Study of charged object sensing properties via an organic nanobelt

Zhang, Xuzhao; Gao, Shiyong; Qu, Yingjie; Wang, Haiting

doi:10.1016/j.orgel.2022.106473

Cited by 4 publications

(2 citation statements)

References 39 publications

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“…The gate voltage can induce more charges at the semiconductor/dielectric interface, which facilitates carrier transport and increases the current. [42,43] When the charged insulator is close to the sensor, the chargeinduced electric field effectively modulates the carrier number at PIDTBT/air interface as shown in the finite-element simulation results in Figure 2a, resulting in the dramatic current change. As a typical example, the plastic ruler is used as a stimulus and its dynamic response is also shown in Figure 2a (right side).…”

Section: Response Mechanism For Insulator and Conductor Detectionmentioning

confidence: 99%

“…The conventional capacitive proximity sensor applies the parallel plate capacitor that mainly be used to detect metal or conductor, [33][34][35][36][37][38] and the organic semiconductor-based sensor generally applies the coplanar pair electrodes to connect the organic semiconductor that can detect the charged objects. [18,[39][40][41][42][43] Because of the unintentionally electrically charged characteristic of insulators, the organic semiconductor-based sensor offers the capability to sensitively detect the insulator, for example, hair, plastic, and paper. [18] Our recent results have shown that the perception ability toward both conductor and insulator can be realized by integrating two separate sensors, that is, preparing an organic semiconductor proximity sensor and a capacitive proximity sensor on the same poly(dimethylsiloxane) (PDMS) supporting.…”

Section: Introductionmentioning

confidence: 99%

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Handwriting Character Recognition Based on Conductor/Insulator‐Identifiable E‐Tattoo Proximity Sensors for Blinds

Liu,

Tong,

Xian

et al. 2023

Adv Funct Materials

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Easy and convenient reading for blinds is of great significance for lowering their learning, entertainment, and communication barrier, and improving their living quality. The general solution is to learn braille, far from satisfying the meet of the blinds’ daily learning and communication. Here, a new‐type conductor/insulator‐identifiable e‐tattoo proximity sensor is developed by simply depositing the circular interdigitated electrodes on organic semiconductor. The discriminable recognition toward conductors and insulators is realized only based on a single e‐tattoo device. The sensors not only enable recognition of the protruding characters like braille based on distance difference, but also enable recognition of the handwriting ink‐brush and pencil graphite characters based on the unique advantage of the sensors in distinguishing conduct and insulator. These results open a new route to realize the material category recognition, provide a user‐friendly way to help the visual impaired effectively reintegrate into society, and broaden the application field of proximity sensors.

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Section: Response Mechanism For Insulator and Conductor Detectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Handwriting Character Recognition Based on Conductor/Insulator‐Identifiable E‐Tattoo Proximity Sensors for Blinds

Liu,

Tong,

Xian

et al. 2023

Adv Funct Materials

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Organic Flexible Electronics for Innovative Applications in Electronic Skin

Liu,

Li,

Tao

et al. 2024

Adv Materials Technologies

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The emergence of cutting‐edge cross‐disciplines has motivated the rapid development of wearable technology and flexible electronics. The flexibility and tunable properties of organic materials enable organic flexible electronics to adapt to complex surface deformations and achieve sensitive detection of physiological signals. The cost‐effectiveness of organic materials in mass production offers additional possibilities for the practical and commercialization of e‐skin technology. However, how to ensure stability and long‐term reliability while maintaining a highly sensitive, flexible, and stretchable is a challenge for e‐skins. In this review, the research progress and development trend of e‐skin is systematically summarized, especially the latest breakthroughs and innovations in the frontier of organic flexible electronics, and systematically review the applications of e‐skin in sensors, physiological monitoring, and energy supply. In addition, the review further discusses the prospects and current challenges for the application of organic flexible electronics in e‐skin, which provides a one‐stop reference for the development of e‐skin.

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