Polyethylenedioxythiophene coatings for humidity, temperature and strain sensing polyamide fibers

Daoud, Walid A.; Xin, John Haozhong; Szeto, Yau Shan

doi:10.1016/j.snb.2004.12.067

Cited by 155 publications

(109 citation statements)

References 14 publications

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“…Huang et al reported that exposure of the PEDOT:PSS layer to water results in an increase in the resistivity of the device, consistent with previous observations [27]. Polyamide fibers coated with PEDOT-PSS polymer material were also studied for humidity and temperature sensor applications [28]. Recently Liu et al demonstrated the use of PEDOT-PSS humidity sensor application for detecting gravimetric water content in the soil samples [29].…”

Section: Introductionsupporting

confidence: 61%

“…The change of conductivity depending on the environmental conditions such as humidity and temperature is very important for device operation. The influence of relative humidity (RH) on electrical and optical properties of PEDOT:PSS has been studied extensively by several researchers [20][21][22][23][24][25]. Kawano et al reported that the degradation of solar cell devices is a result of water absorption into the PEDOT:PSS layer [26].…”

Section: Introductionmentioning

confidence: 99%

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Electrical characterization of PEDOT:PSS beyond humidity saturation

Kuş

Okur

2009

Sensors and Actuators B: Chemical

149

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a b s t r a c t PEDOT:PSS humidity sensor was fabricated using a drop-casting method between thermally evaporated gold electrodes with 30 m separation and 300 m channel width on a glass substrate. AC, DC resistivity, and AFM techniques were used to characterize the PEDOT:PSS humidity sensor in the same environmental conditions. The change of resistivity was monitored with increasing relative humidity (RH) up to 90%. The resistivity increases linearly up to a maximum value, and then it starts to decrease abruptly above 80% relative humidity (RH) after saturation of water uptake. The decrease in resistivity above 80% RH seems to be due to the water meniscus layer formed on the saturated PEDOT:PSS film. Below 80% RH, the device works like a humidity sensor.

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Section: Introductionsupporting

confidence: 61%

Section: Introductionmentioning

confidence: 99%

Electrical characterization of PEDOT:PSS beyond humidity saturation

Kuş

Okur

2009

Sensors and Actuators B: Chemical

149

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show abstract

“…İlki iletkenliğini değiştirerek nem değişimine tepki verirken, ikincisi dielektrik sabitini değiş-tirerek su buharına tepki vermektedir [113]. İletken polimerik esaslı nem sensörleri; PEDOT-PSS/PAN nanolifler [114], PEDOT-PSS/poliimid, PEDOT-PSS/likra tactel [49] ve PPy [115], elektriksel iletkenliklerini değiştirerek nem değişiklikle-rine tepki vermektedir. Nem sensör özelliği gösteren bu yüzeyler daha sonra kumaş yapısına dahil olabilmektedir [116].…”

Section: Nem Ve Sıcaklığa Duyarlı Sensör Kumaşlarunclassified

“…İletken polimerler ve karbon esaslı iletken parçacıklı polimerler, sıcak-lığa bağlı tepki vermektedir. Örneğin, PEDOT-PSS kaplı lifler, daha yüksek bir sıcaklığa maruz bırakıldığında yüzey direncinde azalma gözlemlenmiştir [49]. Kumaşlara uygulanabilen sıcaklığa duyarlı mürekkepler ve boyaların yanı sıra, fiber optik sensörler de bu görev [83] için kullanılabilmektedir.…”

Section: Nem Ve Sıcaklığa Duyarlı Sensör Kumaşlarunclassified

Elektronik Tekstillere Yönelik Akıllı Kumaş Sensörleri

Erol¹,

Çetiner²

2017

J Text Eng

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Son yıllarda küresel piyasada tekstil ve giyim sanayi, geleneksel tekstil ürünlerinden, bilgiyi adapte eden ve dolayısıyla yeni ve katma değeri yüksek akıllı tekstillere doğru kaymaya başlamıştır. Bu durum tekstil mühendisliğinin, kimya, elektronik ve malzeme bilimi gibi diğer bilimlerle, multidisipliner bir çalışma alanını oluşturmuştur. Sensörler, akıllı tekstiller alanının önemli bir bölümünü oluşturmaktadır ve geleneksel tekstillere fark yaratacak gelişmeleri içermektedir. Bu makalede akıllı kumaş sensör çeşitleri ve literatürdeki uygulamaları ele alınmıştır.

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“…13,14 Large surface area and low dimension of electrospun fibers can improve material's properties in many ways. In recent years, electrospinning technique has been developed and applied such as in filters, 15 sensor, 16,17 tissue engineering, 18 biomedical engineering, 19,20 controlled drug release, and so on. Electrospun fibers with a core-sheath structure can be achieved by coaxial electrospinning process.…”

mentioning

confidence: 99%

Preparation and properties of thermoresponsive and conductive composite fibers with core‐sheath structure

Lin

Don

Chang

et al. 2015

J. Polym. Sci. Part A: Polym. Chem.

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In this research, thermoresponsive and conductive fibers with core-sheath structure were fabricated by coaxial electrospinning. For preparing the spinning sheath solution, poly-(N-isopropylacrylamide-co-N-methylolacrylamide) (PNN) copolymer having thermoresponsive and cross-linkable properties was synthesized by free-radical polymerization using redox initiators; it was then mixed with the conductive poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) at different weight ratios in water. On the other hand, poly(butyl acrylate-co-styrene) (PBS) copolymer synthesized by emulsion polymerization was dissolved in chloroform and used as the spinning core solution. After electrospinning, the fibers were treated at 110 8C for 1 h to cross-link the PNN portion in the sheath for strengthening the fibers. Well-defined core-sheath fibers were observed from SEM pictures; the outside and inside (core) diameters were 568 6 24 and 290 6 40 nm, respectively, as determined from TEM pictures. The fiber mats were further doped by DMSO to enhance their conductivity. For the fiber mat with the weight ratio of PEDOT:PSS/PNN at 0.20 in the sheath, its surface conductivity could reach 29.4 S/ cm. In addition, the fiber mats exhibited thermoresponsive properties that both swelling ratio and electric resistance decreased with temperature. Furthermore, the fiber mats exhibited improved flexibility as evaluated via bending test.

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Polyethylenedioxythiophene coatings for humidity, temperature and strain sensing polyamide fibers

Cited by 155 publications

References 14 publications

Electrical characterization of PEDOT:PSS beyond humidity saturation

Electrical characterization of PEDOT:PSS beyond humidity saturation

Elektronik Tekstillere Yönelik Akıllı Kumaş Sensörleri

Preparation and properties of thermoresponsive and conductive composite fibers with core‐sheath structure

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