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Mortise–tenon joint structured hydrophobic surface-functionalized barium titanate/polyvinylidene fluoride nanocomposites for printed self-powered wearable sensors
Nanoscale ( IF 5.8 ) Pub Date : 2021-1-21 , DOI: 10.1039/d0nr07525f Hai Li 1, 2, 3, 4, 5 , Hoseong Song 1, 2, 3, 4, 5 , Mengjie Long 6, 7, 8, 9 , Ghuzanfar Saeed 1, 2, 3, 4, 5 , Sooman Lim 1, 2, 3, 4, 5
Nanoscale ( IF 5.8 ) Pub Date : 2021-1-21 , DOI: 10.1039/d0nr07525f Hai Li 1, 2, 3, 4, 5 , Hoseong Song 1, 2, 3, 4, 5 , Mengjie Long 6, 7, 8, 9 , Ghuzanfar Saeed 1, 2, 3, 4, 5 , Sooman Lim 1, 2, 3, 4, 5
Affiliation
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Self-powered wearable sensors exhibiting high sensitivity and flexibility have attracted widespread interest in the field of wearable electronics. Herein, a 3D printing technique was employed to fabricate a fully printed, flexible self-powered sensor with high piezoelectric performance. This printing technique is based on the hydrophobic surface-functionalized barium titanate (FD-BTO)/polyvinylidene fluoride (PVDF) composite film. To strengthen the interface bond between BTO and PVDF, the BTO nanoparticles were surface functionalized using hydrophobic 1H,1H,2H,2H-perfluorodecyltriethoxysilane (PFDTES). As a result, there was an increase in the content of the β-phase in the PFDTES modified BTO (FD-BTO) nanoparticle composite film. The 3D-printed self-powered sensor based on the optimum FD-BTO/PVDF composite film exhibited excellent sensitivity (61.6 mV kPa−1) with a piezoelectric coefficient (d33) of 69.1 pC/N, which is two-fold higher than that of the unfunctionalized BTO/PVDF counterpart. Additionally, the power sensor displayed excellent mechanical durability in the 20 000 cyclic force tests. In practice, the printed devices were used as a sports wearable device to monitor and analyze athlete motion, and a self-powered printed sensor array (5 × 5), which could effectively detect the pattern image of the external pressure input. The 3D-printed self-powered sensor demonstrated herein can contribute significantly to the applications and the development of printed electronic wearable devices.
中文翻译：
用于印刷自供电可穿戴传感器的Mortenise-Tenon接头结构疏水性表面官能化钛酸钡/聚偏二氟乙烯纳米复合材料
具有高灵敏度和灵活性的自供电可穿戴传感器在可穿戴电子领域引起了广泛的关注。在本文中，采用3D打印技术来制造具有高压电性能的完全打印的，柔性的自供电传感器。此印刷技术基于疏水性表面官能化钛酸钡（FD-BTO）/聚偏二氟乙烯（PVDF）复合膜。为了增强BTO和PVDF之间的界面键，使用疏水性1 H，1 H，2 H，2 H对BTO纳米粒子进行表面功能化-全氟癸基三乙氧基硅烷（PFDTES）。结果，PFDTES改性的BTO（FD-BTO）纳米颗粒复合膜中β相的含量增加。基于最佳FD-BTO / PVDF复合膜的3D打印自供电传感器显示出出色的灵敏度（61.6 mV kPa -1）和压电系数（d 33）为69.1 pC / N，比未功能化的BTO / PVDF对应物高出两倍。此外，功率传感器在2万次循环力测试中显示出出色的机械耐久性。在实践中，这些打印设备被用作运动可穿戴设备，以监视和分析运动员的运动，并使用自供电的打印传感器阵列（5×5），可以有效检测外部压力输入的模式图像。本文演示的3D打印自供电传感器可为打印电子可穿戴设备的应用和开发做出重大贡献。
更新日期：2021-01-21
中文翻译：
用于印刷自供电可穿戴传感器的Mortenise-Tenon接头结构疏水性表面官能化钛酸钡/聚偏二氟乙烯纳米复合材料
具有高灵敏度和灵活性的自供电可穿戴传感器在可穿戴电子领域引起了广泛的关注。在本文中，采用3D打印技术来制造具有高压电性能的完全打印的，柔性的自供电传感器。此印刷技术基于疏水性表面官能化钛酸钡（FD-BTO）/聚偏二氟乙烯（PVDF）复合膜。为了增强BTO和PVDF之间的界面键，使用疏水性1 H，1 H，2 H，2 H对BTO纳米粒子进行表面功能化-全氟癸基三乙氧基硅烷（PFDTES）。结果，PFDTES改性的BTO（FD-BTO）纳米颗粒复合膜中β相的含量增加。基于最佳FD-BTO / PVDF复合膜的3D打印自供电传感器显示出出色的灵敏度（61.6 mV kPa -1）和压电系数（d 33）为69.1 pC / N，比未功能化的BTO / PVDF对应物高出两倍。此外，功率传感器在2万次循环力测试中显示出出色的机械耐久性。在实践中，这些打印设备被用作运动可穿戴设备，以监视和分析运动员的运动，并使用自供电的打印传感器阵列（5×5），可以有效检测外部压力输入的模式图像。本文演示的3D打印自供电传感器可为打印电子可穿戴设备的应用和开发做出重大贡献。
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