The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.
Skin-Inspired Hierarchical Polymer Architectures with Gradient Stiffness for Spacer-Free, Ultrathin, and Highly Sensitive Triboelectric Sensors
Abstract
The gradient stiffness between stiff epidermis and soft dermis with interlocked microridge structures in human skin induces effective stress transmission to underlying mechanoreceptors for enhanced tactile sensing. Inspired by skin structure and function, we fabricate hierarchical nanoporous and interlocked microridge structured polymers with gradient stiffness for spacer-free, ultrathin, and highly sensitive triboelectric sensors (TESs). The skin-inspired hierarchical polymers with gradient elastic modulus enhance the compressibility and contact areal differences due to effective transmission of the external stress from stiff to soft layers, resulting in highly sensitive TESs capable of detecting human vital signs and voice. In addition, the microridges in the interlocked polymers provide an effective variation of gap distance between interlocked layers without using the bulk spacer and thus facilitate the ultrathin and flexible design of TESs that could be worn on the body and detect a variety of pressing, bending, and twisting motions even in humid and underwater environments. Our TESs exhibit the highest power density (46.7 μW/cm 2 ), pressure (0.55 V/kPa), and bending (∼0.1 V/°) sensitivities ever reported on flexible TESs. The proposed design of hierarchical polymer architectures for the flexible and wearable TESs can find numerous applications in next-generation wearable electronics.
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Cites
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Highly sensitive flexible pressure sensors with microstructured rubber dielectric layers
Mannsfeld, S. C. B., Tee, B. C.-K., Stoltenberg, R. M., Chen, C. V. H.-H., Barman, S., Muir, B. V. O., Sokolov, A. N., Reese, C., & Bao, Z. (2010) · Nature Materials · doi:10.1038/nmat2834 · Cited by 3,291
Progress in triboelectric nanogenerators as a new energy technology and self-powered sensors
Wang, Z. L., Chen, J., & Lin, L. (2015) · Energy & Environmental Science · doi:10.1039/c5ee01532d · Cited by 2,174
Nanowire active-matrix circuitry for low-voltage macroscale artificial skin
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Self-citationSoft Microfluidic Assemblies of Sensors, Circuits, and Radios for the Skin
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User-interactive electronic skin for instantaneous pressure visualization
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Cited by
Choi, D., Lee, Y., Lin, Z.-H., Cho, S., Kim, M., Ao, C. K., Soh, S., Sohn, C., Jeong, C. K., Lee, J., et al. (2023) · ACS Nano · doi:10.1021/acsnano.2c12458 · Cited by 656
Self-citationPyo, S., Lee, J., Bae, K., Sim, S., & Kim, J. (2021) · Advanced Materials · doi:10.1002/adma.202005902 · Cited by 631
Wen, F., Zhang, Z., He, T., & Lee, C. (2021) · Nature Communications · doi:10.1038/s41467-021-25637-w · Cited by 494
Material‐Based Approaches for the Fabrication of Stretchable Electronics
Kim, D. C., Shim, H. J., Lee, W., Koo, J. H., & Kim, D. (2020) · Advanced Materials · doi:10.1002/adma.201902743 · Cited by 438
Hierarchically patterned self-powered sensors for multifunctional tactile sensing
Wang, Y., Wu, H., Xu, L., Zhang, H., Yang, Y., & Wang, Z. L. (2020) · Science Advances · doi:10.1126/sciadv.abb9083 · Cited by 425
Metadata
- Authors
- Ha, M., Lim, S., Cho, S., Lee, Y., Na, S., Baig, C., & Ko, H.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2018-04-05
- Volume
- 12
- Issue
- 4
- Pages
- 3964-3974
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2796368594
- Cited by
- 314
- References
- 8
- FWCI
- 11.14
- Type
- journal article
- Language
- en
- Open access
- closed
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- Ha, M., Lim, S., Cho, S., Lee, Y., Na, S., Baig, C., & Ko, H. (2018). Skin-Inspired Hierarchical Polymer Architectures with Gradient Stiffness for Spacer-Free, Ultrathin, and Highly Sensitive Triboelectric Sensors. ACS Nano. https://doi.org/10.1021/acsnano.8b01557
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