Synergy of ZnO Nanowire Arrays and Electrospun Membrane Gradient Wrinkles in Piezoresistive Materials for Wide-Sensing Range and High-Sensitivity Flexible Pressure Sensor

Abstract

Flexible pressure sensors have come under the spotlight because of their widespread adoption in human motion detection and human‒machine interactions. However, manufacturing pressure sensors with broad sensing ranges and large sensitivities continues to be a daunting task. Herein, a pressure sensor based on a gradient wrinkled electrospun polyurethane membrane with MXene-embedded ZnO nanowire arrays (ZAGW) was proposed. Under tiny pressure, dramatic increases in the contact area caused by interlocks of MXene-embedded ZnO nanowire arrays contributed to realizing a high sensitivity (236.5 kPa⁻¹). Additionally, the wide-sensing range (0–260 kPa) came from the fact that a wrinkled membrane with a gradient contact height ensured a continuous contact area change by gradually activating contact wrinkles. Meanwhile, the contact states of the gradient wrinkled membrane at varying pressures were investigated to expound the sensing mechanism of the ZAGW sensor. These exceptional performances enabled the ZAGW sensor to have vast application potential in human motion monitoring and tactile sensing. Furthermore, the ZAGW sensor can be integrated into the sensor array to monitor the pressure distribution. Considering the outstanding performance, the combination of ZnO nanowire arrays and electrospun membrane gradient wrinkles provides an innovative avenue for future sensing research.

Keywords

Pressure sensor / Interlocked ZnO nanowire arrays / Gradient wrinkled electrospun membrane / High sensitivity / Wide-sensing range

References

[1] Li WD, Pu JH, Zhao X, Jia J, Ke K, Bao RY, Liu ZY, Yang MB, Yang W. Scalable fabrication of flexible piezoresistive pressure sensors based on occluded microstructures for subtle pressure and force waveform detection. J Mater Chem C, 2020, 8: 16774,

[2] Jia J, Peng Y, Zha XJ, Ke K, Bao RY, Liu ZY, Yang MB, Yang W. Janus and Heteromodulus elastomeric fiber mats feature regulable stress redistribution for boosted strain sensing performance. ACS Nano, 2022, 16: 16806,

[3] Bai NN, Wang L, Wang Q, Deng J, Wang Y, Lu P, Huang J, Li G, Zhang Y, Yang JL, Xie KW, Zhao XH, Guo CF. Graded intrafillable architecture-based iontronic pressure sensor with ultra-broad-range high sensitivity. Nat Commun, 2020, 11: 209,

[4] Li WD, Ke K, Jia J, Pu JH, Zhao X, Bao RY, Liu ZY, Bai L, Zhang K, Yang MB, Yang W. Recent advances in multiresponsive flexible sensors towards E-skin: a delicate design for versatile sensing. Small, 2021, 18: 2103734,

[5] Bai NN, Wang L, Xue YH, Wang Y, Hou XY, Li G, Zhang Y, Cai MK, Zhao LY, Guan FY, Wei XY, Guo CF. Graded interlocks for iontronic pressure sensors with high sensitivity and high linearity over a broad range. ACS Nano, 2022, 16: 4338,

[6] Gong T, Jia J, Sun XR, Li WD, Ke K, Bao RY, Yang W. Design strategy for hierarchical structure of carbon black on microporous elastomer surface toward stretchable and compressive strain sensors. Carbon, 2023, 206: 53,

[7] Zhang Y, Wang YF, Guan Y, Zhang YJ. Peptide-enhanced tough, resilient and adhesive eutectogels for highly reliable strain/pressure sensing under extreme conditions. Nat Commun, 2022, 13: 6671,

[8] Ates HC, Yetisen AK, Güder F, Dincer C. Wearable devices for the detection of COVID-19. Nat Electron, 2021, 4: 13,

[9] Wu Q, Qiao YC, Guo R, Naveed S, Hirtz T, Li XS, Fu YX, Wei YH, Deng G, Yang Y, Wu XM, Ren TL. Triode-mimicking graphene pressure sensor with positive resistance variation for physiology and motion monitoring. ACS Nano, 2020, 14: 10104,

[10] Zhu C, Wu JW, Yan JH, Liu XQ. Advanced fiber materials for wearable electronics. Adv Fiber Mater, 2023, 5: 12,

[11] Gerratt AP, Michaud HO, Lacour SP. Elastomeric electronic skin for prosthetic tactile sensation. Adv Funct Mater, 2015, 25: 2287,

[12] Xu RD, She MH, Liu JX, Zhao SK, Liu H, Qu LJ, Tian MW. Breathable kirigami-shaped ionotronic e-textile with touch/strain sensing for friendly epidermal electronics. Adv Fiber Mater, 2022, 4: 1525,

[13] Zhang Y, Hu YG, Zhu PL, Han F, Zhu Y, Sun R, Wong CP. Flexible and highly sensitive pressure sensor based on microdome-patterned PDMS forming with assistance of colloid self-assembly and replica technique for wearable electronics. ACS Appl Mater Interfaces, 2017, 9: 35968,

[14] Lee JJ, Gandla S, Lim B, Kang SJ, Kim S, Lee S, Kim S. Alcohol-based highly conductive polymer for conformal nanocoatings on hydrophobic surfaces toward a highly sensitive and stable pressure sensor. NPG Asia Mater, 2020, 12: 65,

[15] Shao Q, Niu ZQ, Hirtz M, Jiang L, Liu YJ, Wang ZH, Chen XD. High-performance and tailorable pressure sensor based on ultrathin conductive polymer film. Small, 2014, 10: 1466,

[16] Wang ZH, Zhang L, Liu J, Jiang H, Li CZ. Flexible hemispheric microarrays of highly pressure-sensitive sensors based on breath figure method. Nanoscale, 2018, 10: 10691,

[17] Chen M, Li K, Cheng GM, He K, Li WW, Zhang DS, Li WM, Feng Y, Wei L, Li WJ, Zhong GH, Yang CL. Touchpoint-tailored ultrasensitive piezoresistive pressure sensors with a broad dynamic response range and low detection limit. ACS Appl Mater Interfaces, 2019, 11: 2551,

[18] Liu WF, Wang JB, Xu XZ, Zhao CZ, Xu XB, Weiss PS. Single-step dual-layer photolithography for tunable and scalable nanopatterning. ACS Nano, 2021, 15: 12180,

[19] Peng SH, Blanloeuil P, Wu SY, Wang CH. Rational design of ultrasensitive pressure sensors by tailoring microscopic features. Adv Mater Interfaces, 2018, 5: 1800403,

[20] Wang K, Lou Z, Wang LL, Zhao LJ, Zhao SF, Wang DY, Han W, Jiang K, Shen GZ. Bioinspired interlocked structure-induced high deformability for two-dimensional titanium carbide (MXene)/natural microcapsule-based flexible pressure sensors. ACS Nano, 2019, 13: 9139,

[21] Yu SX, Li LL, Wang JJ, Liu E, Zhao JX, Xu F, Cao YP, Lu CH. Light-boosting highly sensitive pressure pensors based on bioinspired multiscale surface structures. Adv Funct Mater, 2020, 30: 1907091,

[22] Zhang JQ, Sun T, Liu LP, Niu SC, Wang KJ, Song HL, Han QG, Han ZW, Ren LQ, Lin Q. Flexible and highly sensitive pressure sensors based on microcrack arrays inspired by scorpions. RSC Adv, 2019, 9: 22740,

[23] Yin B, Liu XM, Gao HY, Fu TD, Yao J. Bioinspired and bristled microparticles for ultrasensitive pressure and strain sensors. Nat Commun, 2018, 9: 5161,

[24] Ahmed A, Sharma S, Adak B, Hossain MM, LaChance AM, Mukhopadhyay S, Sun LY. Two-dimensional MXenes: new frontier of wearable and flexible electronics. InfoMat, 2022, 4: 12295,

[25] Song DK, Li XF, Li XP, Jia XQ, Min P, Yu ZZ. Hollow-structured MXene-PDMS composites as flexible, wearable and highly bendable sensors with wide working range. J Colloid Interface Sci, 2019, 555: 751,

[26] Lou Z, Chen S, Wang LL, Jiang K, Shen GZ. An ultra-sensitive and rapid response speed graphene pressure sensors for electronic skin and health monitoring. Nano Energy, 2016, 23: 7,

[27] Liu RR, Hou LL, Yue GC, Li HK, Zhang JS, Liu J, Wang N, Cui ZM, Zhao Y, Liu TX, Miao BB, Bai J. Progress of fabrication and applications of electrospun hierarchically porous nanofibers. Adv Fiber Mater, 2023, 4: 604,

[28] Cheng H, Wang B, Yang K, Yang YQ, Wang CX. A high-performance piezoresistive sensor based on poly (styrene-co-methacrylic acid)@polypyrrole microspheres/graphene-decorated TPU electrospun membrane for human motion detection. Chem Eng J, 2021, 426,

[29] Pang Y, Zhang KN, Yang Z, Jiang S, Ju ZY, Li YX, Wang XF, Wang DY, Jian MQ, Zhang YY, Liang RR, Tian H, Yang Y, Ren TL. Epidermis microstructure inspired graphene pressure sensor with random distributed spinosum for high sensitivity and large linearity. ACS Nano, 2018, 12: 2346,

[30] Ha M, Lim S, Park J, Um DS, Lee Y, Ko H. Bioinspired interlocked and hierarchical design of ZnO nanowire arrays for static and dynamic pressure-sensitive electronic skins. Adv Funct Mater, 2015, 25: 2841,

[31] Liu R, Li JM, Li M, Zhang QH, Shi GY, Li YG, Hou CY, Wang HZ. A MXene-coated air-permeable pressure-sensing fabric for smart wear. ACS Appl Mater Interfaces, 2020, 12: 46446,

[32] Ma JF, Fu WF, Meng YQ, Yu ZQ, Cai S, Niu BB. “Electrochemical” growth of ZnO coating on carbon fiber. Mater Chem Phys, 2016, 171: 22,

[33] Chao MY, He LZ, Gong M, Li N, Li XB, Peng LF, Shi F, Zhang LQ, Wan PB. Breathable Ti₃C₂T_x MXene/protein nanocomposites for ultrasensitive medical pressure sensor with degradability in solvents. ACS Nano, 2021, 15: 9746,

[34] Hou NL, Zhao YW, Jiang RH, Nie LZ, Yang JX, Wang YF, Li L, Li XT, Zhang WM. Flexible piezoresistive sensor based on surface modified dishcloth fibers for wearable electronics device. Colloid Surface A, 2022, 650,

[35] Yan JF, Ma YN, Jia G, Zhao SR, Yue Y, Cheng F, Zhang CK, Cao ML, Xiong YC, Shen PZ, Gao YH. Bionic MXene based hybrid film design for an ultrasensitive piezoresistive pressure sensor. Chem Eng J, 2022, 431,

[36] Zhu M, Yue Y, Cheng YF, Zhang YN, Su J, Long F, Jiang XL, Ma YN, Gao YH. Hollow MXene sphere/reduced graphene aerogel composites for piezoresistive sensor with ultra-high sensitivity. Adv Electron Mater, 2020, 6: 1901064,

[37] Yang M, Cheng YF, Yue Y, Chen Y, Gao H, Li L, Cai B, Liu WJ, Wang ZY, Guo HZ, Liu NS, Gao YH. High-performance flexible pressure sensor with a self-healing function for tactile feedback. Adv Sci, 2022, 9: 2200507,

[38] Cheng YF, Ma YN, Li LY, Zhu M, Yue Y, Liu WJ, Wang LF, Jia SF, Li C, Qi TY, Wang JB, Gao YH. Bioinspired microspines for a high-performance spray Ti₃C₂T_x MXene-based piezoresistive sensor. ACS Nano, 2020, 14: 2145,

[39] Yue Y, Liu NS, Liu WJ, Li M, Ma YN, Luo C, Wang SL, Rao JY, Hu XK, Su J, Zhang Z, Huang Q, Gao YH. 3D hybrid porous Mxene-sponge network and its application in piezoresistive sensor. Nano Energy, 2018, 50: 79,

[40] Yang T, Deng WL, Chu X, Wang X, Hu YT, Fan X, Song J, Gao YY, Zhang BB, Tian G, Xiong D, Zhong S, Tang LH, Hu YH, Yang WQ. Hierarchically microstructure-bioinspired flexible piezoresistive bioelectronics. ACS Nano, 2021, 15: 11555,

[41] Liu Y, Tao J, Yang WK, Zhang YF, Li J, Xie HL, Bao RR, Gao WC, Pan CF. Biodegradable, breathable leaf vein-based tactile sensors with tunable sensitivity and sensing range. Small, 2021, 18: 2106906,

[42] Pan WL, Wang YL, Ouyang GY, Ren MC, Cao MH. High-sensitivity and low-cost wearable flexible pressure sensor based on MOFs. ACS Appl Electron Mater, 2023, 5: 3851,

[43] Su TY, Liu NS, Lei DD, Wang LX, Ren ZQ, Zhang QX, Su J, Zhang Z, Gao YH. Flexible MXene/bacterial cellulose film sound detector based on piezoresistive sensing mechanism. ACS Nano, 2022, 16: 8461,

[44] Chang KQ, Dong JC, Mao YH, Peng YD, Pu L, Meng J, Guo MH, Ma PM, Huang YP, Liu TX. Presenting the shape of sound through a dual-mode strain/tactile sensor. J Mater Chem A, 2023, 11: 18179,

[45] Shi S, Wang YY, Meng QY, Lan ZY, Liu CC, Zhou Z, Sun QF, Shen XP. Conductive cellulose-derived carbon nanofibrous membranes with superior softness for high-resolution pressure sensing and electrophysiology monitoring. ACS Appl Mater Interfaces, 1903, 2022: 15

[46] Lin XZ, Bing Y, Li F, Mei HX, Liu S, Fei T, Zhao HR, Zhang T. An all-nanofiber-based, breathable, ultralight electronic skin for monitoring physiological signals. Adv Mater Technol, 2022, 7: 2101312,

[47] Cheng HN, Tan YS, Zhang NY, Yin YJ, Wang CX. Multifunctional Ti₃C₂T_x MXene/Poly(Styrene-Methacrylic Acid)@Polypyrrole nanospheres/thermoplastic polyurethane electrospinning membrane for high sensitivity pressure sensing and pressure-electrothermal. Adv Mater Interfaces, 2022, 9: 2200614,

[48] Yang S, Ding K, Wang W, Wang TY, Gong HL, Shu DK, Zhou Z, Jiao L, Cheng BW, Ni YH. Electrospun fiber-based high-performance flexible multi-level micro-structured pressure sensor: design, development and modelling. Chem Eng J, 2022, 431,

[49] Pang XD, Tan HZ, Durlach NI. Manual discrimination of force using active finger motion. Percept Psychophys, 1991, 49: 531,

[50] Khan Y, Ostfeld AE, Lochner CM, Pierre A, Arias AC. Monitoring of vital signs with flexible and wearable medical devices. Adv Mater, 2016, 28: 4373,

[51] Wang L, Jackman JA, Tan EL, Park JH, Potroz MG, Hwang ET, Cho NJ. High-performance, flexible electronic skin sensor incorporating natural microcapsule actuators. Nano Energy, 2017, 36: 38,

[52] Ge J, Sun L, Zhang FR, Zhang Y, Shi LA, Zhao HY, Zhu HW, Jiang HL, Yu SH. A stretchable electronic fabric artificial skin with pressure-, lateral strain-, and flexion-sensitive properties. Adv Mater, 2016, 28: 722,

[53] Kim JJ, Wang Y, Wang H, Lee S, Yokota T, Someya T. Skin electronics: next-generation device platform for virtual and augmented reality. Adv Funct Mater, 2021, 31: 2009602,

[54] Ma Y, Shi L, Chen M, Li Z, Wu LM. Bioinspired hierarchical polydimethylsiloxane/polyaniline array for ultrasensitive pressure monitoring. Chem Eng J, 2022, 441,

[55] Naguib M, Mochalin VN, Barsoum MW, Gogotsi Y. 25th anniversary article: MXenes: a new family of two-dimensional materials. Adv Mater, 2014, 26: 992,

Funding

National Natural Science Foundation of China(No. 21908141)