Silver nanowires coated on cotton for flexible pressure sensors

Abstract

AgNWs are coated on cotton fibers through a simple method, and conductive cotton sheets are obtained to construct flexible pressure sensors.

Ultraflexible and transparent electroluminescent skin for real-time and super-resolution imaging of pressure distribution

“…2d, e). Despite the harsh test conditions compared to those employed in previous works [33][34][35][36] , the device showed no significant change in the pressure response during and after 10,000 loading-unloading cycles, maintaining its low I 0 and high sensitivity. We further measured the cyclic response of the sensor under a higher pressure condition by applying 1000 cycles each for 180 kPa, 500 kPa and 1 MPa ( Supplementary Fig.…”

“…Unique morphology and superior piezoresistive performance of the CNN play a critical role in the design and performance of the electroluminescent skin. Unlike previous cellulose-based pressure sensors, where microfibres are coated with conductive nanowires [33][34][35][36] , our CNN features dense cellulose nanofibres encircling each tellurium-poly(3,4-ethylenedioxythiophene):poly (styrenesulfonate) (Te-PEDOT:PSS) nanowire, forming a nanostructured surface morphology ( Fig. 1b), which enables ultrathin design (~1-µm-thick) with ultrahigh sensor sensitivity (>5000 kPa −1 ) and a wide working range.…”

“…Conventional piezoresistive pressure sensors employing composites of conductive fillers and insulating rubbers usually suffer from low sensitivity, slow response time, and significant hysteresis due to the mechanical instability of the rubber matrices 5,37 . Alternatively, conductive nanomaterials impregnated in porous structures in contact with electrodes show high sensitivity and fast response [33][34][35][36][38][39][40][41][42][43][44] but cannot offer viability due to impractical methods requiring micro-fabricated [42][43][44] or pre-established structures such as tissue paper [33][34][35] and a sponge 39 . In this work, we develop a water-based nanocellulose/Te-PEDOT:PSS nanowire hybrid ink for facile and reliable large-area fabrication of ultrathin and transparent piezoresistive layers that can be readily integrated into thin film devices such as our photonic skin.…”

Three-dimensional highly conductive silver nanowires sponges based on cotton-templated porous structures for stretchable conductors

“…cotton/SWCNT) increases obviously with mechanical pressing. 23,30 These results indicate that the unique interconnected network of cotton-based composite provides electromechanical properties. Here, the stretchable properties of cotton templated composites were investigated.…”

Ag nanowires functionalized cellulose textiles for supercapacitor and photothermal conversion

“…Recently, some researches have been coating silver nanowires on cotton or papers, and proved that silver nanowires could cooperate with cellulose fiber due to the hydrogen bonding between them. [6][7][8]However, it is still a great challenge to achieve high conductivity while keeping good mechanical and chemical durabilities of the composite textiles, and the latters are critical for device fabrication and high-speed roll to roll fabrication. [9].…”