Abstract
Self-healing electronic materials can substantially enhance the lifetime of a device as they can self-repair mechanical damages, thereby recovering their initial electronic performance similar to human skin. Despite the development of various self-healing electronic components such as electrodes and semiconducting carrier transport layers, self-healing electroluminescence (EL) layers suitable for deformable displays, which require both high stretchability and self-recovery function, have been rarely demonstrated. Herein, shape-deformable and self-healing EL displays (SSELDs) are presented. Light-emitting materials are fabricated by adding a certain amount of a plasticizer, Triton X-100, to elastomeric poly(urethane) containing light-emitting Cu-doped ZnS microparticles to obtain a viscoelastic composite that undergoes facile shape-deformation and recovery. A capacitive SSELD exhibits frequency-dependent field-induced light emission under alternating current (AC). Color mixing and tuning of EL is conveniently achieved by mechanically mixing two or more Cu-doped ZnS microparticles with different EL characteristics. More importantly, an SSELD self-recovers its EL within few minutes of electrical failure. Further, the AC EL device endures more than 100 cycles of failure-recovery operations. By combining with a shape-deformable ionic liquid, a novel fiber display that exhibits excellent shape-deformable and self-healing EL performance is demonstrated.
| Original language | English |
|---|---|
| Article number | 1801283 |
| Journal | Advanced Optical Materials |
| Volume | 7 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2019 Feb 5 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
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Shape-Deformable Self-Healing Electroluminescence Displays. / Cho, Sung Hwan; Lee, Seung Won; Hwang, Ihn; Kim, Jong Sung; Jeong, Beomjin; Kang, Han Sol; Kim, Eui Hyuk; Kim, Kang Lib; Park, Chanho; Park, Cheolmin.
In: Advanced Optical Materials, Vol. 7, No. 3, 1801283, 05.02.2019.Research output: Contribution to journal › Article
TY - JOUR
T1 - Shape-Deformable Self-Healing Electroluminescence Displays
AU - Cho, Sung Hwan
AU - Lee, Seung Won
AU - Hwang, Ihn
AU - Kim, Jong Sung
AU - Jeong, Beomjin
AU - Kang, Han Sol
AU - Kim, Eui Hyuk
AU - Kim, Kang Lib
AU - Park, Chanho
AU - Park, Cheolmin
PY - 2019/2/5
Y1 - 2019/2/5
N2 - Self-healing electronic materials can substantially enhance the lifetime of a device as they can self-repair mechanical damages, thereby recovering their initial electronic performance similar to human skin. Despite the development of various self-healing electronic components such as electrodes and semiconducting carrier transport layers, self-healing electroluminescence (EL) layers suitable for deformable displays, which require both high stretchability and self-recovery function, have been rarely demonstrated. Herein, shape-deformable and self-healing EL displays (SSELDs) are presented. Light-emitting materials are fabricated by adding a certain amount of a plasticizer, Triton X-100, to elastomeric poly(urethane) containing light-emitting Cu-doped ZnS microparticles to obtain a viscoelastic composite that undergoes facile shape-deformation and recovery. A capacitive SSELD exhibits frequency-dependent field-induced light emission under alternating current (AC). Color mixing and tuning of EL is conveniently achieved by mechanically mixing two or more Cu-doped ZnS microparticles with different EL characteristics. More importantly, an SSELD self-recovers its EL within few minutes of electrical failure. Further, the AC EL device endures more than 100 cycles of failure-recovery operations. By combining with a shape-deformable ionic liquid, a novel fiber display that exhibits excellent shape-deformable and self-healing EL performance is demonstrated.
AB - Self-healing electronic materials can substantially enhance the lifetime of a device as they can self-repair mechanical damages, thereby recovering their initial electronic performance similar to human skin. Despite the development of various self-healing electronic components such as electrodes and semiconducting carrier transport layers, self-healing electroluminescence (EL) layers suitable for deformable displays, which require both high stretchability and self-recovery function, have been rarely demonstrated. Herein, shape-deformable and self-healing EL displays (SSELDs) are presented. Light-emitting materials are fabricated by adding a certain amount of a plasticizer, Triton X-100, to elastomeric poly(urethane) containing light-emitting Cu-doped ZnS microparticles to obtain a viscoelastic composite that undergoes facile shape-deformation and recovery. A capacitive SSELD exhibits frequency-dependent field-induced light emission under alternating current (AC). Color mixing and tuning of EL is conveniently achieved by mechanically mixing two or more Cu-doped ZnS microparticles with different EL characteristics. More importantly, an SSELD self-recovers its EL within few minutes of electrical failure. Further, the AC EL device endures more than 100 cycles of failure-recovery operations. By combining with a shape-deformable ionic liquid, a novel fiber display that exhibits excellent shape-deformable and self-healing EL performance is demonstrated.
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U2 - 10.1002/adom.201801283
DO - 10.1002/adom.201801283
M3 - Article
VL - 7
JO - Advanced Optical Materials
JF - Advanced Optical Materials
SN - 2195-1071
IS - 3
M1 - 1801283
ER -