[1] PARK M, BOK B G, AHN J H, et al. Recent advances in tactile sensing technology［J］. Micromachines, 2018, 9(7): 321.
[2] PYO S, LEE J, BAE K, et al. Recent progress in flexible tactile sensors for human-interactive systems: From sensors to advanced applications［J］. Advanced Materials, 2021, 33(47):2005902.
[3] YANG J C, MUN J, KWON S Y, et al. Electronic skin: Recent progress and future prospects for skin-attachable devices for health monitoring, robotics and prosthetics［J］. Advanced Materials,2019,31(48):1904765.
[4] CHEN H, LYU L, ZHANG J, et al. Enhanced stretchable and sensitive strain sensor via controlled strain distribution［J］. Nanomaterials, 2020, 10(2):218.
[5] KOU H, ZHANG L, TAN Q, et al. Wireless flexible pressure sensor based on micro-patterned graphene/PDMS composite［J］. Sensors and Actuators A: Physical, 2018, 277:150-156.
[6] KIM M O, PYO S, OH Y, et al. Flexible and multi-directional piezoelectric energy harvester for self-powered human motion sensor［J］. Smart Materials and Structures, 2018, 27(3):035001.
[7] LEE B Y, CHEON C I, KIM J S, et al. Low temperature firing of PZT thick films prepared by screen printing method［J］. Materials Letters, 2002, 56(4):518-521.
[8] MAAS R, KOCH M, HARRIS N R, et al. Thick-film printing of PZT onto silicon［J］. Materials Letters, 1997, 31(1/2):109-112.
[10] CUI M, HOU T, TONG J, et al. Flexible piezoelectric tactile sensor with cilia-inspired structures based on electrospun PVDF/Fe3O4 nanofibers［J］. IEEE Sensors Journal, 2022, 22(24):24430-24438.
[12] LEE D H, DERBY B. Preparation of PZT suspensions for direct ink jet printing［J］. Journal of the European Ceramic Society, 2004, 24(6):1069-1072.
[13] WANG T, DERBY B. Ink-jet printing and sintering of PZT［J］. Journal of the American Ceramic Society, 2005, 88(8):2053-2058.
[14] KAO H L, CHO C L, CHANG L C, et al. A fully inkjet-printed strain sensor based on carbon nanotubes［J］. Coatings, 2020, 10(8):792.
[15] KWOK C K, DESU S B. Low temperature perovskite formation of lead zirconate titanate thin films by a seeding process［J］. Journal of Materials Research, 1993, 8:339-344.
[16] ZHANG Y, LIU C, WHALLEY D. Direct-write techniques for maskless production of microelectronics: A review of current state of the art technologies［C］∥Beijing, China:2009 International Conference on Electronic Packaging Technology & High Density Packaging, IEEE, 2009:497-503.
[18] AGARWALA S, GOH G L, DINH LE T S, et al. Wearable bandage-based strain sensor for home healthcare: Combining 3D aerosol jet printing and laser sintering［J］. ACS Sensors, 2019, 4(1):218-226.
[20] PAWLACZYK M, LELONKIEWICZ M, WIECZOROWSKI M. Age-dependent biomechanical properties of the skin［J］. Advances in Dermatology and Allergology/Postpy Dermatologii i Alergologii, 2013, 30(5): 302-306.
[21] HARI M A, KARUMUTHIL S C, VARGHESE S, et al. Performance enhancement of flexible and self-powered PVDF-ZnO based tactile sensors［J］. IEEE Sensors Journal, 2022, 22(10):9336-9343.
[22] MENG Q, KENELAK V, CHAND A, et al. A highly flexible, electrically conductive, and mechanically robust graphene/epoxy composite film for its self-damage detection［J］. Journal of Applied Polymer Science, 2020, 137(34):48991.
[23] YANG H, GONG L H, ZHENG Z, et al. Highly stretchable and sensitive conductive rubber composites with tunable piezoresistivity for motion detection and flexible electrodes［J］. Carbon, 2020, 158:893-903.
[26] GREGORIO J R. Determination of the , , and crystalline phases of poly(vinylidene fluoride) films prepared at different conditions［J］. Journal of Applied Polymer Science, 2006, 100(4): 3272-3279.
[28] BODKHE S, TURCOT G, GOSSELIN F P, et al. One-step solvent evaporation assisted 3D printing of piezoelectric PVDF nanocomposite structures［J］. ACS Applied Materials & Interfaces,2017,9(24):20833-20842.
[30] SEKINE T, ABE M, MURAKI K, et al. Microporous induced fully printed pressure sensor for wearable soft robotics machine interfaces［J］. Advanced Intelligent Systems, 2020, 2(12):2000179.
[31] GUO Z, YU P, LIU Y, et al. High-precision resistance strain sensors of multilayer composite structure via direct ink writing: Optimized layer flatness and interfacial strength［J］. Composites Science and Technology, 2021, 201:108530.
[32] WANG Y F, SEKINE T, TAKEDA Y, et al. Printed strain sensor with high sensitivity and wide working range using a novel brittle-stretchable conductive network［J］. ACS Applied Materials & Interfaces, 2020, 12(31):35282-35290.
