화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2013년 봄 (04/24 ~ 04/26, 광주 김대중컨벤션센터)
권호 19권 1호, p.678
발표분야 재료
제목 All Layers Inkjet-printed Field Effect Transistors using p-CuO Nanoparticles Based Ink-formulation
초록 Copper oxide (CuO) nanoparticles (NPs) having 5-8 nm in diameter were synthesized by a simple solution process. The as-synthesized NPs showed highly crystalline monoclinic phase of CuO with having bandgap of ~1.75 eV. The CuO NPs were further formulated as an ink using mixed solvents of water, ethanol, isopropanol and diethylene glycol for inkjet printing of CuO field effect transistors (FETs). The ink-jetting behavior of the as-formulated ink samples showed that the CuO concentration and digitally-controlled number of over-printing are important factors for optimizing the uniformity and thickness of printed films with smooth edge definition. In this report, we present the first results of inkjet printed CuO (channel) and Cu (source/drain) based field effect transistors (FET) on Si/SiO2 (gate material) substrate. As-printed devices show p-type conductivity with high carrier mobility, which can be applied further for various applications.
저자 Mohammad Vaseem, 홍아라, 김희망, 한윤봉
소속 전북대
키워드 CuO nanoparticles; Ink formulation; Ink-jet printing; Field effect transistor (FET)
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