Photoluminescence from Anodic Aluminum Oxide Formed via Etidronic Acid Anodizing and Enhancing the Intensity

Kikuchi, Tatsuya; Akiya, Shunta; Kunimoto, Kaito; Suzuki, Ryosuke O.; Natsui, Shungo

Photoluminescence from Anodic Aluminum Oxide Formed via Etidronic Acid Anodizing and Enhancing the Intensity

Kikuchi, Tatsuya; Akiya, Shunta; Kunimoto, Kaito et al.

Materials transactions, 2020, 61(6), 1130-1137

Permalink : https://hdl.handle.net/2115/78770

このアイテムのアクセス数:597件（2026-08-18 18:11 集計）

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アクセス権	open access
URI	https://hdl.handle.net/2115/78770
タイトル	Photoluminescence from Anodic Aluminum Oxide Formed via Etidronic Acid Anodizing and Enhancing the Intensity
著者	Kikuchi, Tatsuya ; Akiya, Shunta ; Kunimoto, Kaito ; Suzuki, Ryosuke O. ; Natsui, Shungo
e-Rad_Researcher 60374584 著者名 Kikuchi, Tatsuya
著者名 Akiya, Shunta
著者名 Kunimoto, Kaito
e-Rad_Researcher 80179275 著者名 Suzuki, Ryosuke O.
e-Rad_Researcher 70706879 著者名 Natsui, Shungo
言語	英語
キーワード	aluminum
	anodizing
	anodic aluminum oxide
	etidronic acid
	photoluminescence
発行日	2020-06-01
出版者	Japan Institute Metals and Materials
収録物名	Materials transactions
巻(号)	61(6)
ページ	1130-1137
抄録	Photoluminescence (PL) emission from anodic aluminum oxide (AAO) formed by etidronic acid anodizing was investigated via fluorescence spectroscopy. Highly pure aluminum plates were anodized in an etidronic acid solution under various operating conditions. PL emission from the typical AAO film was identified with an approximately 250-275-nm range in excitation and a 375-450-nm range in emission, and this distribution was greatly different from the AAO film formed by typical carboxylic acid treatment. The PL intensity increased with the decrease of the concentration of etidronic acid solution. The intensity also increased with anodizing time and subsequent thermal treatment, whereas excess anodizing and high temperature treatment caused an intensity decrease. The AAO film consisted of an outer oxide containing incorporated etidronate anions and a thin honeycomb inner oxide without anions, and the oxygen vacancy localized in the AAO film and anion distribution strongly affected the PL intensity. The appropriate operating condition through anodizing in 0.05M etidronic acid for 40 h and subsequent thermal treatment at 773K for 2 h caused the maximum enhancement of the PL emission.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
PISSN	1345-9678
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.2320/matertrans.MT-M2020010