Bioinspired Luminescent HOF-Based Foam as Ultrafast and Ultrasensitive Pressure and Acoustic Bimodal Sensor for Human–Machine Interactive Object and Information Recognition,Advanced Materials

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Bioinspired Luminescent HOF-Based Foam as Ultrafast and Ultrasensitive Pressure and Acoustic Bimodal Sensor for Human–Machine Interactive Object and Information Recognition
Advanced Materials ( IF 27.4 ) Pub Date : 2023-06-16 , DOI: 10.1002/adma.202303410
Xin Xu ₁ , Bing Yan ₁

Affiliation

Bionic sensors have extensively served smart robots, medical equipment, and flexible wearable devices. The luminescent pressure-acoustic bimodal sensor can be treated as a remarkable, multifunctional, integrated bionic device. Here, a blue-emitting hydrogen-bonded organic framework (HOF-TTA) as luminogen combines with melamine foam (MF), generating the flexible and elastic HOF-TTA@MF (1 and 2) as a pressure–auditory bimodal sensor. In the luminescent pressure sensing process, 1 has excellent maximum sensitivity (132.02 kPa⁻¹), low minimum detection limit (0.0 1333 Pa), fast response time (20 ms), high precision and great recyclability. 2 as a luminescent auditory sensor exhibits the highest response to the 520 Hz sound at 255−1453 Hz. In the process of sensing sound at 520 Hz, 2 possesses high sensitivity (1 648 441.3 cps Pa⁻¹ cm⁻²), low detection limit (0.36 dB) and ultrafast response time (10 ms) within 11.47−91.77 dB. The sensing mechanisms toward pressure and auditory are analyzed in detail by finite element simulation. Furthermore, 1 and 2, as a human–machine interactive bimodal sensor, can recognize nine different objects and word information of “Health”, “Phone”, and “TongJi” with high accuracy and strong robustness. This work provides a facile fabricated method of luminescent HOF-based pressure–auditory bimodal sensors and endows them with new recognition functions and dimensions.

中文翻译：

基于仿生发光 HOF 的泡沫作为超快、超灵敏压力和声学双模传感器，用于人机交互对象和信息识别

仿生传感器广泛服务于智能机器人、医疗设备、柔性可穿戴设备。发光压力声双模传感器可以被视为一种卓越的多功能集成仿生器件。在这里，作为发光体的发蓝光的氢键有机框架（HOF-TTA ）与三聚氰胺泡沫（MF）结合，产生了柔性和弹性的HOF-TTA@MF（ 1和2）作为压力听觉双峰传感器。在发光压力传感过程中，1具有优异的最大灵敏度（132.02 kPa ^-1）、较低的最低检测限（0.0 1333 Pa）、快速响应时间（20 ms）、高精度和良好的可回收性。2作为发光听觉传感器，在 255−1453 Hz 处对 520 Hz 声音表现出最高响应。在感知520 Hz声音的过程中，2具有高灵敏度（1 648 441.3 cps Pa ^-1 cm ^-2）、低检测限（0.36 dB）和在11.47−91.77 dB范围内的超快响应时间（10 ms）。通过有限元模拟详细分析了压力和听觉的传感机制。此外，1和2作为人机交互双模态传感器，可以识别“健康”、“电话”、“同济”九种不同的物体和文字信息，准确率高，鲁棒性强。这项工作提供了一种基于 HOF 的发光压力-听觉双模态传感器的简便制造方法，并赋予它们新的识别功能和尺寸。

更新日期：2023-06-16

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