Surface analyses of amorphous aluminum oxides with AlO6 clusters. (December 2020)

• Record Type: Journal Article
• Authors: Fukuhara, Mikio; Kuroda, Tomoyuki; Hasegawa, Fumihiko; Hashida, Toshiyuki; Yagyu, Hotaka; Konno, Kazuya; Nishijima, Masahiko; Kwon, Eunsang
• Is Part Of: MRS communications. Volume 10:Number 4(2020)
• Page Start: 674
• Page End: 679
• Publication Date: 2020-12
• Subjects: Materials -- Periodicals; 620.11
• DOI: 10.1557/mrc.2020.82
• Languages: English
• ISSNs: 2159-6859

Abstract

Abstract: Abstract: An amorphous aluminum oxide supercapacitor can store a large amount of electric storge on the uneven surfaces with AlO6 clusters. The amount of stored electricity increases with decreasing convex diameter d and depth of valley h . The nondestructive detection of AlO6 clusters on a surface with (Al0.91 Y0.09 )O1.66 oxide layer at a depth of 0.5 μm was determined based on a 3505 cm − 1 peak band in the Fourier transform-infrared (FT-IR) spectrum and one 1047 cm −1 peak in the microRaman spectrum. The discharging time ( T ) could be expressed as T = 1.388 × 10 0.019 I . Thus, we can evaluate the amount of electricity by the nondestructive detection methods such as FT-IR and the microRaman spectra.