Title

Boojum And Stripe Textures In Long-Range Orientationally Ordered Monolayers On Solid Substrates

Abstract

Long-range organization of molecular tilt azimuth is a striking feature in monolayers at the air-water interface. We show that the boojum and stripe textures of pentadecanoic acid (PDA) with the continuous variations of molecular tilt azimuth formed at the air-water interface at temperatures lower than room temperature can be preserved after being transferred to glass substrates at low dipping speeds. The long-range tilt order in the transferred boojums and stripes is resolved by frictional force microscopy at room temperature, suggesting that the tilt order is "frozen" through the interaction of PDA molecules with the glass surface. The transferred stripe structure can be used as a unique alignment layer to induce a continuously azimuthal orientation of nematic liquid crystals. © 2010 American Chemical Society.

Publication Date

2-1-2011

Publication Title

Langmuir

Volume

27

Issue

3

Number of Pages

1051-1055

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1021/la103967j

Socpus ID

79952760353 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/79952760353

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