DC Field | Value | Language |
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dc.contributor.advisor | Cho, Sung-Oh | - |
dc.contributor.advisor | 조성오 | - |
dc.contributor.author | Lee, Hyeok-Moo | - |
dc.contributor.author | 이혁무 | - |
dc.date.accessioned | 2011-12-14T08:06:51Z | - |
dc.date.available | 2011-12-14T08:06:51Z | - |
dc.date.issued | 2011 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=466430&flag=dissertation | - |
dc.identifier.uri | http://hdl.handle.net/10203/49041 | - |
dc.description | 학위논문(박사) - 한국과학기술원 : 원자력및양자공학과, 2011.2, [ vi, 73 p. ] | - |
dc.description.abstract | It was discovered that non-luminescent polystyrene (PS) can be converted to luminescent materials whose color can be changed in a wide visible range by electron irradiation. After the analyses of electron-irradiated PS, it was found that polycyclic aromatic hydrocarbons are produced by the irradiation and these PAHs are the origin of the luminescence from the electron-irradiated polymer. Based on the finding, a straightforward approach to produce desired light-emitting nanoarchitectures and nanopatterns only by irradiating an electron beam to the polymer was presented. In particular, the top-down irradiation approach provides a powerful tool to fabricate a variety of interesting nanoarchitectures when combined with bottom-up approaches; PS nanostructures prepared by self-assembling techniques can be directly transformed to luminescent nanostructures by electron irradiation while keeping their pristine morphologies. Light-emitting materials are widely used for optical, photonic, chemical and biomedical devices and a rapid progress in the devices requires well-defined luminescent nanoarchitectures. The approach presented here will be useful for a wide range of research fields including optics, photonics, chemistry, and biologics. On the other hand, a very simple but effective approach to produce high-performance rubrene organic thin-film transistors (OTFTs) with characteristics better than amorphous silicon TFTs was presented. Only by an abrupt heating process, high-quality crystalline rubrene semiconductor thin films that have almost ideal structures for OTFTs are created. The produced crystalline thin films consist of highly ordered, uniaxially oriented single-crystalline grains with large average sizes and the grains are interconnected with one another to form continuous films over the whole dielectric surfaces. Such high-quality crystalline rubrene thin films are remarkably rapidly produced in just 30 sec through this approach. Moreover, the increase of car... | eng |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | polystyrene | - |
dc.subject | organic thin-film transistors | - |
dc.subject | luminescent nanostructures | - |
dc.subject | electron irradiation | - |
dc.subject | rubrene | - |
dc.subject | 루브렌 | - |
dc.subject | 폴리스티렌 | - |
dc.subject | 유기박막트랜지스터 | - |
dc.subject | 발광나노구조체 | - |
dc.subject | 전자빔조사 | - |
dc.title | Fabrication of organic semiconducting materials and high-performance organic thin-film transistors based on electron-irradiated polystyrene | - |
dc.title.alternative | 전자빔에 조사된 폴리스티렌을 이용한 반도체성 유기 발광물질 및 고성능 유기박막트랜지스터 제조 | - |
dc.type | Thesis(Ph.D) | - |
dc.identifier.CNRN | 466430/325007 | - |
dc.description.department | 한국과학기술원 : 원자력및양자공학과, | - |
dc.identifier.uid | 020075146 | - |
dc.contributor.localauthor | Lee, Hyeok-Moo | - |
dc.contributor.localauthor | 이혁무 | - |
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