Gel-Based Artificial Photonic Skin to Sense a Gentle Touch by Reflection

Fan Hu, Lin Zhang, Wenzhe Liu, Xiaoxiao Guo, Lei Shi*, Xiang Yang Liu

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)


This work demonstrates that engineering a three-dimensional photonic crystal (3DPC) structure in a highly flexible gel is a potential method to achieve flexible tactile artificial photonic skin (p-skin) for future visible-light communication (VLC). We investigated the photonic output modes of 3DPC-coated gel-based pressure sensors and explored their ability to sense low pressures (<10 kPa) through reflection. Such sensors with high sensitivity, fast response, and adjustable detection range can be fabricated in arrays of dots covering large, complex/uneven surfaces and are promising in the development of stimuli-responsive soft materials for future artificial intelligence, health monitoring, and photonic communication systems.

Original languageEnglish
Pages (from-to)15195-15200
Number of pages6
JournalACS Applied Materials and Interfaces
Issue number17
Publication statusPublished - 2019


  • artificial photonic skin (p-skin)
  • gel
  • photonic crystal
  • reflection
  • tactile sensing


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