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- Title
Control of the Charge Carrier Concentration and Hall Mobility in PEDOT:PSS Thermoelectric Films.
- Authors
Kim, Sung Hyun
- Abstract
We investigated the effect of graphene quantum dots (GQDs) on the thermoelectric properties of free-standing poly(3,4-ethylene dioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) films. The electrical conductivity and Seebeck coefficient of the film containing 0.50 vol% GQDs are 164.60 S/cm and 34.85 μV/K, compared with 22.50 S/cm and 27.72 μV/K, respectively, for the pristine PEDOT:PSS film without GQDs. The power factor (PF) increased up to 22.37 μW/mK2, which is ~13 times higher than that (1.73 μW/mK2) of the pristine film through the selective dedoping of PEDOT by the chemical treatment. Thus, the improved PF is due to the optimized charge carrier concentration and increased Hall mobility by the morphological and structural evolution.
- Subjects
QUANTUM dots; GRAPHENE; ELECTRIC power factor; HALL mobility; THERMOELECTRIC materials
- Publication
Bulletin of the Korean Chemical Society, 2017, Vol 38, Issue 12, p1460
- ISSN
0253-2964
- Publication type
Article
- DOI
10.1002/bkcs.11327