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Transparent flexible sensor and preparation method thereof, electronic skin and wearable device

A flexible sensor and transparent technology, used in sensors, medical science, diagnosis, etc., can solve the problems of dehydration and performance deterioration of electrode materials, and achieve the effects of strong conductivity, long service life and good flexibility.

Pending Publication Date: 2020-06-19
BEIJING INST OF NANOENERGY & NANOSYST
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  • Abstract
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Problems solved by technology

Transparent stretchable skin-like sensors have been studied, but most sensors require additional power supply, and the electrode materials will dehydrate over time leading to poor performance

Method used

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  • Transparent flexible sensor and preparation method thereof, electronic skin and wearable device
  • Transparent flexible sensor and preparation method thereof, electronic skin and wearable device
  • Transparent flexible sensor and preparation method thereof, electronic skin and wearable device

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Embodiment Construction

[0041] Current triboelectric nanogenerators are based on four common basic modes: contact-separated, sliding, independent-layer and single-electrode. At present, skin-like sensors based on triboelectric nanogenerators are also in the form of a single electrode, and the signal output mostly depends on the difference of the rubbing material. However, no one has proposed a skin-like self-powered sensor based on contact separation. Compared with the single-electrode triboelectric nanogenerator, the contact-separated triboelectric generator will not be affected by the uncertain potential generated by the friction material, which is more beneficial for sensing applications. At the same time, the film-like skin-like contact-separation triboelectric generator has the characteristics of portability, which is very suitable as a wearable energy harvesting or sensing device.

[0042] The disclosure provides a transparent flexible sensor and its preparation method, electronic skin and wea...

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Abstract

The invention discloses a transparent flexible sensor and a preparation method thereof, electronic skin and a wearable device, and the transparent flexible sensor comprises a first electrode serving as a friction layer; a second electrode layer arranged opposite to the first electrode and friction layer; a patterned flexible antifriction layer located on the second electrode layer, wherein one surface, containing the pattern, of the patterned flexible antifriction layer is in contact with the first electrode and friction layer; flexible insulating layers respectively positioned on the outer sides of the first electrode and friction layer and the second electrode layer to realize packaging; wherein a conductive ion gel film is used as a first electrode and friction layer and a second electrode layer. The transparent flexible sensor has the advantages of good flexibility, portability, self-driven sensing, long service time and high detection sensitivity, is high in applicability, can beapplied to different body parts, realizes measurement of various forces and deformations, realizes sensing of various human activities, and is wide in application range.

Description

technical field [0001] The disclosure belongs to the technical field of triboelectric sensor materials, and relates to a transparent flexible sensor, a preparation method thereof, an electronic skin and a wearable device. Background technique [0002] Flexible, stretchable, and transparent strain sensors have aroused research enthusiasm as fundamental components of wearable electronics. The flexibility and ductility of most strain sensors is attributed to their active materials (conductive parts), whose resistance can vary linearly with size. The transparency and stretchability of these flexible sensors are compromised by the color and properties of the conductive fillers. Even if a high concentration of ion-doped transparent elastic conductive hydrogels are directly used, the dehydration of the hydrogels will lead to brittleness and opacity, loss of transparency and stretchability over time. In addition, these sensors still need an additional power supply, which causes in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00
CPCA61B5/6802
Inventor 赵更锐李琳琳其他发明人请求不公开姓名
Owner BEIJING INST OF NANOENERGY & NANOSYST
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