title: In situ electron holography of electric potentials inside a solid-state electrolyte: Effect of electric-field leakage.
abstract: In situ electron holography is used to observe changes of electric-potential distributions in an amorphous lithium phosphorus oxynitride (LiPON) solid-state electrolyte when different voltages are applied. 2D phase images are simulated by integrating the 3D potential distribution along the electron trajectory through a thin Cu/LiPON/Cu region. Good agreement between experimental and simulated phase distributions is obtained when the influence of the external electric field is taken into account using the 3D boundary-charge method. Based on the precise potential changes, the lithium-ion and lithium-vacancy distributions inside the LiPON layer and electric double layers (EDLs) are inferred. The gradients of the phase drops at the interfaces in relation to EDL widths are discussed.
authors.affiliation: Nanostructures Research Laboratory, Japan Fine Ceramics Center, 2-4-1 Mutsuno, Atsuta-ku, Nagoya, Aichi 456-8587, Japan.
authors.forename: Yuka
authors.initials: Y
authors.lastname: Aizawa
authors.affiliation: Nanostructures Research Laboratory, Japan Fine Ceramics Center, 2-4-1 Mutsuno, Atsuta-ku, Nagoya, Aichi 456-8587, Japan.
authors.forename: Kazuo
authors.initials: K
authors.lastname: Yamamoto
authors.affiliation: Nanostructures Research Laboratory, Japan Fine Ceramics Center, 2-4-1 Mutsuno, Atsuta-ku, Nagoya, Aichi 456-8587, Japan.
authors.forename: Takeshi
authors.initials: T
authors.lastname: Sato
authors.affiliation: Faculty of Science and Technology, Meijo University, 1-501 Shiogamaguchi, Tempaku-ku, Nagoya, Aichi 468-8502, Japan.
authors.forename: Hidekazu
authors.initials: H
authors.lastname: Murata
authors.affiliation: Nanostructures Research Laboratory, Japan Fine Ceramics Center, 2-4-1 Mutsuno, Atsuta-ku, Nagoya, Aichi 456-8587, Japan.
authors.forename: Ryuji
authors.initials: R
authors.lastname: Yoshida
authors.affiliation: Nanostructures Research Laboratory, Japan Fine Ceramics Center, 2-4-1 Mutsuno, Atsuta-ku, Nagoya, Aichi 456-8587, Japan.
authors.forename: Craig A J
authors.initials: CAJ
authors.lastname: Fisher
authors.affiliation: Department of Materials, Physics and Energy Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan.
authors.forename: Takehisa
authors.initials: T
authors.lastname: Kato
authors.affiliation: Department of Materials, Physics and Energy Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan.
authors.forename: Yasutoshi
authors.initials: Y
authors.lastname: Iriyama
authors.affiliation: Nanostructures Research Laboratory, Japan Fine Ceramics Center, 2-4-1 Mutsuno, Atsuta-ku, Nagoya, Aichi 456-8587, Japan. Electronic address: t-hirayama@jfcc.or.jp.
authors.forename: Tsukasa
authors.initials: T
authors.lastname: Hirayama
keywords: 3D-boundary-charge method; Effect of electric-field leakage; Electric-potential distribution; Electron holography; Solid electrolyte