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Flexible artificial synesthesia electronics with sound-synchronized electroluminescence

Cited 19 time in Web of Science Cited 20 time in Scopus

Kim, Jong Sung; Cho, Sung Hwan; Kim, Kang Lib; Kim, Gwangmook; Lee, Seung Won; Kim, Eui Hyuk; Jeong, Beomjin; Hwang, Ihn; Han, Hyowon; Shim, Wooyoung; Lee, Tae-Woo; Park, Cheolmin

Issue Date
Elsevier BV
Nano Energy, Vol.59, pp.773-783
Visualization of human senses has been of great interest for developing an emerging interactive display that can artificially stimulate synesthesia with numerous unprecedented applications. Especially, visualization of various daily sound and music, which are much more complicated than human touch, in a form of flexible thin film devices can be a great challenge. We present flexible artificial synesthesia electronics that visualize continuous and complicated sounds. The electronic device is made of a thin composite film of a piezoelectric polymer for sound generation and inorganic electroluminescence (EL) microparticles for direct visualization of input sound signals. Field-induced EL of the microparticles in the device depends upon the source sound wave, making their EL synchronized with sound arising from the piezoelectric actuation. The flexible artificial synesthesia devices with sound-synchronized EL (FASSEL) showed extreme mechanical tolerance that can be repeatedly folded and crumpled with visible sound, allowing a variety of unexplored applications including synchronous sound-lightings and wearable, on-body sound-vision systems to facilitate emotional interaction of human being with sound in a human-friendly form.
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