KR102240669B1 - 유기 전기화학 트랜지스터 소자 및 그 제조방법 - Google Patents
유기 전기화학 트랜지스터 소자 및 그 제조방법 Download PDFInfo
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- H10K10/40—Organic transistors
- H10K10/46—Field-effect transistors, e.g. organic thin-film transistors [OTFT]
- H10K10/462—Insulated gate field-effect transistors [IGFETs]
- H10K10/484—Insulated gate field-effect transistors [IGFETs] characterised by the channel regions
- H10K10/488—Insulated gate field-effect transistors [IGFETs] characterised by the channel regions the channel region comprising a layer of composite material having interpenetrating or embedded materials, e.g. a mixture of donor and acceptor moieties, that form a bulk heterojunction
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- H10K10/46—Field-effect transistors, e.g. organic thin-film transistors [OTFT]
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Abstract
Description
도 2는 본 발명의 실시예에 따른 유기 전기화학 트랜지스터 소자의 제조 방법을 나타내는 흐름도이다.
도 3은 전극 형성 단계의 일 실시예를 설명하기 위한 순서도이다.
도 4는 도데실 설페이트 금속염 산화제를 제조하는 일 실시예의 순서도이다.
도 5는 Fe(DS)3 산화제를 제조하는 방법을 구체적으로 도시한 순서도이다.
도 6은 활성층 형성 단계(S22)를 설명하기 위한 순서도이다.
도 7은 산화제 용액에 포함된 Fe(DS)3 산화제 농도에 따른 PEDOT 필름의 전기전도도 그래프이다.
도 8은 실시예 및 비교예에 따른 Poly(hydroxymethyl-EDOT) 박막 표면을 광학현미경으로 관찰한 결과이다.
도 9는 유기 전기화학 트랜지스터 소자의 동작 개념도이다.
도 10은 본 발명의 실시예에 따른 유기 전기화학 트랜지스터의 특성 측정 결과이다.
도 11은 본 발명의 실시예에 유기 전기화학 트랜지스터의 수용액 안정성 측정 결과이다.
도 12는 본 발명의 실시예에 유기 전기화학 트랜지스터의 기계적 안정성 측정 결과이다.
도 13은 본 발명의 실시예에 따른 바이오 센서의 광학 현미경 관찰 결과이다.
11: 기판
12: 전극
13: 고분자 활성층
Claims (20)
- 기판;
상기 기판 상면에 형성된 소스 전극 및 드레인 전극;
상기 기판 상면에 형성되고, 상기 소스 전극 및 드레인 전극과 전기적으로 접촉하는 Poly(hydroxymethyl-EDOT) 고분자 활성층;
을 포함하고,
상기 소스 전극 및 드레인 전극은, 도데실 설페이트 금속염을 산화제로 사용하는 기상중합법에 의해 도데실 설페이트가 도핑된 PEDOT 필름으로 형성되는 것을 특징으로 하는 유기 전기화학 트랜지스터 소자. - 제1항에 있어서,
상기 기판은 유연 기판인 것을 특징으로 하는 유기 전기화학 트랜지스터 소자. - 삭제
- 삭제
- 제1항에 있어서,
상기 도데실 설페이트 금속염은 Fe(DS)3인 것을 특징으로 하는 유기 전기화학 트랜지스터 소자. - 제1항에 있어서,
상기 PEDOT 필름 내 도데실 설페이트의 함유량은 5~50% 범위 내인 것을 특징으로 하는 유기 전기화학 트랜지스터 소자. - 제1항에 있어서,
전달전도율 최대값이 6mS 이상인 것을 특징으로 하는 유기 전기화학 트랜지스터 소자. - 제1항에 있어서,
48시간 이상 수용액에 담근 후의 전달전도율 변화량이 10% 이하인 것을 특징으로 하는 유기 전기화학 트랜지스터 소자. - 제1항에 있어서,
1만회 이상 굽힘 테스트 후의 전달전도율 변화량이 30% 이하인 것을 특징으로 하는 유기 전기화학 트랜지스터 소자. - 제1항, 제2항, 제5항 내지 제9항 중 어느 한 항에 따른 유기 전기화학 트랜지스터 소자를 포함하는 바이오 센서.
- 제10항에 있어서,
Poly(hydroxymethyl-EDOT) 고분자 활성층에 바이오 리셉터가 고정화된 바이오 센서. - 제11항에 있어서,
상기 바이오 리셉터를 고분자 활성층에 결합시키기 위한 링커를 더 포함하는 것을 특징으로 하는 바이오 센서. - 제12항에 있어서,
상기 바이오 리셉터를 상기 링커에 결합시키기 위한 크로스 링커를 더 포함하는 것을 특징으로 하는 바이오 센서. - 제13항에 있어서,
상기 링커는 APS 자기조립 분자막이고, 상기 크로스 링커는 Sulfo-SMCC인 것을 특징으로 하는 바이오 센서. - 기판 상면에 형성된 소스 전극 및 드레인 전극을 형성하는 전극 형성 단계;
상기 기판 상면에 상기 소스 전극 및 드레인 전극과 전기적으로 접촉하는 Poly(hydroxymethyl-EDOT) 고분자 활성층을 형성하는 활성층 형성 단계;
을 포함하고,
상기 활성층 형성 단계는 혼합산화제가 도포된 기판에 기상중합법으로 수행되며,
상기 전극 형성 단계는,
기판 상에 도데실 설페이트 금속염을 포함하는 산화제를 코팅하는 단계;
상기 산화제가 코팅된 기판 상에 기상중합법으로 도데실 설페이트가 도핑된 PEDOT 필름을 형성하는 단계;
상기 PEDOT 필름을 세척 및 건조하는 단계;
를 포함하는 것을 특징으로 하는 유기 전기화학 트랜지스터 소자의 제조방법. - 제15항에 있어서,
상기 혼합산화제는 FeCl3, DUDO 및 PEG-PPG-PEG이 혼합된 혼합산화제인 것을 특징으로 하는 유기 전기화학 트랜지스터 소자의 제조방법. - 제16항에 있어서,
상기 혼합산화제의 조성범위는 FeCl3·6H2O 0.5 mmol ~ 8 mmol, DUDO 0.1 mmol ~ 0.6 mmol, PEG-PPG-PEG 0.005 mmol ~ 0.3 mmol 인 것을 특징으로 하는 유기 전기화학 트랜지스터 소자의 제조방법. - 제17항에 있어서,
상기 혼합산화제의 조성범위는 FeCl3·6H2O 5 mmol ~ 6 mmol, DUDO 0.3 mmol ~ 0.4 mmol, PEG-PPG-PEG 0.1 mmol ~ 0.2 mmol 인 것을 특징으로 하는 유기 전기화학 트랜지스터 소자의 제조방법. - 삭제
- 제15항에 있어서,
상기 도데실 설페이트 금속염은 Fe(DS)3를 포함하는 것을 특징으로 하는 유기 전기화학 트랜지스터 소자의 제조방법.
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