Issue 101, 2016, Issue in Progress
From the journal:

RSC Advances

Enhanced thermoelectric performance in a percolated bismuth sulfide composite†

Deniz P. Wong, ORCID logo ‡a   Wei-Lun Chien,‡ac   Chien-Yu Huang,ab   Cheng-en Chang,ac   Abhijit Ganguly,b   Lian-Ming Lyu,a   Jih-Shang Hwang,c   Li-Chyong Chen*b  and  Kuei-Hsien Chen ORCID logo *a  

* Corresponding authors

a Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, Taiwan
E-mail: chenkh@pub.iams.sinica.edu.tw

b Center for Condensed Matter Sciences, National Taiwan University, Taipei, Taiwan
E-mail: chenlc@ntu.edu.tw

c Institute of Optoelectronic Sciences, National Taiwan Ocean University, Keelung, Taiwan

Abstract

We synthesized a bismuth-rich bismuth sulfide (Bi2+xS3) to improve the electrical conductivity. A percolated composite was obtained by mixing Bi2+xS3 with commercial Bi2S3 so that the other thermoelectric parameters were not compromised. The Bi2+xS3 acted as a conductive percolating channel within the Bi2S3 matrix. This percolation approach retained the high Seebeck coefficient of the Bi2S3 matrix while improving the electrical conductivity. A dimensionless figure of merit (zT) up to five times that of the pure Bi2S3 sample was achieved.

Graphical abstract: Enhanced thermoelectric performance in a percolated bismuth sulfide composite

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Article information

DOI
https://doi.org/10.1039/C6RA21418E
Article type
Paper
Submitted
26 Aug 2016
Accepted
01 Oct 2016
First published
03 Oct 2016

RSC Adv., 2016,6, 98952-98955

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Enhanced thermoelectric performance in a percolated bismuth sulfide composite

D. P. Wong, W. Chien, C. Huang, C. Chang, A. Ganguly, L. Lyu, J. Hwang, L. Chen and K. Chen, RSC Adv., 2016, 6, 98952 DOI: 10.1039/C6RA21418E

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