Issue 1, 2017

Ultrathin few layer oxychalcogenide BiCuSeO nanosheets

Abstract

Layered materials with intrinsically low thermal conductivity are promising candidates for thermoelectric waste heat to electrical energy conversion. Recently bulk form BiCuSeO, a layered oxychalcogenide, has drawn attention for thermoelectric applications. However, synthesis of a two dimensional nanosheet of BiCuSeO and study of its thermoelectric properties have not been explored yet. Here, we present a facile surfactant free low temperature solvothermal synthesis of few layered ultrathin BiCuSeO nanosheets for the first time. Nanosheets of BiCuSeO exhibit a semiconducting band gap of 0.9 eV and p-type conduction. A dense hot pressed pellet of BiCuSeO nanosheets exhibits a superior power factor and lower lattice thermal conductivity compared to that of the bulk sample in the temperature range of 300–723 K.

Graphical abstract: Ultrathin few layer oxychalcogenide BiCuSeO nanosheets

Supplementary files

Article information

Article type
Research Article
Submitted
17 okt 2016
Accepted
29 okt 2016
First published
01 nov 2016

Inorg. Chem. Front., 2017,4, 84-90

Ultrathin few layer oxychalcogenide BiCuSeO nanosheets

M. Samanta, S. N. Guin and K. Biswas, Inorg. Chem. Front., 2017, 4, 84 DOI: 10.1039/C6QI00435K

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