Transparent, flexible and recyclable nanopaper-based touch sensors fabricated <i>via</i> inkjet-printing

Ling, Hao; Chen, Ruwei; Huang, Qikai; Shen, Feng; Wang, Yuyuan; Wang, Xiaohui

doi:10.1039/d0gc00658k

Cited by 55 publications

(44 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[ 49 ] Although these oxides can grant high‐performance, they are quite expensive and not environmentally friendly (e.g., they are not easily recyclable, and ITO in particular relies on In, a critical material). [ 25,50 ] These characteristics, combined with a general brittleness, make ITO and AZO unsuitable for application in stretchable and conformal devices, such as wearable electronics and bendable displays. As such, these limitations have motivated an increased research effort toward alternative solutions, based on Ag‐based materials [ 51,52 ] and GBM.…”

Section: Introductionmentioning

confidence: 99%

Environmentally Friendly Graphene Inks for Touch Screen Sensors

Tkachev

Monteiro

Santos

et al. 2021

Adv Funct Materials

View full text Add to dashboard Cite

Graphene‐based materials have attracted significant attention in many technological fields, but scaling up graphene‐based technologies still faces substantial challenges. High‐throughput top‐down methods generally require hazardous, toxic, and high‐boiling‐point solvents. Here, an efficient and inexpensive strategy is proposed to produce graphene dispersions by liquid‐phase exfoliation (LPE) through a combination of shear‐mixing (SM) and tip sonication (TS) techniques, yielding highly concentrated graphene inks compatible with spray coating. The quality of graphene flakes (e.g., lateral size and thickness) and their concentration in the dispersions are compared using different spectroscopic and microscopy techniques. Several approaches (individual SM and TS, and their combination) are tested in three solvents (N‐methyl‐2‐pyrrolidone, dimethylformamide, and cyrene). Interestingly, the combination of SM and TS in cyrene yields high‐quality graphene dispersions, overcoming the environmental issues linked to the other two solvents. Starting from the cyrene dispersion, a graphene‐based ink is prepared to spray‐coat flexible electrodes and assemble a touch screen prototype. The electrodes feature a low sheet resistance (290 Ω □−1) and high optical transmittance (78%), which provide the prototype with a high signal‐to‐noise ratio (14 dB) and multi‐touch functionality (up to four simultaneous touches). These results illustrate a potential pathway toward the integration of LPE‐graphene in commercial flexible electronics.

show abstract

Section: Introductionmentioning

confidence: 99%

Environmentally Friendly Graphene Inks for Touch Screen Sensors

Tkachev

Monteiro

Santos

et al. 2021

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

“… 23 Instead, synthetic polymers with foreseeable and reproducible mechanical and disintegration performances can be produced using controlled conditions. 119 , 122 − 124 Because of these advantages and the increasing interest in green electronics, several synthetic polymers with unique features, including PLA, PLGA, PU, PVA, PCL, poly(caprolactone)–poly(glycerol sebacate) (PGS–PCL), poly(ethylene glycol) (PEG), polydimethylsiloxane (PDMS), polybutylene succinate (PBS), and sodium carboxymethylcellulose (Na–CMC) are gaining prominence as substrates for soft, elastic transient electronics. 125 − 127 …”

Section: Structural and Functional Materials For Biodegradable Sensorsmentioning

confidence: 99%

Biodegradable Materials for Sustainable Health Monitoring Devices

Hosseini

Dervin

Ganguly

et al. 2020

ACS Appl. Bio Mater.

172

149

View full text Add to dashboard Cite

The recent advent of biodegradable materials has offered huge opportunity to transform healthcare technologies by enabling sensors that degrade naturally after use. The implantable electronic systems made from such materials eliminate the need for extraction or reoperation, minimize chronic inflammatory responses, and hence offer attractive propositions for future biomedical technology. The eco-friendly sensor systems developed from degradable materials could also help mitigate some of the major environmental issues by reducing the volume of electronic or medical waste produced and, in turn, the carbon footprint. With this background, herein we present a comprehensive overview of the structural and functional biodegradable materials that have been used for various biodegradable or bioresorbable electronic devices. The discussion focuses on the dissolution rates and degradation mechanisms of materials such as natural and synthetic polymers, organic or inorganic semiconductors, and hydrolyzable metals. The recent trend and examples of biodegradable or bioresorbable materials-based sensors for body monitoring, diagnostic, and medical therapeutic applications are also presented. Lastly, key technological challenges are discussed for clinical application of biodegradable sensors, particularly for implantable devices with wireless data and power transfer. Promising perspectives for the advancement of future generation of biodegradable sensor systems are also presented.

show abstract

“…The electromechanical properties and flexibility of touch sensors will be different due to the materials and manufacturing processes. Therein, the coating [64,65], printing [66,67], spinning [68,69], and transferring [70,71] are some method-keys of the current studies. Flexible sensor electrodes are also formed via transferring conductive materials onto elastomeric (textile or silicone).…”

Section: Manufacturing Technologiesmentioning

confidence: 99%

Flexible wearable sensors - an update in view of touch-sensing

Kim

2021

Science and Technology of Advanced Materials

View full text Add to dashboard Cite

Nowadays, much of user interface is based on touch and the touch sensors have been common for displays, Internet of things (IoT) projects, or robotics. They can be found in lamps, touch screens of smartphones, or other wide arrays of applications as well. However, the conventional touch sensors, fabricated from rigid materials, are bulky, inflexible, hard, and hard-to-wear devices. The current IoT trend has made these touch sensors increasingly important when it added in the skin or clothing to affect different aspects of human life flexibly and comfortably. The paper provides an overview of the recent developments in this field. We discuss exciting advances in materials, fabrications, enhancements, and applications of flexible wearable sensors under view of touch-sensing. Therein, the review describes the theoretical principles of touch sensors, including resistive, capacitive, and piezoelectric types. Following that, the conventional and novel materials, as well as manufacturing technologies of flexible sensors are considered to. Especially, this review highlights the multidisciplinary approaches such as e -skins, e -textiles, e -healthcare, and e -control of flexible touch sensors. Finally, we summarize the challenges and opportunities that use is key to widespread development and adoption for future research.

show abstract

Transparent, flexible and recyclable nanopaper-based touch sensors fabricated via inkjet-printing

Abstract: Using an eco-friendly PEDOT:PSS ink formula, a transparent and flexible nanopaper-based touch sensor was fabricated via inkjet-printing.

Cited by 55 publications

References 43 publications

Environmentally Friendly Graphene Inks for Touch Screen Sensors

Environmentally Friendly Graphene Inks for Touch Screen Sensors

Biodegradable Materials for Sustainable Health Monitoring Devices

Flexible wearable sensors - an update in view of touch-sensing

Contact Info

Product

Resources

About