TY - JOUR
T1 - Enhanced thermoelectric power factor of PPy-based nanocomposites: Effect of decorated graphene nanoplatelets by bismuth oxide nanoparticles
AU - BOURENANE CHERIF, Younes
AU - Mekhalif, Zineb
AU - Mekki, Ahmed
AU - Bekkar Djelloul Sayah, Zakaria
AU - Rafai, Souleymen
N1 - Funding Information:
Younes Bourenane Cherif acknowledges Ecole Militaire Polytechnique d’Alger, Algeria, for his Ph.D. grant.
Publisher Copyright:
© 2023, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
PY - 2023
Y1 - 2023
N2 - In this study, a hybrid organic–inorganic material based on polypyrrole (PPy), graphene nanoplatelets (GNPs), and bismuth oxide nanoparticles (Bi
2O
3) was developed to overcome the limitations of organic materials’ thermoelectric (TE) conversion efficiency. The GNPs were decorated with Bi
2O
3 nanoparticles using a simple and effective method based on infrared irradiation and diazonium chemistry. The synthesized nanocomposites were characterized using various techniques such as X-ray diffraction, Transmission electron microscopy, Raman spectroscopy, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy to examine the structural and physical properties. The results of this study showed a promising improvement in electrical conductivity (σ) and Seebeck coefficient (S) of PPy/GNPs-Bi
2O
3 compared to pure PPy, attributed to the π–π stacking between PPy chains and GNPs surface. Bi
2O
3 enhances the TE behavior of the nanocomposite by improving charge transport and binding both components (PPy and GNPs). At room temperature, the power factor was found to be 11 times higher (1 µW m
−1 K
−2) compared to pure PPy. Further exploration at high temperatures could result in higher TE performance. Graphical abstract: [Figure not available: see fulltext.].
AB - In this study, a hybrid organic–inorganic material based on polypyrrole (PPy), graphene nanoplatelets (GNPs), and bismuth oxide nanoparticles (Bi
2O
3) was developed to overcome the limitations of organic materials’ thermoelectric (TE) conversion efficiency. The GNPs were decorated with Bi
2O
3 nanoparticles using a simple and effective method based on infrared irradiation and diazonium chemistry. The synthesized nanocomposites were characterized using various techniques such as X-ray diffraction, Transmission electron microscopy, Raman spectroscopy, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy to examine the structural and physical properties. The results of this study showed a promising improvement in electrical conductivity (σ) and Seebeck coefficient (S) of PPy/GNPs-Bi
2O
3 compared to pure PPy, attributed to the π–π stacking between PPy chains and GNPs surface. Bi
2O
3 enhances the TE behavior of the nanocomposite by improving charge transport and binding both components (PPy and GNPs). At room temperature, the power factor was found to be 11 times higher (1 µW m
−1 K
−2) compared to pure PPy. Further exploration at high temperatures could result in higher TE performance. Graphical abstract: [Figure not available: see fulltext.].
UR - http://www.scopus.com/inward/record.url?scp=85149276320&partnerID=8YFLogxK
U2 - 10.1007/s10853-023-08334-5
DO - 10.1007/s10853-023-08334-5
M3 - Article
SN - 0022-2461
VL - 58
SP - 4809
EP - 4823
JO - Journal of Materials Science
JF - Journal of Materials Science
IS - 11
ER -