Display options
Cite
Villares A, Lydon DP, Porrès L, et al. Preparation of ordered films containing a phenylene ethynylene oligomer by the Langmuir-Blodgett technique. J Phys Chem B. 2007;111(25):7201-9doi: 10.1021/jp072052h.
Villares, A., Lydon, D. P., Porrès, L., Beeby, A., Low, P. J., Cea, P., & Royo, F. M. (2007). Preparation of ordered films containing a phenylene ethynylene oligomer by the Langmuir-Blodgett technique. The journal of physical chemistry. B, 111(25), 7201-9. https://doi.org/10.1021/jp072052h
Villares, Ana, et al. "Preparation of ordered films containing a phenylene ethynylene oligomer by the Langmuir-Blodgett technique." The journal of physical chemistry. B vol. 111,25 (2007): 7201-9. doi: https://doi.org/10.1021/jp072052h
Villares A, Lydon DP, Porrès L, Beeby A, Low PJ, Cea P, Royo FM. Preparation of ordered films containing a phenylene ethynylene oligomer by the Langmuir-Blodgett technique. J Phys Chem B. 2007 Jun 28;111(25):7201-9. doi: 10.1021/jp072052h. Epub 2007 Jun 07. PMID: 17552562.
Copy Download .nbib Format: NLM
Share it on

J Phys Chem B. 2007 Jun 28;111(25):7201-9. doi: 10.1021/jp072052h. Epub 2007 Jun 07.

Preparation of ordered films containing a phenylene ethynylene oligomer by the Langmuir-Blodgett technique.

The journal of physical chemistry. B

Ana Villares, Donocadh P Lydon, Laurent Porrès, Andrew Beeby, Paul J Low, Pilar Cea, Fèlix M Royo

Affiliations

  1. Departamento de Química OrgAnica-Química Física, Area de Química Física, Facultad de Ciencias, Universidad de Zaragoza, Zaragoza, Spain.

PMID: 17552562 DOI: 10.1021/jp072052h

Abstract

This paper reports the fabrication and characterization of Langmuir and Langmuir-Blodgett (LB) films incorporating an oligo(phenylene-ethynylene) (OPE) derivative, namely, 4-[4-(4-hexyloxyphenylethynyl)-phenylethynyl]-benzoic acid (HBPEB). Conditions appropriate for deposition of monolayers of HBPEB at the air-water interface have been established and the resulting Langmuir films characterized by a combination of surface pressure and surface potential versus area per molecule isotherms, Brewster angle microscopy, and ultraviolet reflection spectroscopy. The Langmuir films are readily transferred onto solid substrates, and one-layer LB films transferred at several surface pressures onto mica substrates have been analyzed by means of atomic force microscopy, from which it can be concluded that 14 mN/m is an optimum surface pressure of transference, giving well-ordered homogeneous films without three-dimensional defects and a low surface roughness. The optical and emissive properties of the LB films have been determined with significant blue-shifted absorption spectra indicating formation of two-dimensional H aggregates and a Stokes shift illustrating the effects of the solid-like environment on the molecular chromophore.

Publication Types