Cited 0 time in webofscience Cited 1 time in scopus

Effects of the Interface between Inorganic and Organic Components in a Bi2Te3-Polypyrrole Bulk Composite on Its Thermoelectric Performance

Title
Effects of the Interface between Inorganic and Organic Components in a Bi2Te3-Polypyrrole Bulk Composite on Its Thermoelectric Performance
Authors
Kim, ChamLopez, David Humberto
DGIST Authors
Kim, Cham; Lopez, David Humberto
Issue Date
2021-06
Citation
Materials, 14(11), 3080
Type
Article
Author Keywords
thermoelectric materialBi2Te3polypyrrolecompositeinterface
Keywords
HIGH FIGUREBI2TE3POLYPYRROLEPEDOTPSSTELLURIDEDEVICESPOWDER
ISSN
1996-1944
Abstract
We provided a method to hybridize Bi2Te3 with polypyrrole, thus forming an inorganic/organic bulk composite (Bi2Te3-polypyrrole), in which the effects of energy band junction and phonon scattering were expected to occur at the interface of the two components. Bi2Te3-polypyrrole exhibited a considerably high Seebeck coefficient compared to pristine Bi2Te3, and thus it recorded a somewhat increased power factor despite the loss in electrical conductivity caused by the organic component, polypyrrole. Bi2Te3-polypyrrole also exhibited much lower thermal conductivity than pristine Bi2Te3 because of the phonon scattering effect at the interface. We successfully brought about the decoupling phenomenon of electrical and thermal properties by devising an inorganic/organic composite and adjusting its fabrication condition, thereby optimizing its thermoelectric performance, which is considered the predominant property for n-type binary Bi2Te3 reported so far.
URI
http://hdl.handle.net/20.500.11750/15380
DOI
10.3390/ma14113080
Publisher
MDPI Open Access Publishing
Related Researcher
Files:
There are no files associated with this item.
Collection:
Division of Nanotechnology1. Journal Articles


qrcode mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE