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중합 박막 트랜지스터를 위한Ta2O5 유전체 접합의 자기조립 단분자막의 특성
최광남,정관수,김동식,곽성관 대한전자공학회 2006 電子工學會論文誌 IE (Industry electronics) Vol.43 No.1
The characteristics of polymeric thin-film transistors(TFTs) can be controlled by chemically modifying the surface of the gate dielectric prior to the organic semiconductor. The chemical treatment consists of derivative the tantalum pentoxide(Ta2O5) surface with organic materials to form self-assembled monolayer(SAM). The deposition of an octadecyl-trichlorosilane(OTS), hexamethy-ldisilazane(HMDS), aminopropyltreithoxysilane(ATS) SAM leads to a mobility of 0.01 ~ 0.06 cm2/V·s in a poly-3-hexylthiophene(P3HT) conjugated polymer. The mobility enhancement mechanism is likely to involve molecular interactions between the polymer and SAM. These result can be used for polymer TFT's dielectric material. 중합 박막 트랜지스터의 특성은 유기 반도체에 앞서 게이트유전체 표면의 화학적 변형에 의해 조절 가능하다. 화학적 처리는 자기조립 단분자막 형태의 유전물질과 함께 파생된 tantalum pentoxide(Ta2O5) 표면으로 구성된다. Octadecyltrichlorosilane(OTS), hexamethyldisilazane (HMDS), aminopropyltreithoxysilane(ATS) 자기조립 단분자막의 성장은 중합체로 결합된 poly-3-hexylthiophene (P3HT)의 분위기에서 0.01 ~ 0.06 cm2/V·s의 이동도로 진행되었다. 이동도 향상 메커니즘은 중합체와 자기조립 단분자막 사이의 분자 상호작용에 영향을 미치는 것으로 확인하였다. 이는 향후 ploymer TFT의 유전박막 중 하나로서 유용하게 사용 될 것이다.
도은 이숭인의 시의 풍격 : 청신을 중심으로 in`s poems
최광범 안암어문학회 2001 어문논집 Vol.44 No.1
The present thesis is one of my works to illuminate poetic characters of the poems written around the end of the Koryo Empire. Lee Saek, Jung Mong-Ju, and Jung Do-Joen showed broad and majestical poetic gusto. [Hobang 豪放· Woongkun 雄健] They all cherished the will to establish a utopia when Sungrihak or the dental Metaphysics began to root in the empire`s mental soil. Lee Jip, Won Chon- Seok, and G1 Jae serenely wrote poems in ordinary and simple style[Pyungdam 平淡] tinted with the profound and leisurely zest of life in the country and the pleasure of cultivating conscience. On the other hand, Lee Sung-in and Kim Gu-yong were outstanding in the new and fresh poetic gusto[Chungsin 淸新] flowing out of clean and elegant personality. Lee Sung-in had a sincere longing to escape from tainted politics and return into the country while he was criticizing the corrupted realities and, meanwhile, revering koyalty to the dynasty in the times of turbulence around the end of the Koryro Empire. Most of his poems are about the clear and clean beauty of nature and the easy life in it. Usually these poems can be said to harbour a new and fresh poetic gusto, which flows out of elegant and sober spirit. The characteristics of Lee Sung-in's poetic expression are terseness without flamboyant rhetorical flourishes, clear and elegant poetic diction, sincere expression of plain life and immaculate scenery almost without using anecdotes or introducing theoretical explanations, excellent musicality and pictorial beauty of themselves out of detachment. His poems are exquisitely fitted in spite of the fact that he described extremely conmon and plain rural life and scenery rather than extraordinary scenery with unaffected simplicity without artificiality. Right in this respect the distinctiveness of Lee Sung-in's poetic gusto lies. His poetic gusto is different from the flamboyant and fresh style[Chwzgki .rWhwzgryu o of Jung Jisang, Lee In-ro, and Jin Hwa, poets of the frrer period, who were rresentative of new and fresh stylistic ffau. Also it is different frn that of Kim Gu-yg, who can be said to rresent with Doem new and fresh poetic esprit, in that Kim's is duly drenched in intelligentzia's anguish and rich in poetic dicti. If he is cnpared with other poets excellent in such poetic gusto, the characteristics of L,ee Sung-in's poetic gusto would be mere clearly manifested. But putting it off until next chance, I gave light the characteristics of the new and fresh poetic gusto found in Lee Sung-in's poems, focusing his mental ientati and the features of his poetic expressis.