Formation of nanocomposite Langmuir-Blodgett alternate multilayers

Author

Çapan, R. ; Hassan, A.K. ; Nabok, A.V. ; Ray, A.K. ; Richardson, T.H. ; Simmonds, M.C. ; Sammon, C.

Author_Institution

Sch. of Eng., Nan technology Res. Lab., Sheffield, UK

Volume

150

Issue

4

fYear

2003

Abstract

Non-centrosymmetric alternate-layer Langmuir-Blodgett (LB) films of stearic acid and eicosylamine molecules were treated with a twelve-hour-long exposure of hydrogen sulphide (H₂S) gas. Surface plasmon resonance (SPR) experiments are carried out to monitor the change in optical properties of composite films. Structural analysis using atomic force microscopy (AFM) and Fourier transform infrared (FTIR) spectroscopy give a positive identification of the presence of cadmium sulphide (CdS) nanoparticles after the treatment. Quasistatic measurements give smaller pyroelectric activity in H₂S-gas-treated LB films than untreated ones

Keywords

Fourier transform spectra <nanocomposite LB alternate multilayers, form.>; Langmuir-Blodgett films <nanocomposite LB alternate multilayers, form.>; atomic force microscopy <nanocomposite LB alternate multilayers, form.>; infrared spectra <nanocomposite LB alternate multilayers, form.>; nanocomposites <nanocomposite LB alternate multilayers, form.>; nanoparticles <nanocomposite LB alternate multilayers, form.>; optical properties <nanocomposite LB alternate multilayers, form.>; pyroelectricity <nanocomposite LB alternate multilayers, form.>; surface plasmon resonance <nanocomposite LB alternate multilayers, form.>; AFM; CdS; CdS nanoparticles; FTIR spectroscopy; Fourier transform IR spectroscopy; H₂S; H₂S-gas-treated LB films; Langmuir Blodgett films; Langmuir-Blodgett multilayers formation; composite films; eicosylamine molecules; nanocomposite Langmuir-Blodgett alternate multilayers; optical properties; pyroelectric activity; stearic acid; structural analysis; surface plasmon resonance experiments;

fLanguage

English

Journal_Title

Circuits, Devices and Systems, IEE Proceedings -

Publisher

iet

ISSN

1350-2409

Type

jour

DOI

10.1049/ip-cds:20030556

Filename

1245979