3 years ago

Influence of Fluorene and Spirobifluorene Regioisomerism on the Structure, Organization, and Permeation Properties of Monolayers

Influence of Fluorene and Spirobifluorene Regioisomerism on the Structure, Organization, and Permeation Properties of Monolayers
Yann R. Leroux, Philippe Hapiot, Jean-François Bergamini, Sébastien Thiery, Joanna Jalkh, Cyril Poriel
9,9′-Spirobifluorene (SBF) and fluorene derivatives are extensively used as active layer in many organic electronic devices nowadays; thus, careful examination of their structure and organization in thin films and monolayers is of primary importance. In the present work, immobilization of SBF and fluorene isomers was performed via Click Chemistry coupling reaction onto well-ordered ethynylbenzene monolayers on carbon substrates. Characterization of the as-prepared monolayers was performed by classical electrochemical techniques (CV), scanning electrochemical microscopy, and atomic force microscopy, highlighting the effect of SBF and fluorene onto the structure and organization of the obtained monolayers. The significant impact of their positional isomerism on the monolayers structuration was clearly evidenced. Indeed, 2-substituted SBF and fluorene monolayers appear to be more compact and ordered than their 4-substituted analogues and are orientated parallel to the surface. These findings should have an important impact on the construction and performances of SBF and fluorene based organic electronic devices.

Publisher URL: http://dx.doi.org/10.1021/acs.jpcc.7b04193

DOI: 10.1021/acs.jpcc.7b04193

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.