Foldable and washable textile-based OLEDs with a multi-functional near-room-temperature encapsulation layer for smart e-textiles
| Autor: | Ha-Eun Cho, Kyung Cheol Choi, J.Y. Lee, Eun Gyo Jeong, Seungyeop Choi, Jeong Hyun Kwon, Yong Cheon Park, Sung Gap Im, Yunha Na, Soyeong Jeong, Hye Rin Shim, Kisuk Kang, Yongmin Jeon |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Textile E-textiles TK7800-8360 business.industry Wearable computer Nanotechnology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Encapsulation (networking) Residual stress OLED TA401-492 General Materials Science Electrical and Electronic Engineering Electronics 0210 nano-technology business Layer (electronics) Materials of engineering and construction. Mechanics of materials Wearable technology |
| Zdroj: | npj Flexible Electronics, Vol 5, Iss 1, Pp 1-9 (2021) |
| ISSN: | 2397-4621 |
| Popis: | Wearable electronic devices are being developed because of their wide potential applications and user convenience. Among them, wearable organic light emitting diodes (OLEDs) play an important role in visualizing the data signal processed in wearable electronics to humans. In this study, textile-based OLEDs were fabricated and their practical utility was demonstrated. The textile-based OLEDs exhibited a stable operating lifetime under ambient conditions, enough mechanical durability to endure the deformation by the movement of humans, and washability for maintaining its optoelectronic properties even in water condition such as rain, sweat, or washing. In this study, the main technology used to realize this textile-based OLED was multi-functional near-room-temperature encapsulation. The outstanding impermeability of TiO2 film deposited at near-room-temperature was demonstrated. The internal residual stress in the encapsulation layer was controlled, and the device was capped by highly cross-linked hydrophobic polymer film, providing a highly impermeable, mechanically flexible, and waterproof encapsulation. |
| Databáze: | OpenAIRE |
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