Issue 4, 2004
From the journal:

Journal of Materials Chemistry

Colloidal bismuth sulfidenanoparticles: a photoelectrochemical study of the relationship between bandgap and particle size

D. Jason Riley,*a   Jonathan P. Waggetta  and  K. G. Upul Wijayanthab  

* Corresponding authors

a School of Chemistry, University of Bristol, Cantock's Close, Bristol, UK
E-mail: Jason.Riley@bris.ac.uk
Fax: +44 117 925 0612
Tel: +44 117 928 7668

b School of Chemistry, University of Bath, Calverton Down, Bath, UK

Abstract

A method of preparing Bi2S3 nanoparticles by arrested precipitation is described. It is shown that varying the amount of stabiliser employed in the preparation controls the size of the particles. The as-prepared nanoparticles may be self-assembled on a tin oxide substrate. Photocurrent studies of the Bi2S3 modified electrode indicate that the presence of an oxidisable surface trap at approximately −0.15 V vs. Ag|AgCl|3.0 mol dm−3 NaCl. Photocurrent spectra indicate that the band edge of the Bi2S3 particles is only weakly dependent on particle size, consistent with a high effective mass of electrons in this material.

Graphical abstract: Colloidal bismuth sulfide nanoparticles: a photoelectrochemical study of the relationship between bandgap and particle size

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Article information

DOI
https://doi.org/10.1039/B311517H
Article type
Paper
Submitted
15 Oct 2003
Accepted
28 Nov 2003
First published
12 Jan 2004

J. Mater. Chem., 2004,14, 704-708

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Colloidal bismuth sulfide nanoparticles: a photoelectrochemical study of the relationship between bandgap and particle size

D. J. Riley, J. P. Waggett and K. G. U. Wijayantha, J. Mater. Chem., 2004, 14, 704 DOI: 10.1039/B311517H

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