TY - JOUR
T1 - An inkjet-printed, flexible, ultra-broadband nanocomposite film sensor for in-situ acquisition of high-frequency dynamic strains
AU - Zhou, Pengyu
AU - Liao, Yaozhong
AU - Li, Y.
AU - Pan, Dongyue
AU - Cao, Wuxiong
AU - Yang, Xiongbin
AU - Zou, Fangxin
AU - Zhou, Li min
AU - Zhang, Z.
AU - Su, Zhongqing
PY - 2019/10/1
Y1 - 2019/10/1
N2 - We present an ultralight, flexible, nanocomposite film sensor manufactured using a drop-on-demand inkjet printing approach which leverages the integrated inks directly on flexible polyimide substrates. The ink – a hybrid of nanocomposites embracing carbon black nanoparticles and polyvinyl pyrrolidone, is rigorously designed and morphologically optimized to be stable, printable and wettable. The printed film sensor has proven capability of in-situ, precisely responding to dynamic strains in a broad range from quasi-static strain, through medium-frequency vibration, to ultrasounds up to 500 kHz. This is first ever an inkjet-printed piezoresistive sensor responds to dynamic strains in such a broad band and an ultrasound of such high frequencies. Sensitivity of the sensors can be fine-tuned by adjusting the degree of conductivity via controlling the printed passes, endowing the sensors with capacity of resonating to strains of a particular frequency, authenticating inkjet-printed nanocomposite sensors can be tailor-made to accommodate specific signal acquisition demands.
AB - We present an ultralight, flexible, nanocomposite film sensor manufactured using a drop-on-demand inkjet printing approach which leverages the integrated inks directly on flexible polyimide substrates. The ink – a hybrid of nanocomposites embracing carbon black nanoparticles and polyvinyl pyrrolidone, is rigorously designed and morphologically optimized to be stable, printable and wettable. The printed film sensor has proven capability of in-situ, precisely responding to dynamic strains in a broad range from quasi-static strain, through medium-frequency vibration, to ultrasounds up to 500 kHz. This is first ever an inkjet-printed piezoresistive sensor responds to dynamic strains in such a broad band and an ultrasound of such high frequencies. Sensitivity of the sensors can be fine-tuned by adjusting the degree of conductivity via controlling the printed passes, endowing the sensors with capacity of resonating to strains of a particular frequency, authenticating inkjet-printed nanocomposite sensors can be tailor-made to accommodate specific signal acquisition demands.
KW - Broadband ultrasound signals
KW - Inkjet printing
KW - Nanocomposite sensor
KW - Structural integrity monitoring (SIM)
UR - http://www.scopus.com/inward/record.url?scp=85069862388&partnerID=8YFLogxK
U2 - 10.1016/j.compositesa.2019.105554
DO - 10.1016/j.compositesa.2019.105554
M3 - Journal article
AN - SCOPUS:85069862388
SN - 1359-835X
VL - 125
JO - Composites Part A: Applied Science and Manufacturing
JF - Composites Part A: Applied Science and Manufacturing
M1 - 105554
ER -