3D touchless multiorder reflection structural color sensing display
| Autor: | Han Sol Kang, Jonghyeok Baek, Hyungsuk Lee, Cheolmin Park, Won Gun Koh, Chanho Park, Hongkyu Eoh, Sang Won Han, Dae Eun Kim, Tae Hyun Park, Dong Gap Shin, Du Yeol Ryu, June Huh, Seung Won Lee, Edwin L. Thomas |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
genetic structures Materials Science 02 engineering and technology 010402 general chemistry 01 natural sciences Interactive displays chemistry.chemical_compound Engineering mental disorders Research Articles Photonic crystal Multidisciplinary Inkwell business.industry SciAdv r-articles 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry Color mixing Ionic liquid Optoelectronics Photonics 0210 nano-technology business Structural coloration Research Article |
| Zdroj: | Science Advances |
| ISSN: | 2375-2548 |
| DOI: | 10.1126/sciadv.abb5769 |
| Popis: | A 3D touchless display is created where a human finger position is visualized in structural colors of a soft photonic crystal. The development of a lightweight, low-power, user-interactive three-dimensional (3D) touchless display in which a human stimulus can be detected and simultaneously visualized in noncontact mode is of great interest. Here, we present a user-interactive 3D touchless sensing display based on multiorder reflection structural colors (SCs) of a thin, solid-state block copolymer (BCP) photonic crystal (PC). Full-visible-range SCs are developed in a BCP PC consisting of alternating lamellae, one of which contains a chemically cross-linked, interpenetrated hydrogel network. The absorption of a nonvolatile ionic liquid into the domains of the interpenetrated network allows for further manipulation of SC by using multiple-order photonic reflections, giving rise to unprecedented visible SCs arising from reflective color mixing. Furthermore, by using a hygroscopic ionic liquid ink, a printable 3D touchless interactive display is created where 3D position of a human finger is efficiently visualized in different SCs as a function of finger-to-display distance. |
| Databáze: | OpenAIRE |
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