KR20100135895A - 펜타센-탄소 나노튜브 혼합체, 그 형성 방법, 및 혼합체 포함 반도체 소자 - Google Patents
펜타센-탄소 나노튜브 혼합체, 그 형성 방법, 및 혼합체 포함 반도체 소자 Download PDFInfo
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Abstract
Description
도 1은 본 발명의 바람직한 실시 예에 따른, 탄소 나노튜브-펜타센 혼합체(100)을 도시한다;
도 2는 본 발명의 바람직한 또 다른 실시 예에 따른, CNT-펜타센 혼합체를 형성하는 방법(200)을 도시한다;
도 3a는 본 발명의 바람직한 실시 예에 따른, 펜타센 전구체(III)를 제공하기 위해 루이스 산 촉매의 존재하에서 디에노파일 N-술피닐아세트아마이드(dienophile N-sulfinylacetamide)(II)와 반응하게 되는 펜타센(I)을 도시한다;
도 3b는 본 발명의 바람직한 실시 예에 따라, 증착된 분산 용액 내의 탄소 나노튜브(310)을 따라 펜타센 전구체(305)의 복수의 분자들이 정렬(orientation) 하는 예를 도시한다;
도 3c는 CNT 상에 코팅된 펜타센 전구체를 펜타센으로 변환하기 위해 질소 분위기에서 100℃-200℃ 범위의 온도로 기판을 가열 처리하는 단계를 도시한다;
도 4는 본 발명의 바람직한 실시 예에 따른 반도체 소자(450)(예, 전계 효과 트랜지스터(FET))를 형성하는 바람직한 방법(400)을 도시한다;
도 5a-5c는 본 발명의 바람직한 또 다른 실시 예들에 따른 반도체 소자(450)에 대한 다른 구성들을 도시한다; 그리고
도 6은 본 발명에 따른 반도체 소자를 형성하는 바람직한 방법(600)을 도시한다.
Claims (19)
- 혼합체 재료(composite material)에서,
탄소 나노튜브( a carbon nanotube); 및
상기 탄소 나노튜브에 결합된(bonded) 복수의 펜타센 분자들(pentacene molecules)을 포함하는
혼합체 재료.
- 제 1항에서,
상기 복수의 펜타센 분자들은 ∏-∏ 스태킹을 통해 상기 탄소 나노튜브의 측벽(sidewall)과 상호작용하는(interact)
혼합체 재료.
- 제 1항에서,
상기 복수의 펜타센 분자들은, ∏-∏ 결합, 전하-이동 결합(charge-transfer bonding) 및 정(靜)전기 결합 중 적어도 하나에 의해 상기 탄소 나노튜브에 결합되는
혼합체 재료.
- 제 1항에서,
상기 탄소 나노튜브는 전기적으로 반도체성이며(semiconductive), 단일-벽으로 된(single-walled) 탄소 나노튜브를 포함하는
혼합체 재료.
- 탄소 나노튜브-펜타센 혼합체 층을 형성하는 방법에서, 상기 방법은:
용해가능한 펜타센 전구체 및 탄소 나노튜브들의 분산 용액(dispersion)을 기판 상부에 증착하는 단계;
상기 분산 용액으로부터 용매를 제거하기 위해 상기 분산 용액을 가열 처리하는 단계;
상기 펜타센 전구체를 펜타센으로 변환하고 상기 탄소 나노튜브-펜타센 혼합체 층을 형성하기 위해 상기 기판을 가열 처리하는 단계를 포함하는
방법.
- 제 5항에서,
상기 분산 용액을 가열 처리하는 단계는
50℃ 에서 100℃ 범위의 온도에서 가열 처리하는 단계를 포함하는
방법.
- 제 5항에서,
상기 기판을 가열 처리하는 단계는
질소 분위기 하에서(under nitrogen) 상기 기판을 100℃ 에서 200℃ 범위에서 가열 처리하는 단계를 포함하는
방법.
- 제 5항에서,
N-술피닐아마이드(N-sulfinylamide)와 펜타센의 디일스-알더 반응(Diels-Alder reaction)으로부터 상기 용해 가능한 펜타센 전구체를 획득하는 단계를 더 포함하는
방법.
- 제 5항에서,
용해가능한 펜타센 전구체 및 탄소 나노튜브들의 상기 분산 용액을 형성하는 단계를 더 포함하는
방법.
- 제 9항에서,
상기 분산 용액을 형성하는 단계는
정제된 탄소 나노튜브들을 유기 용매에 혼합하는 단계를 포함하는
방법.
- 제 10항에서,
상기 분산 용액을 형성하는 단계는
코디네이트 되지않은(un-coordinated) 탄소 나노튜브들의 침전물을 제거하기 위해 상기 혼합물을 초음파 처리 및 원심분리 처리하는 단계를 더 포함하는
방법.
- 제 11항에서,
상기 안정된(stable) 분산 용액은
상기 혼합물을 상기 초음파 처리 및 원심분리 처리하는 단계로부터 생성된 상층액(a supernatant liquid)을 포함하는
방법.
- 제 5항에서,
상기 안정된 분산 용액을 증착하는 단계는
상기 안정된 분산 용액을 상기 기판 상부에 스핀 코팅(spin coating) 및 드롭 캐스팅(drop casting)하는 것 중 하나를 포함하는
방법.
- 제 5항에서,
상기 펜타센 전구체는
펜타센-N-술피닐아세트아마이드(pentacene-N-sulfinylacetamide)를 포함하는
방법.
- 제 5항에서,
상기 기판 상부에 소스, 드레인 및 게이트 전극들을 형성하되, 상기 분산 용액이 상기 소스 및 드레인 전극들 사이에 증착되도록 형성하는 단계를 더 포함하는
방법.
- 제 5항에서,
상기 기판 상부에 절연 층(insulating layer)을 형성하되, 상기 분산 용액이 상기 절연 층 상부에 증착되도록 형성하는 단계를 더 포함하는
방법.
- 전계 효과 트랜지스터에서, 상기 트랜지스터는
기판 상부에 형성된 소스, 드레인 및 게이트 전극들; 및
상기 기판 상부에 형성된 채널 영역을 포함하되,
상기 채널 영역은 청구항 1항 내지 4항 중 어느 한 항에서 청구된 혼합체 재료 층을 포함하는
전계 효과 트랜지스터.
- 전계 효과 트랜지스터를 형성하는 방법에서, 상기 방법은:
기판 상부에 소스, 드레인 및 게이트 전극들을 형성하는 단계; 및
상기 기판 상부에 채널 영역을 형성하되, 상기 채널 영역은 청구항 1항 내지 4항 중 어느 한 항에서 청구된 혼합체 재료 층을 포함하는
방법.
- 제 18항에서,
상기 채널 영역을 형성하는 단계는:
용해 가능한 펜타센 전구체 및 탄소 나노튜브들의 안정된 분산 용액을 상기 기판 상부에 증착하는 단계;
상기 분산 용액으로부터 용매를 제거하기 위해 상기 분산 용액을 가열 처리하는 단계; 및
상기 펜타센 전구체를 펜타센으로 변환하고 상기 탄소 나노튜브-펜타센 혼합체 층을 형성하기 위해 상기 기판을 가열 처리하는 단계를 포함하는
방법.
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US7125989B2 (en) | 2001-11-26 | 2006-10-24 | International Business Machines Corporation | Hetero diels-alder adducts of pentacene as soluble precursors of pentacene |
US6963080B2 (en) | 2001-11-26 | 2005-11-08 | International Business Machines Corporation | Thin film transistors using solution processed pentacene precursor as organic semiconductor |
US20040183070A1 (en) | 2003-03-21 | 2004-09-23 | International Business Machines Corporation | Solution processed pentacene-acceptor heterojunctions in diodes, photodiodes, and photovoltaic cells and method of making same |
US7563500B2 (en) | 2003-08-27 | 2009-07-21 | Northeastern University | Functionalized nanosubstrates and methods for three-dimensional nanoelement selection and assembly |
AU2005253604B2 (en) | 2004-06-08 | 2011-09-08 | Scandisk Corporation | Methods and devices for forming nanostructure monolayers and devices including such monolayers |
US7405129B2 (en) | 2004-11-18 | 2008-07-29 | International Business Machines Corporation | Device comprising doped nano-component and method of forming the device |
US7598516B2 (en) | 2005-01-07 | 2009-10-06 | International Business Machines Corporation | Self-aligned process for nanotube/nanowire FETs |
US7504132B2 (en) | 2005-01-27 | 2009-03-17 | International Business Machines Corporation | Selective placement of carbon nanotubes on oxide surfaces |
US7391074B2 (en) | 2005-08-03 | 2008-06-24 | International Business Machines Corporation | Nanowire based non-volatile floating-gate memory |
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US8859048B2 (en) | 2006-01-03 | 2014-10-14 | International Business Machines Corporation | Selective placement of carbon nanotubes through functionalization |
US7771695B2 (en) | 2006-07-21 | 2010-08-10 | International Business Machines Corporation | Complexes of carbon nanotubes and fullerenes with molecular-clips and use thereof |
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