화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2018년 봄 (04/25 ~ 04/27, 창원컨벤션센터)
권호 24권 1호, p.649
발표분야 재료
제목 Human-eye-inspired soft optoelectronic device using MoS2-graphene curved image sensor array
초록 Soft bioelectronic devices provide new opportunities for next-generation implantable devices due in large to their minimal immune responses and tissue damages. However, a soft form of the optoelectronic device for optical sensing and retinal stimulation has not been developed yet mainly because of the rigidity and bulkiness of conventional imaging modules. In this study, we describe a human-eye-inspired soft optoelectronic device using a high-density curved image sensor (CurvIS) array that leverages the atomically thin MoS2-graphene heterostructure and strain-releasing device designs. High photoresponsivity and infrared blindness are important benefits of the MoS2-graphene-based ultrathin imager, and the CurvIS array successfully acquires pixelated optical signals. We corroborate the validity of the proposed soft materials and device designs through theoretical analysis based on mechanics and optics. The ultrathin CurvIS array is applied to the 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.
저자 최창순1, 김대형2
소속 1서울대, 2Institute of Basic Science (IBS)
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