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나노입자 연구단
나노입자 연구단
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Human eye-inspired soft optoelectronic device using high-density MoS2-graphene curved image sensor array

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Title
Human eye-inspired soft optoelectronic device using high-density MoS2-graphene curved image sensor array
Author(s)
Changsoon Choi; Moon Kee Choi; Siyi Liu; Min Sung Kim; Ok Kyu Park; Changkyun Im; Jaemin Kim; Xiaoliang Qin; Gil Ju Lee; Kyoung Won Cho; Myungbin Kim; Euhyung Joh; Jongha Lee; Donghee Son; Seung-Hae Kwon; Noo Li Jeon; Young Min Song; Nanshu Lu; Dae-Hyeong Kim
Publication Date
2017-11
Journal
NATURE COMMUNICATIONS, v.8, no.1, pp.1664 -
Publisher
NATURE PUBLISHING GROUP
Abstract
Soft bioelectronic devices provide new opportunities for next-generation implantable devices owing to their soft mechanical nature that leads to minimal tissue damages and immune responses. However, a soft form of the implantable optoelectronic device for optical sensing and retinal stimulation has not been developed yet because of the bulkiness and rigidity of conventional imaging modules and their composing materials. Here, we describe a highdensity and hemispherically curved image sensor array that leverages the atomically thin MoS2-graphene heterostructure and strain-releasing device designs. The hemispherically curved image sensor array exhibits infrared blindness and successfully acquires pixelated optical signals. We corroborate the validity of the proposed soft materials and ultrathin device designs through theoretical modeling and finite element analysis. Then, we propose the ultrathin hemispherically curved image sensor array as a promising imaging element in the soft retinal implant. The CurvIS array is applied as a human eye-inspired soft implantable optoelectronic device that can detect optical signals and apply programmed electrical stimulation to optic nerves with minimum mechanical side effects to the retina. © The Author(s) 2017
URI
http://pr.ibs.re.kr/handle/8788114/4091
DOI
10.1038/s41467-017-01824-6
ISSN
2041-1723
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
Files in This Item:
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