High-performance microcone-array flexible piezoelectric acoustic sensor based on multicomponent lead-free perovskite rods

Xiang, Zhongyuan; Li, Lihong; Lu, Zehua; Yu, Xiang; Cao, Yawei; Tahir, Muhammad Nawaz; Yao, Zhiyu; Song, Yanlin

doi:10.1016/j.matt.2022.11.023

Cited by 23 publications

(15 citation statements)

References 38 publications

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“…In addition, the flexible sensors like most of other flexible devices have features such as low fabrication cost, small size, and light weight. [20][21][22][23] Moreover, some flexible gas sensors can be wearable. Hence, there is the need to develop cheap and wearable flexible gas sensors with high performance.…”

Section: Hooman Shokrollahimentioning

confidence: 99%

Flexible/wearable resistive gas sensors based on 2D materials

et al. 2023

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Section: Hooman Shokrollahimentioning

confidence: 99%

Flexible/wearable resistive gas sensors based on 2D materials

et al. 2023

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“…As a widespread signal in all corners of the natural environment, the acoustic signal contains a great deal of environmental information and serves as an effective carrier for information transmission. − Compared to other sensing technologies, acoustic sensing offers the advantages of non-contact measurement, easily deployable, and small data size, which is conducive to promoting the development of IoT and 5G technologies. − In addition, acoustic sensors are widely used in various fields such as military, medical, , and industrial , applications. In the electric power industry, for example, effective fault analysis can be carried out by detecting the noise of transformers. , …”

Section: Introductionmentioning

confidence: 99%

Excellent-Moisture-Resistance Fluorinated Polyimide Composite Film and Self-Powered Acoustic Sensing

Guo

Lin

et al. 2023

ACS Appl. Mater. Interfaces

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As a clean, sustainable energy source, sound can carry a wealth of information and play a huge role in the Internet of Things era. In recent years, triboelectric acoustic sensors have received increasing attention due to the advantages of self-power supply and high sensitivity. However, the triboelectric charge is susceptible to ambient humidity, which reduces the reliability of the sensor and limits the application scenarios significantly. In this paper, a highly moisture-resistant fluorinated polyimide composited with an amorphous fluoropolymer film was prepared. The charge injection performance, triboelectric performance, and moisture resistance of the composite film were investigated. In addition, we developed a self-powered, highly sensitive, and moisture-resistant porous-structure acoustic sensor based on contact electrification. The detection characteristics of the acoustic sensor are also obtained.

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“…[ 4 ] Because 430 million people worldwide have suffered varying degrees of hearing loss, in line with the World Listening Report, artificial acoustic sensors with high performance are being constructed and are expected to be functionalized as cochlear implants. [ 5 ] So far, the majority of BSs predominantly rely on the conversion of external stimuli such as force and sound to electrical signals; examples of BSs with optical signal output have been rarely proposed, especially for the luminescent pressure and auditory BSs, which are still unknown. The optical signal output from a luminescent sensor is stable, precise, and low‐loss.…”

Section: Introductionmentioning

confidence: 99%

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

Yan

2023

Advanced Materials

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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.

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High-performance microcone-array flexible piezoelectric acoustic sensor based on multicomponent lead-free perovskite rods

Cited by 23 publications

References 38 publications

Flexible/wearable resistive gas sensors based on 2D materials

Flexible/wearable resistive gas sensors based on 2D materials

Excellent-Moisture-Resistance Fluorinated Polyimide Composite Film and Self-Powered Acoustic Sensing

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

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