Abstract
The thermoelectric performance of poly(3,4-ethylenedioxythiophene) complexed with a poly(4-styrenesulfonic acid) (PEDOT:PSS) film was enhanced by a three-step process. First, ultrafiltration was applied to remove non-complexed PSS from PEDOT:PSS grains. The ultrafiltration treatment leads to an improvement in the power factor (S2σ) from 54.9 to 83.2 μW m -1 K-2 and a decrease in the thermal conductivity (κ) from 0.330 to 0.170 W m-1 K-1. Second, the fully de-doped PEDOT:PSS solution was prepared by addition of hydrazine, which acted as a reducing agent. Third, the two PEDOT:PSS solutions (ultrafiltered and hydrazine-treated) were mixed in different ratios by simple ultrasonication blending without any post-treatment. The optimal S2σ value of 115.5 μW m-1 K-2 (∼10 times higher than that of the pristine PEDOT:PSS film) and ZT value of 0.2 were recorded at 33 wt% of the hydrazine-treated, ultrafiltered PEDOT:PSS in the blend. This journal is
| Original language | English |
|---|---|
| Pages (from-to) | 13380-13387 |
| Number of pages | 8 |
| Journal | Journal of Materials Chemistry A |
| Volume | 2 |
| Issue number | 33 |
| DOIs | |
| Publication status | Published - 2014 Sep 7 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Renewable Energy, Sustainability and the Environment
- Materials Science(all)
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Novel solution-processable, dedoped semiconductors for application in thermoelectric devices. / Lee, Seung Hwan; Park, Hongkwan; Son, Woohyun; Choi, Hyang Hee; Kim, Jung-Hyun.
In: Journal of Materials Chemistry A, Vol. 2, No. 33, 07.09.2014, p. 13380-13387.Research output: Contribution to journal › Article
TY - JOUR
T1 - Novel solution-processable, dedoped semiconductors for application in thermoelectric devices
AU - Lee, Seung Hwan
AU - Park, Hongkwan
AU - Son, Woohyun
AU - Choi, Hyang Hee
AU - Kim, Jung-Hyun
PY - 2014/9/7
Y1 - 2014/9/7
N2 - The thermoelectric performance of poly(3,4-ethylenedioxythiophene) complexed with a poly(4-styrenesulfonic acid) (PEDOT:PSS) film was enhanced by a three-step process. First, ultrafiltration was applied to remove non-complexed PSS from PEDOT:PSS grains. The ultrafiltration treatment leads to an improvement in the power factor (S2σ) from 54.9 to 83.2 μW m -1 K-2 and a decrease in the thermal conductivity (κ) from 0.330 to 0.170 W m-1 K-1. Second, the fully de-doped PEDOT:PSS solution was prepared by addition of hydrazine, which acted as a reducing agent. Third, the two PEDOT:PSS solutions (ultrafiltered and hydrazine-treated) were mixed in different ratios by simple ultrasonication blending without any post-treatment. The optimal S2σ value of 115.5 μW m-1 K-2 (∼10 times higher than that of the pristine PEDOT:PSS film) and ZT value of 0.2 were recorded at 33 wt% of the hydrazine-treated, ultrafiltered PEDOT:PSS in the blend. This journal is
AB - The thermoelectric performance of poly(3,4-ethylenedioxythiophene) complexed with a poly(4-styrenesulfonic acid) (PEDOT:PSS) film was enhanced by a three-step process. First, ultrafiltration was applied to remove non-complexed PSS from PEDOT:PSS grains. The ultrafiltration treatment leads to an improvement in the power factor (S2σ) from 54.9 to 83.2 μW m -1 K-2 and a decrease in the thermal conductivity (κ) from 0.330 to 0.170 W m-1 K-1. Second, the fully de-doped PEDOT:PSS solution was prepared by addition of hydrazine, which acted as a reducing agent. Third, the two PEDOT:PSS solutions (ultrafiltered and hydrazine-treated) were mixed in different ratios by simple ultrasonication blending without any post-treatment. The optimal S2σ value of 115.5 μW m-1 K-2 (∼10 times higher than that of the pristine PEDOT:PSS film) and ZT value of 0.2 were recorded at 33 wt% of the hydrazine-treated, ultrafiltered PEDOT:PSS in the blend. This journal is
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U2 - 10.1039/c4ta01839g
DO - 10.1039/c4ta01839g
M3 - Article
VL - 2
SP - 13380
EP - 13387
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
SN - 2050-7488
IS - 33
ER -