KR20170010697A - 점착 기능을 구비한 유연 전자소자 및 그의 제조방법 - Google Patents
점착 기능을 구비한 유연 전자소자 및 그의 제조방법 Download PDFInfo
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- KR20170010697A KR20170010697A KR1020150102689A KR20150102689A KR20170010697A KR 20170010697 A KR20170010697 A KR 20170010697A KR 1020150102689 A KR1020150102689 A KR 1020150102689A KR 20150102689 A KR20150102689 A KR 20150102689A KR 20170010697 A KR20170010697 A KR 20170010697A
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Abstract
Description
도 2는 실시예 1에 따라 실리콘 웨이퍼 상에 제조된 점착 기능을 구비한 유연 전자소자의 개략도 및 측단면도(a) 및 실리콘 웨이퍼에서 분리한 점착 기능을 구비한 유연 전자소자의 사진(b)을 나타낸 것이다.
도3은 스카치 테이프 표면에 폴리이미드의 코팅 전 후 거칠기를 비교한 AFM(atomic force microscope) 이미지이다.
도 4는 실시예 1에 의해 제조된 그래핀 전계효과 트랜지스터를 지폐, 실리콘 웨이퍼, 종이에 부착한 이미지 및 각각의 전기적 성능을 분석하여 나타낸 그래프이다.
도 5는 실시예 1 내지 3에 의해 제조된 게이트절연층의 누설전류밀도(current density)를 측정하여 나타낸 그래프이다.
도 6은 실시예 1 내지 3에 의해 제조된 그래핀 전계효과 트랜지스터의 산소 플라즈마 압력에 따른 AlOX의 원자비를 측정하여 나타낸 그래프 및 및 TEM(transmission electron microscope) 이미지이다.
도 7은 실시예 1에 따라 제조된 게이트절연층/게이트 패턴/폴리이미드/접착테이프가 오피스 페이퍼(office paper)에 부착된 게이트절연층/게이트 패턴/폴리이미드/접착테이프/오피스 페이퍼(a)의 측단면 및 비교예 1에 따라 제조된 게이트 절연층/게이트 패턴/폴리이미드(b)의 측단면을 나타낸 것이다.
도 8은 도 7의 두 샘플에 대한 구부림 곡률반경(bending radius)에 따른 표면 변형률(surface strain)을 측정하여 나타낸 것이다.
Claims (20)
- 유연 필름, 및 상기 유연 필름의 일측면 상에 형성된 점착층을 포함하는 점착테이프; 및
상기 점착테이프의 상기 일측면의 반대측 타측면 상에 형성된 전자소자;를
포함하는 점착 기능을 구비한 유연 전자소자. - 제1항에 있어서,
상기 전자소자가 상기 유연 필름을 기판으로 포함하는 것을 특징으로 하는 점착 기능을 구비한 유연 전자소자. - 제1항에 있어서,
상기 유연 전자소자가 전계효과 트랜지스터, 태양전지, 유기발광다이오드, 촉각센서, 전파 식별 태그, 전자종이, 및 바이오 센서 중에서 선택된 1종 이상인 것을 특징으로 하는 점착 기능을 구비한 유연 전자소자. - 제3항에 있어서,
상기 점착 기능을 구비한 유연 전자소자가 전계효과 트랜지스터이고,
상기 전계효과 트랜지스터가
유연 필름, 및 상기 유연 필름의 일측면 상에 형성된 점착층을 포함하는 점착테이프;
상기 점착테이프의 상기 일측면의 반대측 타측면 상에 위치하는 게이트 전극;
상기 게이트 전극 상에 위치하는 게이트 절연층;
상기 게이트 절연층 상에 위치하고, 서로 이격되어 배치되는 소스 전극 및 드레인 전극; 및
상기 게이트 절연층 상에 위치하고 상기 소스전극 및 드레인 전극을 전기적으로 연결하는 활성층;을 포함하는 것을 특징으로 하는 점착 기능을 구비한 유연 전자소자. - 제4항에 있어서,
상기 점착테이프는 상기 타측면 상에 상기 타측면의 표면을 평탄화하는 표면개질층을 추가로 포함하는 것을 특징으로 하는 점착 기능을 구비한 유연 전자소자. - 제5항에 있어서,
상기 표면개질층이 폴리이미드(polyimide), 폴리아크릴레이트, 폴리우레탄, 폴리에틸렌, 폴리비닐페놀, 및 폴리비닐알콜 중에서 선택된 1종 이상을 포함하는 것을 특징으로 하는 점착 기능을 구비한 유연 전자소자. - 제4항에 있어서,
상기 점착테이프의 영탄성률(Young's modulus)이 상기 표면 개질층의 영탄성률(Young's modulus) 보다 작은 것을 특징으로 하는 점착 기능을 구비한 유연 전자소자. - 제5항에 있어서,
상기 표면 개질층은 제곱평균제곱근 거칠기(Root-mean-square roughness)가 0.1 내지 1 nm인 것을 특징으로 하는 점착 기능을 구비한 유연 전자소자. - 제4항에 있어서,
상기 게이트 절연층은 두께가 1 내지 10 nm인 것을 특징으로 하는 점착 기능을 구비한 전자소자. - 제4항에 있어서,
상기 활성층이 그래핀, PQT-12(poly(3,3'''-didodecyl quarterthiophene)), P3HT(poly(3-hexyl thiophene)), P3BT(poly(3-butyl thiophene)), P3OT(poly(3-octyl thiophene)), PPy(polypyrrole), PANI(polyaniline), PDPP(polydiketopyrrolopyrrole), PIID(polyisoindigo), PPDI(poly(perylene diimide)), PNDI(poly(naphthalene diimide)), PEO(poly(ethylene oxide)), PCL(poly(-caprolactone)), PMMA(poly(methyl methacrylate)), PS(polystyrene), PVP (poly(vinyl pyrrolidone)), 펜타센, 루브린, 구리 프탈로시아닌 및 풀러렌 중에서 선택된 1종 이상을 포함하는 것을 특징으로 하는 점착 기능을 구비한 유연 전자소자. - (a) 유연 필름, 및 상기 유연 필름의 일측면 상에 형성된 점착층을 포함하는 점착테이프를 준비하는 단계; 및
(b) 상기 점착테이프의 상기 일측면의 반대측 타측면 상에 전자소자를 형성하는 단계;를
포함하는 점착 기능을 구비한 유연 전자소자의 제조방법. - 제11항에 있어서,
상기 유연 전자소자의 제조방법이 단계 (a) 후에 상기 점착테이프의 상기 일측면의 반대측 타측면 상에 표면개질층을 코팅하는 단계를 추가로 포함하는 것을 특징으로 하는 점착 기능을 구비한 유연 전자소자의 제조방법. - 제11항에 있어서,
단계 (b)의 전자소자가 전계효과 트랜지스터, 태양전지, 유기발광다이오드, 촉각센서, 전파 식별 태그, 전자종이, 및 바이오 센서 중에서 선택된 1종 이상인 것을 특징으로 하는 점착 기능을 구비한 유연 전자소자의 제조방법. - 제13항에 있어서,
단계 (b)의 전자소자가 전계효과 트랜지스터이고,
단계 (b)가,
(b-1) 상기 점착테이프의 상기 일측면의 반대측 타측면 상에 게이트 전극을 형성하는 단계;
(b-2) 상기 게이트 전극상에 게이트 절연층을 형성하는 단계;
(b-3) 상기 게이트 절연층 상에 소스 전극 및 드레인 전극을 형성하는 단계; 및
(b-4) 상기 게이트 절연층 상에, 상기 소스 전극 및 드레인 전극을 전기적으로 연결하는 활성층을 형성하는 단계;를
포함하는 점착 기능을 구비한 유연 전자소자의 제조방법. - 제14항에 있어서,
단계 (b-2)가 UV 오존처리, 산소 분위기 열처리, 및 산소 플라즈마 처리 중에서 선택된 어느 하나의 방법으로 수행되는 것을 특징으로 하는 점착 기능을 구비한 유연 전자소자의 제조방법. - 제15항에 있어서,
단계 (b-2)가 산소 플라즈마 처리에 의해 수행되는 것을 특징으로 하는 점착 기능을 구비한 유연 전자소자의 제조방법. - 제16항에 있어서,
상기 산소 플라즈마 처리가 10 내지 300W의 RF 전력 조건에서 수행되는 것을 특징으로 하는 점착 기능을 구비한 유연 전자소자의 제조방법. - 제16항에 있어서,
상기 산소 플라즈마 처리가 1 내지 1000 mTorr의 압력 조건에서 수행되는 것을 특징으로 하는 점착 기능을 구비한 유연 전자소자의 제조방법. - 제14항에 있어서,
상기 활성층이 그래핀층이고,
상기 그래핀층이 물리적 또는 화학적 박리에 의해 제조된 그래핀, SiC에서 성장시켜 제조된 그래핀, 및 화학기상 증착법에 의해 제조된 그래핀 중에서 선택된 어느 하나인 것을 특징으로 하는 점착 기능을 구비한 유연 전자소자의 제조방법. - 제14항에 있어서,
단계 (b-4)가 건식 전사법에 따라 수행되는 것을 특징으로 하는 점착 기능을 구비한 유연 전자소자의 제조방법.
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