Enhanced conductivity in sorbitol-treated PEDOT–PSS. Observation of an in situ cyclodehydration reaction

Onorato, Amber; Invernale, Michael A.; Berghorn, Ian D.; Pavlik, Christopher; Sotzing, Gregory A.; Smith, Michael B.

doi:10.1016/j.synthmet.2010.08.021

Cited by 30 publications

(23 citation statements)

References 35 publications

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“…A consequence of large PEDOT grains inside the film and high PEDOT content of the external film layers would promote an independent electrochemical behaviour of most of the PEDOT in the film with a prevalent exchange of anions, similar to that observed in PEDOT films during oxidation/reduction reactions. Sorbitol also can induce some chemical changes when exposed to the polymer to produce 1,6-anhydrosorbitol [37]. Thus, a different size of the PEDOT-PSS particles, their different organization, PSS depletion at the film borders, or the presence of new chemical compounds around PSS lamellas can be the origin of the segregation of an important PEDOT fraction from the pristine PEDOT-PSS material giving a prevalent interchange of anions when sorbitol is presence.…”

Section: Discussionmentioning

confidence: 99%

Electrochemical characterization of PEDOT–PSS–Sorbitol electrodes. Sorbitol changes cation to anion interchange during reactions

Otero

Martínez

Hosaka

et al. 2011

Journal of Electroanalytical Chemistry

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Section: Discussionmentioning

confidence: 99%

Electrochemical characterization of PEDOT–PSS–Sorbitol electrodes. Sorbitol changes cation to anion interchange during reactions

Otero

Martínez

Hosaka

et al. 2011

Journal of Electroanalytical Chemistry

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“…[ 51 ] Additionally, glycerol or sorbitol treated PEDOT:PSS fi lms with high conductivity have been successfully developed as hole-injection electrodes in polymeric light-emitting devices, solar cells, and photodetectors. [ 17,18,[66][67][68][69] …”

Section: Reviewmentioning

confidence: 99%

“…5 Singh et al [45] 27.5 621. 6 Wichiansee et al [46] DMF 0.8 ± 0.1 30 ± 10 Kim et al [8] THF 0.8 ± 0.1 4 ± 1 Kim et al [8] Glycerol 9.8 86.8 Lai et al [47] 0.2-1 (Clevios PH500) 450 Lee et al [18] Sorbitol 4 × 10 −4 (Clevios P VP AI 4083) 10 Nardes et al [48] (1.1±0.1) × 10 −3 (Clevios P VP AI 4083) 5.2 ± 0.3 Nardes et al [49] 0.2-1 (Clevios P) 35 Otero et al [50] 0.24 118.3 Onorato et al [51] 1 10 2 Timpanaro et al [52] 0.2-1 (Clevios P) 10 2 Ouyang et al [53] Methoxyethanol 0.003 (Clevios P VP AI 4083) 0.61 Hu et al [54] Diethylene glycol 0.006 10 Crispin et al [55] Dimethyl sulfate 0.07 (Clevios P) 132 Reyes-Reyes et al [56] Meso-erythritol 0.4 155 Ouyang et al [43] Xylitol 12 115 Li et al [57] www.MaterialsViews.com www.advelectronicmat.de wileyonlinelibrary.com…”

Section: Reviewmentioning

confidence: 99%

Effective Approaches to Improve the Electrical Conductivity of PEDOT:PSS: A Review

Shi

Liu

Jiang

et al. 2015

Adv Elect Materials

981

812

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The rapid development of novel organic technologies has led to significant applications of the organic electronic devices such as light‐emitting diodes, solar cells, and field‐effect transistors. There is a great need for conducting polymers with high conductivity and transparency to act as the charge transport layer or electrical interconnect in organic devices. Poly(3,4‐ethylenedioxythiophene): poly(styrenesulfonic acid) (PEDOT:PSS), well‐known as the most remarkable conducting polymer, has this role owing to its good film‐forming properties, high transparency, tunable conductivity, and excellent thermal stability. In this Review, various of interesting physical and chemical approaches that can effectively improve the electrical conductivity of PEDOT:PSS are summarized, focusing especially on the mechanism of the conductivity enhancement as well as applications of PEDOT:PSS films. Prospects for future research efforts are also provided. It is expected that PEDOT:PSS films with high conductivity and transparency could be the focus of future organic electronic materials breakthroughs.

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“…The incorporation of a polar solvent with a high boiling point in PEDOT-PSS can enhance the electron transport via direct or mediated methods, resulting in improved conductivity and sensitivity. [14][15][16] Signicant attention has been paid to study the gas sensing properties in ethylene glycol-doped PEDOT-PSS thin lms. Recently, many studies have been carried out on the enhancement of gas sensitivity in doped PEDOT-PSS organic thin lms used for the detection of LPG, ammonia, nitric oxide and alcohol.…”

mentioning

confidence: 99%

Highly sensitive ethylene glycol-doped PEDOT–PSS organic thin films for LPG sensing

Pasha¹,

Khasim

Al‐Hartomy

et al. 2018

RSC Adv.

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In this study, for the first time we report the fabrication of low-cost ethylene glycol (EG)-doped PEDOT-PSS (poly 3,4-ethylenedioxythiophene:polystyrene sulfonate) organic thin film sensors for the detection of LPG at room temperature. The prepared thin films were characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), Fourier transform infrared spectroscopy (FTIR), ultraviolet-visible (UV-Vis) spectroscopy and thermogravimetric analysis (TGA) techniques for the analysis of their structural and morphological features. The doping of EG strongly improved the conductivity of pure PEDOT-PSS films by three orders of magnitude. The gas sensing responses of pristine and doped PEDOT-PSS thin films were investigated at room temperature by fabricating a sensor device on an ITO-coated glass substrate. The gas sensing characteristics of the prepared thin films were investigated for liquified petroleum gas (LPG), dimethyl propane, methane and butane test gases. The EG-doped PEDOT-PSS thin films exhibited excellent sensitivity for all the test gases, especially towards LPG, at room temperature. The sensitivity of the doped PEDOT-PSS films was recorded to be >90% for LPG with improved response and recovery time. The stability study indicated that the sensing response of doped PEDOT-PSS thin films was highly stable over a period of 30 days. Due to enhanced sensitivity, stability and fast response and recovery times, these EG-doped PEDOT-PSS thin films can be used in gas sensor technology, especially towards the detection of LPG at room temperature.

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Enhanced conductivity in sorbitol-treated PEDOT–PSS. Observation of an in situ cyclodehydration reaction

Cited by 30 publications

References 35 publications

Electrochemical characterization of PEDOT–PSS–Sorbitol electrodes. Sorbitol changes cation to anion interchange during reactions

Electrochemical characterization of PEDOT–PSS–Sorbitol electrodes. Sorbitol changes cation to anion interchange during reactions

Effective Approaches to Improve the Electrical Conductivity of PEDOT:PSS: A Review

Highly sensitive ethylene glycol-doped PEDOT–PSS organic thin films for LPG sensing

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