Fully printed and flexible piezoelectric based touch sensitive skin

Sepehr, Ebrahim; Avuthu, Sai Guruva Reddy; Narakathu, Binu B.; Eshkeiti, Ali; Chlaihawi, Amer A.; Bazuin, Bradley J.; Joyce, Margaret; Atashbar, Massood Z.

doi:10.1109/icsens.2015.7370651

Cited by 35 publications

(14 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Notable demonstrations have been proposed for light detectors56, sensors78, transistors9, and on their integration into truly fully-printed opto-electronic circuits1011121314, setting a step forward in the adoption of this technology into real life. On the other hand, the enhancement of some desirable figures of merit still has to be appropriately approached to enable the implementation of a wide range of real applications.…”

mentioning

confidence: 99%

Direct-written polymer field-effect transistors operating at 20 MHz

Perinot

Kshirsagar

Malvindi

et al. 2016

Sci Rep

View full text Add to dashboard Cite

Printed polymer electronics has held for long the promise of revolutionizing technology by delivering distributed, flexible, lightweight and cost-effective applications for wearables, healthcare, diagnostic, automation and portable devices. While impressive progresses have been registered in terms of organic semiconductors mobility, field-effect transistors (FETs), the basic building block of any circuit, are still showing limited speed of operation, thus limiting their real applicability. So far, attempts with organic FETs to achieve the tens of MHz regime, a threshold for many applications comprising the driving of high resolution displays, have relied on the adoption of sophisticated lithographic techniques and/or complex architectures, undermining the whole concept. In this work we demonstrate polymer FETs which can operate up to 20 MHz and are fabricated by means only of scalable printing techniques and direct-writing methods with a completely mask-less procedure. This is achieved by combining a fs-laser process for the sintering of high resolution metal electrodes, thus easily achieving micron-scale channels with reduced parasitism down to 0.19 pF mm−1, and a large area coating technique of a high mobility polymer semiconductor, according to a simple and scalable process flow.

show abstract

mentioning

confidence: 99%

Direct-written polymer field-effect transistors operating at 20 MHz

Perinot

Kshirsagar

Malvindi

et al. 2016

Sci Rep

View full text Add to dashboard Cite

show abstract

“…From all of them, capacitive and resistive touch technologies master the touch landscape now [ 8 ]. Other solutions have been investigated, such as optical sensors [ 9 ], force sensors [ 10 ], or even inductive sensors [ 11 ]. In addition, flexible and stretch sensing approaches have also been popular using contact resistances between threads [ 12 , 13 ], with piezoelectric [ 14 ] and capacitive designs [ 15 , 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

Integration of a 2D Touch Sensor with an Electroluminescent Display by Using a Screen-Printing Technology on Textile Substrate

Ferri

Fuster

Llopis

et al. 2018

Sensors

View full text Add to dashboard Cite

Many types of solutions have been studied and developed in order to give the user feedback when using touchpads, buttons, or keyboards in textile industry. Their application on textiles could allow a wide range of applications in the field of medicine, sports or the automotive industry. In this work, we introduce a novel solution that combines a 2D touchpad with an electroluminescent display (ELD). This approach physically has two circuits over a flexible textile substrate using the screen-printing technique for wearable electronics applications. Screen-printing technology is widely used in the textile industry and does not require heavy investments. For the proposed solution, different layer structures are presented, considering several fabric materials and inks, to obtain the best results.

show abstract

“…From all of them, analog resistive and capacitive touch technologies dominate the touch landscape today [12]. Others have used optical sensing [13], force sensing [14], or even inductive sensing [15]. In combination uses, flexible and stretch sensing approaches have also been popular using contact resistances between threads [16,17], with piezoelectric [18] and capacitive designs [19,20].…”

Section: Introductionmentioning

confidence: 99%

A Wearable Textile 2D Touchpad Sensor Based on Screen-Printing Technology

et al. 2017

View full text Add to dashboard Cite

Among many of the designs used in the detection of 2D gestures for portable technology, the touchpad is one of the most complex and with more functions to implement. Its development has undergone a great push due to its use in displays, but it is not widely used with other technologies. Its application on textiles could allow a wide range of applications in the field of medicine, sports, etc. Obtaining a flexible, robust touchpad with good response and low cost is one of the objectives of this work. A textile touchpad based on a diamond pattern design using screen printing technology has been developed. This technology is widely used in the textile industry and therefore does not require heavy investments. The developed prototypes were analyzed using a particular controller for projected capacitive technologies (pro-cap), which is the most used in gesture detection. Two different designs were used to obtain the best configuration, obtaining a good result in both cases.

show abstract

Fully printed and flexible piezoelectric based touch sensitive skin

Cited by 35 publications

References 23 publications

Direct-written polymer field-effect transistors operating at 20 MHz

Direct-written polymer field-effect transistors operating at 20 MHz

Integration of a 2D Touch Sensor with an Electroluminescent Display by Using a Screen-Printing Technology on Textile Substrate

A Wearable Textile 2D Touchpad Sensor Based on Screen-Printing Technology

Contact Info

Product

Resources

About