ETRI-Knowledge Sharing Plaform

ENGLISH

성과물

논문 검색
구분 SCI
연도 ~ 키워드

상세정보

학술지 Freely Deformable Liquid Metal Grids as Stretchable and Transparent Electrodes
Cited 9 time in scopus Download 11 time Share share facebook twitter linkedin kakaostory
저자
문유경, 구재본, 박래만, 오지영, 나복순, 이상석, 안성덕, 박찬우
발행일
201712
출처
IEEE Transactions on Electron Devices, v.64 no.12, pp.5157-5162
ISSN
0018-9383
출판사
IEEE
DOI
https://dx.doi.org/10.1109/TED.2017.2758784
협약과제
17HB2100, Skintronics를 위한 감각 입출력 패널 핵심 기술 개발, 이정익
초록
A new structure of stretchable and transparent metal-grid electrodes is described, where a liquid metal alloy, eutectic gallium-indium (EGaIn) is employed as a stretchable conducting material. By a 'roll-painting and lift-off' technique based on photolithography, stretchable EGaIn-grids with the linewidth of 20 μm and the line pitch of 400-1000 μm are produced, providing the transmittance of 75%-88% with the sheet resistance less than 2.3 廓 square. Powered by the freely deformable nature of the liquid phase conductor, the EGaIn-grid provides stable conductivity under highly stretched condition up to 40%, as well as high reliability against cyclic deformation. By combining the EGaIn-grid with a homogeneous and transparent poly(3,4-thylenedioxythiophene):poly(styrensulfonate) (PEDOT:PSS) layer in a hybrid manner, we can construct highly stretchable and uniformly conducting transparent electrodes. The hybrid PEDOT:PSS/EGaIn-grid electrodes can be utilized as electrodes for a stretchable inorganic electroluminescence device with a ZnS phosphor-elastomer composite as the emission layer, which maintains uniform and stable emission under highly and repeatedly stretched conditions.
키워드
Eutectic gallium-indium (EGaIn), liquid metal grid, stretchable, transparent electrode
KSP 제안 키워드
Conducting materials, Elastomer composite, High Reliability, Line pitch, Liquid metal alloy, Metal grid, ZnS phosphor, cyclic deformation, eutectic gallium-indium, highly stretchable, lift-off