Enhanced Power Factor of PEDOT:PSS Films Post-treated Using a Combination of Ethylene Glycol and Metal Chlorides and Temperature Dependence of Electronic Transport (325–450 K)

2020 ◽  
Vol 3 (12) ◽  
pp. 12447-12459
Author(s):  
Immanuel Paulraj ◽  
Tzu-Fang Liang ◽  
Tzyy-Schiuan Yang ◽  
Chia-Hsin Wang ◽  
Jeng-Lung Chen ◽  
...  
2013 ◽  
Vol 774-776 ◽  
pp. 593-598
Author(s):  
Aissa Boudjella

Numerical simulations have been performed to investigate the effect of the temperature on the electronic transport through a small group of molecular assembly system (MAS). The model involves two 1,4-dithiolbenzene (DTB) molecular units stacked in one dimension (1D). The currentvoltage (I-V) and the conductance voltage (G-V) analysis are presented under the influence of the temperature associated with the π-orbital coupling interactions controlled by the intermolecular spacingd. TheMASwith reduceddaffects significantly the conductance which results in reducing the conductance gap and the saturation voltageVsat. In addition, the present results show that the temperature rise effect plays an important role in determining the current flow in the saturation region. In this region, it is important to note thatVsatincreases linearly whenTgoes from 50 to 325 K.. To conclude,Vsatcan be controlled either by changing the temperature or modifying its intermolecular spacing conformation.


2012 ◽  
Vol 733 ◽  
pp. 167-170
Author(s):  
K. Ito ◽  
Chang Ming Zhao ◽  
Kohzo Ito ◽  
Yoshinori Kobayashi

The subnanoscopic structures of polyrotaxanes, prepared from α-cyclodextrins, poly(ethylene glycol), and bulky adamantane end groups, were examined by means of the positron annihilation lifetime technique, in consideration of the free-volume hole, quantified from the long-lived ortho-positronium (o-Ps) lifetimes. The influence of the chemical structure on the temperature dependence of the o-Ps lifetimes are discussed.


RSC Advances ◽  
2016 ◽  
Vol 6 (58) ◽  
pp. 53339-53344 ◽  
Author(s):  
Woohwa Lee ◽  
Young Hun Kang ◽  
Jun Young Lee ◽  
Kwang-Suk Jang ◽  
Song Yun Cho

This study investigates a treatment method with ethylene glycol for improving the thermoelectric properties of CNT/PEDOT:PSS nanocomposite films.


1993 ◽  
Vol 328 ◽  
Author(s):  
Nathanael A. Fortune ◽  
K. Murata ◽  
G. C. Papavassjuou ◽  
D. J. Lagouvardos ◽  
J. S. Zambounis

ABSTRACTWe report our results for the temperature dependence of the Hall coefficient and in-plane resistivity for the asymmetric-donor-based quasi-2D Molecular crystal τ- (P-S,S-DMEDT-TTF)2 (AuBr2)1(AuBr2)y (y≈0.75). Using a recent “geometrical representation” of the weak-field 2D Hall conductivity developed by N.P. Ong [Phys. Rev. B 43, 193 (1991)], we model the temperature dependence of these electronic transport properties in terms of the temperature dependence of the scattering path length and its anisotropy along the 2D Fermi surface.


Langmuir ◽  
2001 ◽  
Vol 17 (19) ◽  
pp. 5717-5720 ◽  
Author(s):  
Dirk Schwendel ◽  
Reiner Dahint ◽  
Sascha Herrwerth ◽  
Matthias Schloerholz ◽  
Wolfgang Eck ◽  
...  

e-Polymers ◽  
2017 ◽  
Vol 17 (6) ◽  
pp. 501-506 ◽  
Author(s):  
Soo-Kwan Kim ◽  
Jun-Hyun Mo ◽  
Jae-Yeop Kim ◽  
Kwang-Suk Jang

AbstractThis study demonstrates a simple two-step post-treatment method for improving the thermoelectric power factor of low-cost poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) films. The dry re-dispersible PEDOT:PSS pellets are cost-effective, however, they exhibit extremely low thermoelectric performance. On treating with ethylene glycol followed by hydrazine, the power factor of the PEDOT:PSS films increased from 0.0632±0.0097 μW m−1K−2 to 13.3±1.5 μW m−1K−2. The enhancement might be attributed to the effective removal of the free, non-complexed PSS chains and fine control of the oxidation level of PEDOT by the two-step post-treatment.


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