Meniscus‐Guided Micro‐Printing of Prussian Blue for Smart Electrochromic Display
Abstract Using energy‐saving electrochromic (EC) displays in smart devices for augmented reality makes cost‐effective, easily producible, and efficiently operable devices for specific applications possible. Prussian blue (PB) is a metal‐organic coordinated compound with unique EC properties that lim...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-01-01
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| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.202205588 |
| _version_ | 1797943405654835200 |
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| author | Je Hyeong Kim Seobin Park Jinhyuck Ahn Jaeyeon Pyo Hayeol Kim Namhun Kim Im Doo Jung Seung Kwon Seol |
| author_facet | Je Hyeong Kim Seobin Park Jinhyuck Ahn Jaeyeon Pyo Hayeol Kim Namhun Kim Im Doo Jung Seung Kwon Seol |
| author_sort | Je Hyeong Kim |
| collection | DOAJ |
| description | Abstract Using energy‐saving electrochromic (EC) displays in smart devices for augmented reality makes cost‐effective, easily producible, and efficiently operable devices for specific applications possible. Prussian blue (PB) is a metal‐organic coordinated compound with unique EC properties that limit EC display applications due to the difficulty in PB micro‐patterning. This work presents a novel micro‐printing strategy for PB patterns using localized crystallization of FeFe(CN)6 on a substrate confined by the acidic‐ferric‐ferricyanide ink meniscus, followed by thermal reduction at 120 °C, thereby forming PB. Uniform PB patterns can be obtained by manipulating printing parameters, such as the concentration of FeCl3·K3Fe(CN)6, printing speed, and pipette inner diameter. Using a 0.1 M KCl (pH 4) electrolyte, the printed PB pattern is consistently and reversibly converted to Prussian white (CV potential range: −0.2–0.5 V) with 200 CV cycles. The PB‐based EC display with a navigation function integrated into a smart contact lens is able to display directions to a destination to a user by receiving GPS coordinates in real time. This facile method for forming PB micro‐patterns could be used for advanced EC displays and various functional devices. |
| first_indexed | 2024-04-10T20:23:39Z |
| format | Article |
| id | doaj.art-e21d0a731d75498098c4e201a6a8c177 |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-04-10T20:23:39Z |
| publishDate | 2023-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-e21d0a731d75498098c4e201a6a8c1772023-01-25T13:47:49ZengWileyAdvanced Science2198-38442023-01-01103n/an/a10.1002/advs.202205588Meniscus‐Guided Micro‐Printing of Prussian Blue for Smart Electrochromic DisplayJe Hyeong Kim0Seobin Park1Jinhyuck Ahn2Jaeyeon Pyo3Hayeol Kim4Namhun Kim5Im Doo Jung6Seung Kwon Seol7Smart 3D Printing Research Team Korea Electrotechnology Research Institute (KERI) Changwon‐si Gyeongsangnam‐do 51543 Republic of KoreaDepartment of Mechanical Engineering Ulsan National Institute of Science and Technology (UNIST) Ulju‐gun Ulsangwang‐yeogsi 44919 Republic of KoreaSmart 3D Printing Research Team Korea Electrotechnology Research Institute (KERI) Changwon‐si Gyeongsangnam‐do 51543 Republic of KoreaSmart 3D Printing Research Team Korea Electrotechnology Research Institute (KERI) Changwon‐si Gyeongsangnam‐do 51543 Republic of KoreaDepartment of Mechanical Engineering Ulsan National Institute of Science and Technology (UNIST) Ulju‐gun Ulsangwang‐yeogsi 44919 Republic of KoreaDepartment of Mechanical Engineering Ulsan National Institute of Science and Technology (UNIST) Ulju‐gun Ulsangwang‐yeogsi 44919 Republic of KoreaDepartment of Mechanical Engineering Ulsan National Institute of Science and Technology (UNIST) Ulju‐gun Ulsangwang‐yeogsi 44919 Republic of KoreaSmart 3D Printing Research Team Korea Electrotechnology Research Institute (KERI) Changwon‐si Gyeongsangnam‐do 51543 Republic of KoreaAbstract Using energy‐saving electrochromic (EC) displays in smart devices for augmented reality makes cost‐effective, easily producible, and efficiently operable devices for specific applications possible. Prussian blue (PB) is a metal‐organic coordinated compound with unique EC properties that limit EC display applications due to the difficulty in PB micro‐patterning. This work presents a novel micro‐printing strategy for PB patterns using localized crystallization of FeFe(CN)6 on a substrate confined by the acidic‐ferric‐ferricyanide ink meniscus, followed by thermal reduction at 120 °C, thereby forming PB. Uniform PB patterns can be obtained by manipulating printing parameters, such as the concentration of FeCl3·K3Fe(CN)6, printing speed, and pipette inner diameter. Using a 0.1 M KCl (pH 4) electrolyte, the printed PB pattern is consistently and reversibly converted to Prussian white (CV potential range: −0.2–0.5 V) with 200 CV cycles. The PB‐based EC display with a navigation function integrated into a smart contact lens is able to display directions to a destination to a user by receiving GPS coordinates in real time. This facile method for forming PB micro‐patterns could be used for advanced EC displays and various functional devices.https://doi.org/10.1002/advs.202205588augmented reality (AR)electrochromic displaymeniscus‐guided printingmicro‐patterningPrussian blue |
| spellingShingle | Je Hyeong Kim Seobin Park Jinhyuck Ahn Jaeyeon Pyo Hayeol Kim Namhun Kim Im Doo Jung Seung Kwon Seol Meniscus‐Guided Micro‐Printing of Prussian Blue for Smart Electrochromic Display Advanced Science augmented reality (AR) electrochromic display meniscus‐guided printing micro‐patterning Prussian blue |
| title | Meniscus‐Guided Micro‐Printing of Prussian Blue for Smart Electrochromic Display |
| title_full | Meniscus‐Guided Micro‐Printing of Prussian Blue for Smart Electrochromic Display |
| title_fullStr | Meniscus‐Guided Micro‐Printing of Prussian Blue for Smart Electrochromic Display |
| title_full_unstemmed | Meniscus‐Guided Micro‐Printing of Prussian Blue for Smart Electrochromic Display |
| title_short | Meniscus‐Guided Micro‐Printing of Prussian Blue for Smart Electrochromic Display |
| title_sort | meniscus guided micro printing of prussian blue for smart electrochromic display |
| topic | augmented reality (AR) electrochromic display meniscus‐guided printing micro‐patterning Prussian blue |
| url | https://doi.org/10.1002/advs.202205588 |
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