Effect of graphene doping on the charge carrier and thermoelectric properties of RCF-Bi2S3 composites

Priyanka R. Jagadish; Mohammad Khalid; Lau Phei Li; Nowshad Amin; Rashmi Walvekar; Andy Chan

doi:10.1063/1.5120980

Effect of graphene doping on the charge carrier and thermoelectric properties of RCF-Bi₂S₃ composites

Priyanka R. Jagadish
, Mohammad Khalid
, Lau Phei Li
, Nowshad Amin
, Rashmi Walvekar
, Andy Chan

Research output: Chapter in Book/Report/Published conference proceeding › Conference contribution › peer-review

Abstract

Doping is a recognized way to modulate charge carrier properties for thermoelectric performance enhancement. Bismuth sulphide (Bi2S3) is a promising environmentally friendly alternative to toxic telluride based thermoelectric alloys, however its thermoelectric performance is limited by its poor electrical resistivity. In this paper, we report the effect of doping recycled carbon fibre (RCF)-Bi2S3 composite with graphene flakes and its corresponding effect on the charge carrier and thermoelectric properties. It is observed that the addition of graphene enhanced the power factor from 0.094 µWK−2m−1 for RCF-Bi2S3 to 1.52 µWK−2m−1 for 0.10 wt. %graphene doped RCF-Bi2S3. Doping Bi2S3 with graphene induced an energy filtering mechanism that allowed simultaneous modulation of decrease in electrical resistivity and an increase in Seebeck coefficient by 90 and 21% respectively.

Original language	English
Title of host publication	AIP Conference Proceedings
Subtitle of host publication	proceedings of the international engineering research conference - 12th EURECA 2019
Publisher	AIP Publishing LLC
Volume	2137
Edition	1
DOIs	https://doi.org/10.1063/1.5120980
Publication status	Published - 3 Jul 2019
Externally published	Yes
Event	Proceedings of the International Engineering Research conference - 12th EURECA 2019 - Selangor Darul Ehsan, Malaysia Duration: 3 Jul 2019 → 4 Jul 2019

Conference

Conference	Proceedings of the International Engineering Research conference - 12th EURECA 2019
Country/Territory	Malaysia
City	Selangor Darul Ehsan
Period	3/07/19 → 4/07/19

Access to Document

10.1063/1.5120980

Cite this

Jagadish, P. R., Khalid, M., Li, L. P., Amin, N., Walvekar, R., & Chan, A. (2019). Effect of graphene doping on the charge carrier and thermoelectric properties of RCF-Bi₂S₃ composites. In AIP Conference Proceedings: proceedings of the international engineering research conference - 12th EURECA 2019 (1 ed., Vol. 2137). AIP Publishing LLC. https://doi.org/10.1063/1.5120980

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title = "Effect of graphene doping on the charge carrier and thermoelectric properties of RCF-Bi2S3 composites",

abstract = "Doping is a recognized way to modulate charge carrier properties for thermoelectric performance enhancement. Bismuth sulphide (Bi2S3) is a promising environmentally friendly alternative to toxic telluride based thermoelectric alloys, however its thermoelectric performance is limited by its poor electrical resistivity. In this paper, we report the effect of doping recycled carbon fibre (RCF)-Bi2S3 composite with graphene flakes and its corresponding effect on the charge carrier and thermoelectric properties. It is observed that the addition of graphene enhanced the power factor from 0.094 µWK−2m−1 for RCF-Bi2S3 to 1.52 µWK−2m−1 for 0.10 wt. \%graphene doped RCF-Bi2S3. Doping Bi2S3 with graphene induced an energy filtering mechanism that allowed simultaneous modulation of decrease in electrical resistivity and an increase in Seebeck coefficient by 90 and 21\% respectively.",

author = "Jagadish, \{Priyanka R.\} and Mohammad Khalid and Li, \{Lau Phei\} and Nowshad Amin and Rashmi Walvekar and Andy Chan",

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Jagadish, PR, Khalid, M, Li, LP, Amin, N, Walvekar, R & Chan, A 2019, Effect of graphene doping on the charge carrier and thermoelectric properties of RCF-Bi₂S₃ composites. in AIP Conference Proceedings: proceedings of the international engineering research conference - 12th EURECA 2019. 1 edn, vol. 2137, AIP Publishing LLC, Proceedings of the International Engineering Research conference - 12th EURECA 2019
, Selangor Darul Ehsan, Malaysia, 3/07/19. https://doi.org/10.1063/1.5120980

Effect of graphene doping on the charge carrier and thermoelectric properties of RCF-Bi₂S₃ composites. / Jagadish, Priyanka R.; Khalid, Mohammad; Li, Lau Phei et al.
AIP Conference Proceedings: proceedings of the international engineering research conference - 12th EURECA 2019. Vol. 2137 1. ed. AIP Publishing LLC, 2019.

Research output: Chapter in Book/Report/Published conference proceeding › Conference contribution › peer-review

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T1 - Effect of graphene doping on the charge carrier and thermoelectric properties of RCF-Bi2S3 composites

AU - Jagadish, Priyanka R.

AU - Khalid, Mohammad

AU - Li, Lau Phei

AU - Amin, Nowshad

AU - Walvekar, Rashmi

AU - Chan, Andy

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AB - Doping is a recognized way to modulate charge carrier properties for thermoelectric performance enhancement. Bismuth sulphide (Bi2S3) is a promising environmentally friendly alternative to toxic telluride based thermoelectric alloys, however its thermoelectric performance is limited by its poor electrical resistivity. In this paper, we report the effect of doping recycled carbon fibre (RCF)-Bi2S3 composite with graphene flakes and its corresponding effect on the charge carrier and thermoelectric properties. It is observed that the addition of graphene enhanced the power factor from 0.094 µWK−2m−1 for RCF-Bi2S3 to 1.52 µWK−2m−1 for 0.10 wt. %graphene doped RCF-Bi2S3. Doping Bi2S3 with graphene induced an energy filtering mechanism that allowed simultaneous modulation of decrease in electrical resistivity and an increase in Seebeck coefficient by 90 and 21% respectively.

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