A printed proximity-sensing surface based on organic pyroelectric sensors and organic thin-film transistor electronics

Fattori, Marco; Cardarelli, S.; Fijn, Joost; Harpe, Pieter; Charbonneau, M.; Locatelli, Denis; Lombard, Stéphanie; Laugier, Christelle; Tournon, Laurent; Jacob, S.; Romanjek, K.; Coppard, R.; Gold, Herbert; Adler, Manfred; Zirkl, Martin; Groten, Jonas; Tschepp, Andreas; Lamprecht, Bernhard; Postl, Markus; Stadlober, Barbara; Socratous, Josephine; Cantatore, Eugenio

doi:10.1038/s41928-022-00762-6

Cited by 25 publications

(22 citation statements)

References 33 publications

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“…The detecting range of the e-whisker is nearly 25 cm, which is comparable to the range of proximity sensing in the currently reported sensors (Fig. 2c, Supplementary Table S1) 3,7,[26][27][28][29][30][31][32][33] . For testing the sensitivity of the sensors, we acquired the voltage signals at random temperature variety (Fig.…”

Section: Resultssupporting

confidence: 73%

Ultrahigh performance and multifunctional flexible biomimetic electronic whiskers for intelligent perception

Chen

Zhao

et al. 2023

Preprint

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The humanoid robots that can operate in complex and extreme environments are capable of detecting and discerning various stimuli by the sensors mimicking the human skin sensory system. Herein, we report a flexible biomimetic electronic whisker that greatly expands the diversity of perception in an extremely simple design, including proximity, temperature, pressure, wind, and vibration, which can also discriminate these perception signals. Notably, the biomimetic whisker fabricated using scalable processes possesses a wide-range measurements of bimodal temperature (-189 oC to 150 oC for object, -85 oC to 60 oC for surroundings) and wind speed (1 m s-1 to 20.4 m s-1), with bending stability (250000 cycles), the response of slight pressure (0.07 mN), and the sense of vibration (1000 Hz). In the frame of machine learning, we finally exploit the sensor to demonstrate the outstanding potential in robotics and human-machine interfaces.

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Section: Resultssupporting

confidence: 73%

Ultrahigh performance and multifunctional flexible biomimetic electronic whiskers for intelligent perception

Chen

Zhao

et al. 2023

Preprint

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Section: Fet-based Tactile Sensor For Artificial Sensory Nervous Systemmentioning

confidence: 99%

“…The 5 Â 10 sensor matrix consists of a PVDF-TrFE copolymer-based printed film pyroelectric sensor and printed organic thin-film transistors. 249 Each pixel includes an infrared sensor, active front-end electronics, and addressing modules that enable infrared proximity detection of humans. Among them, PVDF-TrFE copolymer has a higher pyroelectric coefficient, fast response time and solution processability, which is an ideal material for preparing low-cost, large-area, and long-infrared sensor arrays.…”

Section: Fet-based Tactile Sensor For Human-interactive Systemsmentioning

confidence: 99%

“…Inspired by infrared sensing, as shown in the top panel of Figure 24C, Fattori et al report a flexible large‐area proximity sensing surface fabricated using printed organic materials. The 5 × 10 sensor matrix consists of a PVDF‐TrFE copolymer‐based printed film pyroelectric sensor and printed organic thin‐film transistors 249 . Each pixel includes an infrared sensor, active front‐end electronics, and addressing modules that enable infrared proximity detection of humans.…”

Section: Latest Advanced Applications For Fet Tactile Sensor Arraysmentioning

confidence: 99%

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Field effect transistor‐based tactile sensors: From sensor configurations to advanced applications

Wang

Zhang

et al. 2022

InfoMat

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The past several decades have witnessed great progress in high-performance field effect transistors (FET) as one of the most important electronic components. At the same time, due to their intrinsic advantages, such as multiparameter accessibility, excellent electric signal amplification function, and ease of large-scale manufacturing, FET as tactile sensors for flexible wearable devices, artificial intelligence, Internet of Things, and other fields to perceive external stimuli has also attracted great attention and become a significant field of general concern. More importantly, FET has a unique threeterminal structure, which enables its different components to detect external mechanics through different sensing mechanisms. On one hand, it provides an important platform to shed deep insights into the underlying mechanisms of the tactile sensors. On the other hand, these properties could in turn endow excellent components for the construction of tactile matrix sensor arrays with high quality. With special emphasis on the configuration of FETs, this review classified and summarized structure-optimized FET tactile sensors with gate, dielectric layer, semiconductor layer, and source/drain electrodes as sensing active components, respectively. The working principles and the state-of-theart protocols in terms of high-performance tactile sensors are detail discussed and highlighted, the innovative pixel distribution and integration analysis of the transistor sensor matrix array concerning flexible electronics are also introduced. We hope that the introduction of this review can provide some Jian Wang, Shuyan Xu, Congcong Zhang, and Ailing Yin contributed equally to this study.

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“…Pyroelectric materials, as an important family of polar substances, have been extensively used as essential ingredients for integrating smart electronic devices based on their inherent pyroelectric effect that can convert temperature changes into electrical signals. − In principle, variation of external thermal energy radiation will generate electric currents in pyroelectrics, of which the intensities are dependent on the change rate of temperature. ,, This pyroelectricity-directed behavior exhibits unique advantages of fast response, high sensitivity, and low power consumption. − Nevertheless, the realization of highly efficient detection performance requires exceptional figures of merit (FOMs) in pyroelectric materials, ,− including both output voltage efficiency F v = p e /(ε 0 ε r c v ) and detection capacity F D = p e /[ c v (ε 0 ε r tanδ) 1/2 ], where ε r , c v , and tanδ denote the relative dielectric constant, specific heat, and dielectric loss, respectively. The parameter of F v is crucial to the detection responsivity of small-size (point) detectors, and F D often determines the sensitivity and signal-to-noise limit.…”

Section: Introductionmentioning

confidence: 99%

Giant Near-Room-Temperature Pyroelectric Figures-of-Merit Originating from Unusual Dielectric Bistability of Two-Dimensional Perovskite Ferroelectric Crystals

Tang

Han

et al. 2022

Chem. Mater.

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Pyroelectric materials with the capability of converting temperature changes into electrical signals have been widely used as essential elements for assembling integrated smart electronic detectors. Regarding the conversion efficiency of the voltage output, however, it is significant but quite challenging to exploit new candidates with large pyroelectricity figures-of-merit (FOMs) at room temperature. Herein, we have acquired giant near-room-temperature pyroelectric FOMs in the two-dimensional (2D) perovskite-type improper ferroelectric crystals of (BA)2(EA)2Pb3I10 (1, where BA = n-butylammonium and EA = ethylammonium), for which the room-temperature voltage FOM (F v = 1.06 × 10–2 cm2/μC) is about 10 times as large as that of the state-of-the-art inorganic oxides (often ∼0.1 × 10–2 cm2/μC), while the peak values near the T c are almost 2–3 orders of magnitude higher than those of the typical oxide counterparts. Such ultrahigh FOMs are mainly due to their large pyroelectric coefficients and unusual bistability of dielectric behavior, that is, an extremely small-amplitude dielectric variation caused by dipole reorientations during the ferroelectric-to-antiferroelectric phase transition at ∼315 K. This achievement of ultrahigh pyroelectric FOMs in improper ferroelectrics is in sharp contrast to the proper counterparts. Moreover, the low-cost and facile integration of crystal-based devices favors their great potential as smart pyroelectric detectors. As far as we know, the findings of giant pyroelectricity FOMs are unprecedented in 2D hybrid perovskites, which probably recall their broader prospects toward high-performance electronic device application.

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A printed proximity-sensing surface based on organic pyroelectric sensors and organic thin-film transistor electronics

Cited by 25 publications

References 33 publications

Ultrahigh performance and multifunctional flexible biomimetic electronic whiskers for intelligent perception

Ultrahigh performance and multifunctional flexible biomimetic electronic whiskers for intelligent perception

Field effect transistor‐based tactile sensors: From sensor configurations to advanced applications

Giant Near-Room-Temperature Pyroelectric Figures-of-Merit Originating from Unusual Dielectric Bistability of Two-Dimensional Perovskite Ferroelectric Crystals

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