Highly Stretchable Sound-in-Display Electronics Based on Strain-Insensitive Metallic Nanonetworks

被引:30
作者
Cho, Seungse [1 ]
Kang, Dong-hee [1 ]
Lee, Hyejin [1 ]
Kim, Minsoo P. [1 ]
Kang, Saewon [1 ]
Shanker, Ravi [1 ]
Ko, Hyunhyub [1 ]
机构
[1] Ulsan Natl Inst Sci & Technol UNIST, Sch Energy & Chem Engn, Ulsan Metropolitan City 689798, South Korea
基金
新加坡国家研究基金会;
关键词
electroluminescent loudspeakers; sound‐ in‐ display electronics; strain‐ insensitive silver nanowire electrodes; stretchability; TRANSPARENT; LIGHT; SKIN; ELECTROLUMINESCENCE; PRESSURE; DEVICES; HEATER; SENSOR;
D O I
10.1002/advs.202001647
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The growing importance of human-machine interfaces and the rapid expansion of the internet of things (IoT) have inspired the integration of displays with sound generation systems to afford stretchable sound-in-display devices and thus establish human-to-machine connections via auditory system visualization. Herein, the synchronized generation of sound and color is demonstrated for a stretchable sound-in-display device with electrodes of strain-insensitive silver nanowires (AgNWs) and emissive layers of field-induced inorganic electroluminescent (EL) phosphors. In this device, EL phosphors embedded in a dielectric elastomer actuator (DEA) emit light under alternating-current bias, while audible sound waves are simultaneously generated via DEA actuation along with input sound signals. The electroluminescence and sound-generation performances of the fabricated device are highly robust and reliable, being insensitive to stretch-release cycling because of the presence of the AgNW stretchable electrodes. The presented principle of integrating light emission and acoustic systems in a single stretchable device can be further expanded to realize sound-in-display electronics for IoT and human-machine interface applications.
引用
收藏
页数:10
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