首页|Self-powered finger motion-sensing structural color display enabled by block copolymer photonic crystal

Self-powered finger motion-sensing structural color display enabled by block copolymer photonic crystal

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  • NSTL
  • Elsevier
Self-powered user-interactive displays that facilitate the visualization of human information acquired by sensors are of great interest in emerging human-machine interface technology with efficient energy consumption. Herein, a self-powered motion-sensing display capable of simultaneously detecting and visualizing finger motions is presented. Our device is based on a one-dimensional photonic crystal of an interpenetrated hydrogel network block copolymer (IHN-BCP) consisting of alternating water-absorbable and non-absorbable lamellae. Triboelectrification is achieved as a function of relative humidity from 30% to 80%. The direct visualization of the humidity is also achieved through the humidity-dependent structural color of the photonic crystal in the full visible range. Furthermore, the humidity-responsive triboelectrification and structural color of our IHN-BCP photonic crystal facilitates the development of a self-powered finger motion-sensing display where diverse gestures of a finger with natural humidity are quantitatively recognized, such as vertical and sliding motion of the finger with simultaneous visualization of the motions in both contact and non-contact modes.

Human-machine interfacesFinger motion-sensing displayBlock copolymer photonic crystalHumidity-dependent structural color displayTriboelectric motion sensingSelf-powered operationTRIBOELECTRIC NANOGENERATORNONCONTACT MODETRANSPARENTSENSORENERGY

Kim, Sohee、Jeon, Seungbae、Ryu, Du Yeol、Koh, Won-Gun、Park, Cheolmin、Kim, Taebin、Lee, Jae Won、Park, Chanho、Lee, Kyuho、Lee, Chang Eun、Lee, Seokyeong、Kim, Yeonji

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Yonsei Univ

2022

10.1016/j.nanoen.2021.106688

Nano Energy

Nano Energy

EISCI
ISSN：2211-2855
年,卷(期)：2022.92
  • 16
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