (2018): 725-730. doi: https://doi.org/10.1177/0003702818756899
Reitböck C, Głowacki E, Stifter D. Sum-Frequency Generation Vibrational Spectroscopy Investigations of Phosphonic Acids on Anodic Aluminum Oxide Films. Appl Spectrosc. 2018 May;72(5):725-730. doi: 10.1177/0003702818756899. Epub 2018 Feb 13. PMID: 29436845.
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Appl Spectrosc. 2018 May;72(5):725-730. doi: 10.1177/0003702818756899. Epub 2018 Feb 13.

Sum-Frequency Generation Vibrational Spectroscopy Investigations of Phosphonic Acids on Anodic Aluminum Oxide Films.

Applied spectroscopy

Cornelia Reitböck, Eric Głowacki, David Stifter

Affiliations

  1. 1 Center for Surface- and Nanoanalytics, Johannes Kepler University Linz, Linz, Austria.
  2. 2 101031 Laboratory of Organic Electronics, ITN, Campus Norrköping, Linköping University, Norrköping, Sweden.

PMID: 29436845 DOI: 10.1177/0003702818756899

Abstract

Self-assembled monolayers of alkyl phosphonic acids on anodic aluminum oxide (AlOx) surfaces are important as dielectric layers in thin film electronic devices. Assessing the properties and quality of these monolayers on amorphous AlOx is limited to a few surface-sensitive methods. In this work, we study using nonlinear optical measurements the molecular ordering in n-alkyl phosphonic acids with various alkyl chain lengths (6 to 18 carbons) deposited on AlOx and show the influence of temperature on stability and conformational order. The results demonstrate that the octadecylphosphonic acid has fewest defects in the chain orientation. A detailed comparison of the longest and the shortest alkyl chain revealed different behavior in conformational ordering upon annealing.

Keywords: Nonlinear optics; phosphonic acid; sum-frequency generation; thin film electronics

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