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Characteristics of perylene OTFT fabricated in UHV  

박대식 (연세대학교 물리 및 응용물리 사업단)
강성준 (연세대학교 물리 및 응용물리 사업단)
김희중 (연세대학교 물리 및 응용물리 사업단)
노명근 (연세대학교 물리 및 응용물리 사업단)
황정남 (연세대학교 물리 및 응용물리 사업단)
Publication Information
Journal of the Korean Vacuum Society / v.13, no.1, 2004 , pp. 9-13 More about this Journal
Abstract
Perylene is an interesting material known to have P-type and N-type characteristics at the same time. We prepared perylene thin-films in ultrahigh vacuum with two different deposition rates of 0.1 $\AA$/s and 1.0 $\AA$/s in order to study the dependence of film characteristics on the growth condition. The smaller average grain size with larger surface coverage as well as the better crystallinity were observed on the perylene film prepared under 1.0 $\AA$/s deposition rate in x-ray diffraction (XRD) and atomic force microscopy (AFM) study. For studying electrical property of the film, perylene organic thin-film transistor (OTFT) with gold contacts was fabricated on $SiO_2$/Si surface in UHV condition. The prepared perylene OTFT device shows P-type characteristic. The obtained hole mobility in the current-voltage characteristic curve was$2.23\times10^{-5}\textrm{cm}^2$/Vs.
Keywords
perylene; Organic Thin-Film Transistor (OTFT); deposition rate; crystallinity; surface coverage;
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