Title :
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
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;
Journal_Title :
Circuits, Devices and Systems, IEE Proceedings -
DOI :
10.1049/ip-cds:20030556
