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Conductivity of PEDOT:PSS on Spin-Coated and Drop Cast Nanofibrillar Cellulose Thin Films.

Valtakari D, Liu J, Kumar V, Xu C, Toivakka M, Saarinen JJ - Nanoscale Res Lett (2015)

Bottom Line: Aqueous dispersion of conductive polymer poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) ( PSS) was deposited on spin-coated and drop cast nanofibrillar cellulose (NFC)-glycerol (G) matrix on a glass substrate.The effects of annealing temperature, the coating method of NFC-G, and the coating time intervals on the electrical performance of the PSS were characterized.PSS on drop cast NFC-G resulted in 3 orders of magnitude increase in the electrical conductivity compared to reference PSS film on a reference glass substrate, whereas the optical transmission was only slightly decreased.

View Article: PubMed Central - PubMed

Affiliation: Laboratory of Paper Coating and Converting, Center for Functional Materials (FunMat), Abo Akademi University, Porthansgatan 3, 20500, Åbo/Turku, Finland. dimitar.valtakari@abo.fi.

ABSTRACT

Unlabelled: Aqueous dispersion of conductive polymer poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (

Pedot: PSS) was deposited on spin-coated and drop cast nanofibrillar cellulose (NFC)-glycerol (G) matrix on a glass substrate. A thin glycerol film was utilized on plasma-treated glass substrate to provide adequate adhesion for the NFC-glycerol (NFC-G) film. The effects of annealing temperature, the coating method of NFC-G, and the coating time intervals on the electrical performance of the

Pedot: PSS were characterized.

Pedot: PSS on drop cast NFC-G resulted in 3 orders of magnitude increase in the electrical conductivity compared to reference

Pedot: PSS film on a reference glass substrate, whereas the optical transmission was only slightly decreased. The results point out the importance of the interaction between the

Pedot: PSS and the NFC-G for the electrical and barrier properties for thin film electronics applications.

No MeSH data available.


Related in: MedlinePlus

PEDOT:PSS sheet resistance on spin coated NFC-G samples with variable time interval between the spin coating and annealing
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Fig5: PEDOT:PSS sheet resistance on spin coated NFC-G samples with variable time interval between the spin coating and annealing

Mentions: Finally, the time dependence of the start of the annealing from the PEDOT:PSS coating is shown in Fig. 5. It is clearly seen that starting the annealing instantly 1 min after the coating results in lower sheet resistance with lower annealing temperatures than the 3-min interval. The 1-min samples have higher moisture content, and the samples annealed at higher temperatures may drive the water and perhaps some glycerol rapidly out from the PEDOT:PSS/NFC-G interface region, disallowing PEDOT and PSS to rearrange. The sheet resistance levels in Fig. 5 at 80 °C are approximately twice as high to those in Fig. 4. A closer look reveals that the 3-min samples have a similar instability issue at 60 °C as with the PEDOT:PSS reference response shown in Fig. 2. The overall performance improves and becomes more stable converging to 300–400 kΩ/□ sheet resistance level between annealing temperatures of 80 and 130 °C.Fig. 5


Conductivity of PEDOT:PSS on Spin-Coated and Drop Cast Nanofibrillar Cellulose Thin Films.

Valtakari D, Liu J, Kumar V, Xu C, Toivakka M, Saarinen JJ - Nanoscale Res Lett (2015)

PEDOT:PSS sheet resistance on spin coated NFC-G samples with variable time interval between the spin coating and annealing
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4593988&req=5

Fig5: PEDOT:PSS sheet resistance on spin coated NFC-G samples with variable time interval between the spin coating and annealing
Mentions: Finally, the time dependence of the start of the annealing from the PEDOT:PSS coating is shown in Fig. 5. It is clearly seen that starting the annealing instantly 1 min after the coating results in lower sheet resistance with lower annealing temperatures than the 3-min interval. The 1-min samples have higher moisture content, and the samples annealed at higher temperatures may drive the water and perhaps some glycerol rapidly out from the PEDOT:PSS/NFC-G interface region, disallowing PEDOT and PSS to rearrange. The sheet resistance levels in Fig. 5 at 80 °C are approximately twice as high to those in Fig. 4. A closer look reveals that the 3-min samples have a similar instability issue at 60 °C as with the PEDOT:PSS reference response shown in Fig. 2. The overall performance improves and becomes more stable converging to 300–400 kΩ/□ sheet resistance level between annealing temperatures of 80 and 130 °C.Fig. 5

Bottom Line: Aqueous dispersion of conductive polymer poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) ( PSS) was deposited on spin-coated and drop cast nanofibrillar cellulose (NFC)-glycerol (G) matrix on a glass substrate.The effects of annealing temperature, the coating method of NFC-G, and the coating time intervals on the electrical performance of the PSS were characterized.PSS on drop cast NFC-G resulted in 3 orders of magnitude increase in the electrical conductivity compared to reference PSS film on a reference glass substrate, whereas the optical transmission was only slightly decreased.

View Article: PubMed Central - PubMed

Affiliation: Laboratory of Paper Coating and Converting, Center for Functional Materials (FunMat), Abo Akademi University, Porthansgatan 3, 20500, Åbo/Turku, Finland. dimitar.valtakari@abo.fi.

ABSTRACT

Unlabelled: Aqueous dispersion of conductive polymer poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (

Pedot: PSS) was deposited on spin-coated and drop cast nanofibrillar cellulose (NFC)-glycerol (G) matrix on a glass substrate. A thin glycerol film was utilized on plasma-treated glass substrate to provide adequate adhesion for the NFC-glycerol (NFC-G) film. The effects of annealing temperature, the coating method of NFC-G, and the coating time intervals on the electrical performance of the

Pedot: PSS were characterized.

Pedot: PSS on drop cast NFC-G resulted in 3 orders of magnitude increase in the electrical conductivity compared to reference

Pedot: PSS film on a reference glass substrate, whereas the optical transmission was only slightly decreased. The results point out the importance of the interaction between the

Pedot: PSS and the NFC-G for the electrical and barrier properties for thin film electronics applications.

No MeSH data available.


Related in: MedlinePlus