エハラ　タカシ   Takashi Ehara   惠原　貴志    所属   石巻専修大学  理工学部    職種   教授
言語種別	英語
発行・発表の年月	2016/07
形態種別	研究論文（学術雑誌）
査読	査読あり
標題	Preparation of CuAlO2 Thin Films by Sol-Gel Method Using Nitrate Solution Dip-Coating
執筆形態	共著
掲載誌名	MATEC Web of Conferences
巻・号・頁	67,pp.04012
総ページ数	6
概要	CuAlO2 thin films are prepared by sol-gel dip-coating followed by annealing in nitrogen atmosphere using copper nitrate and aluminum nitrate as metal source materials. X-ray diffraction (XRD) patterns show (003), (006) and (009) oriented peaks of CuAlO2 at annealing temperature of 800 – 1000°C. This result indicates that the CuAlO2 films prepared in the present work are c-axis oriented. XRD peak intensity increase with annealing temperature and becomes maximum at 850°C. The CuAlO2 XRD peak decreased at annealing temperature of 900°C with appearance of a peak of CuO, and then increased again with annealing temperature until 1000 °C. The films have bandgap of 3.4 eV at annealing temperature of 850°C in which the transparency becomes the highest. At the annealing temperature of 850°C, scanning electron microscope (SEM) observation reveals that the films are consist of amorphous fraction and microcrystalline CuAlO2 fraction.
DOI	http://dx.doi.org/10.1051/matecconf/20166704012