Issue 13, 2015

Electrical conductivity of p-type BiOCl nanosheets

Abstract

High quality BiOCl nanosheets were fabricated using facile, room temperature hydrolysis of Bi(NO3)3 and HCl. The resulting nanosheets had dimensions of 500 nm with the exposed {001} facet. The band gap of the nanosheets was found to be 3.34 eV with conduction and valence band edges at −3.63 eV and −6.97 eV with respect to vacuum, respectively. The electrical conductivity of drop-cast BiOCl nanosheets was measured between aluminum patterned electrodes as a function of temperature and oxygen partial pressure (pO2). The activation energy for conduction in BiOCl was found to be 862 meV in the temperature range of 300–425 K and below 1000 mbar. The electrical conductivity varied with pO2, indicating σ ∝ pO21/4.05 and σ ∝ pO21/32 for low and sub atmospheric pressures, respectively. A prototypical device for low temperature (425 K) O2 sensing was demonstrated.

Graphical abstract: Electrical conductivity of p-type BiOCl nanosheets

Supplementary files

Article information

Article type
Communication
Submitted
21 Nov 2014
Accepted
30 Dec 2014
First published
31 Dec 2014

Chem. Commun., 2015,51, 2629-2632

Author version available

Electrical conductivity of p-type BiOCl nanosheets

Y. Myung, F. Wu, S. Banerjee, J. Park and P. Banerjee, Chem. Commun., 2015, 51, 2629 DOI: 10.1039/C4CC09295C

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements