Conductivity Degradation Study of PEDOT: PSS Films under Heat Treatment in Helium and Atmospheric Air

Vitoratos, Evangelos; Sakkopoulos, S.; Paliatsas, N.; Emmanouil, Konstantinos; Choulis, Stelios A.

doi:10.4236/ojopm.2012.21002

Cited by 73 publications

(56 citation statements)

References 24 publications

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“…In Figure 1 the σ = f(T) curves are shown for two similar PEDOT:PSS samples heated at a rate of 5 K/min, the one under inert He, the other in ambient atmosphere from 80 to 440 K. Their shape reveals a competition between mechanisms increasing the conductivity and others which decrease it [5].…”

Section: Resultsmentioning

confidence: 99%

“…There is an increase of σ up to about 10 min (which corresponds to the intrinsic process taking place under He) and then the destructive role of oxygen and moisture prevails [5].…”

Section: Open Accessmentioning

confidence: 99%

“…From Figure 1 it can be seen that the conductivity increases monotonically until a certain temperature T m and then decreases. This implies that the conductivity of PEDOT:PSS is a result of the competition between mechanisms which increase it and others which decrease it [5]. The characteristic temperature T m where the two competitive factors equilibrate takes the values (384 ± 4) K and (405 ± 2) K for the heating rates 5 K/min and 15 K/min respectively, independent from the surrounding atmosphere He or air.…”

Section: Open Accessmentioning

confidence: 99%

“…PEDOT:PSS has extensively been used as buffer layer in organic optoelectronics and organic solar cells device applications [4,5]. Consequently, the degradation of PEDOT:PSS especially under atmospheric air containing oxygen and moisture, which influence the structure of this polymer, is crucial for the performance of organic electronic devices and it is still under investigation [5,6].…”

Section: Introductionmentioning

confidence: 99%

“…Consequently, the degradation of PEDOT:PSS especially under atmospheric air containing oxygen and moisture, which influence the structure of this polymer, is crucial for the performance of organic electronic devices and it is still under investigation [5,6]. In this work the influence of oxygen and moisture of atmospheric air is studied by the comparison of the change of d.c. conductivity of two similar samples, the one under inert He and the other under atmospheric air.…”

Section: Introductionmentioning

confidence: 99%

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Differentiation of the Aging Process of PEDOT:PSS Films under Inert Helium and Ambient Atmosphere for Two Different Rates of Thermal Treatment

Sakkopoulos¹,

Vitoratos²

2014

OJOPM

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Section: Resultsmentioning

confidence: 99%

“…There is an increase of σ up to about 10 min (which corresponds to the intrinsic process taking place under He) and then the destructive role of oxygen and moisture prevails [5].…”

Section: Open Accessmentioning

confidence: 99%

Section: Open Accessmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Differentiation of the Aging Process of PEDOT:PSS Films under Inert Helium and Ambient Atmosphere for Two Different Rates of Thermal Treatment

Sakkopoulos¹,

Vitoratos²

2014

OJOPM

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Complementary n‐Type and p‐Type Graphene Films for High Power Factor Thermoelectric Generators

Novak

Kim

et al. 2020

Adv Funct Materials

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Solution-phase exfoliated graphene has always been an attractive material for flexible thermoelectric applications, but traditional oxidative routes suffer from poor flake quality and a lack of quality doping techniques to make complementary n-type and p-type films. Here, it is demonstrated that by changing the adsorbed surfactant during the intercalation-exfoliation process (polyvinylpyrrolidone for n-type, pyrenebutyric acid for p-type), both extremely high electrical conductivity (3010 and 2330 S cm −1 ) and high Seebeck coefficients (53.1 and −45.5 µV K −1 ) can be achieved. The result is that both of these films show remarkable power factors, over 600 µW m −1 K −2 at room temperature, which is over an order of magnitude better than that in previous works demonstrating complementary n-type and p-type graphene thermoelectric films. Based on these films, a full all-graphene thermoelectric device is constructed as a proof of concept, where a peak power of 5.0 nW is recorded at a temperature difference of 50 K.

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Stretchable Conductive Polymers and Composites Based on PEDOT and PEDOT:PSS

2019

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The conductive polymer poly(3,4‐ethylenedioxythiophene) (PEDOT), and especially its complex with poly(styrene sulfonate) (PEDOT:PSS), is perhaps the most well‐known example of an organic conductor. It is highly conductive, largely transmissive to light, processible in water, and highly flexible. Much recent work on this ubiquitous material has been devoted to increasing its deformability beyond flexibility—a characteristic possessed by any material that is sufficiently thin—toward stretchability, a characteristic that requires engineering of the structure at the molecular‐ or nanoscale. Stretchability is the enabling characteristic of a range of applications envisioned for PEDOT in energy and healthcare, such as wearable, implantable, and large‐area electronic devices. High degrees of mechanical deformability allow intimate contact with biological tissues and solution‐processable printing techniques (e.g., roll‐to‐roll printing). PEDOT:PSS, however, is only stretchable up to around 10%. Here, the strategies that have been reported to enhance the stretchability of conductive polymers and composites based on PEDOT and PEDOT:PSS are highlighted. These strategies include blending with plasticizers or polymers, deposition on elastomers, formation of fibers and gels, and the use of intrinsically stretchable scaffolds for the polymerization of PEDOT.

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Conductivity Degradation Study of PEDOT: PSS Films under Heat Treatment in Helium and Atmospheric Air

Cited by 73 publications

References 24 publications

Differentiation of the Aging Process of PEDOT:PSS Films under Inert Helium and Ambient Atmosphere for Two Different Rates of Thermal Treatment

Differentiation of the Aging Process of PEDOT:PSS Films under Inert Helium and Ambient Atmosphere for Two Different Rates of Thermal Treatment

Complementary n‐Type and p‐Type Graphene Films for High Power Factor Thermoelectric Generators

Stretchable Conductive Polymers and Composites Based on PEDOT and PEDOT:PSS

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