Lithium-ion conducting La 2/3-xLi 3xTiO 3 solid electrolyte thin films with stepped and terraced surfaces

Hiromichi Ohta; Teruyasu Mizoguchi; Noriyuki Aoki; Takashi Yamamoto; Akhmad Sabarudin; Tomonari Umemura

doi:10.1063/1.4709402

Lithium-ion conducting La _2/3-xLi _3xTiO ₃ solid electrolyte thin films with stepped and terraced surfaces

Hiromichi Ohta^*
, Teruyasu Mizoguchi
, Noriyuki Aoki
, Takashi Yamamoto
, Akhmad Sabarudin
, Tomonari Umemura

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

La _2/3-xLi _3xTiO ₃ (LLT, x = 0.1 and 0.167) thin films were grown on (001)-oriented SrTiO ₃ (STO) substrates by pulsed laser deposition. The resultant LLT films were heteroepitaxially grown with atomically flat surfaces. Although the films considered to be single crystalline, they were composed of 90°-rotated multi domains (∼5 nm in size) with epitaxial relationships of (100) [001] LLT ∥ (001) [100] STO and (100) [010] LLT ∥ (001) [100] STO. The bulk conductivity of the LLT (x = 0.1) films was 2.5 × 10 ^-2 S cm ^-1 at 190 °C, comparable to that of a bulk single crystalline LLT. Single crystalline LLT thin films with atomically flat surfaces should help clarify interfacial lithium-ion conductivity.

Original language	English
Article number	173107
Journal	Applied Physics Letters
Volume	100
Issue number	17
DOIs	https://doi.org/10.1063/1.4709402
Publication status	Published - 23 Apr 2012
Externally published	Yes

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10.1063/1.4709402

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title = "Lithium-ion conducting La 2/3-xLi 3xTiO 3 solid electrolyte thin films with stepped and terraced surfaces",

abstract = "La 2/3-xLi 3xTiO 3 (LLT, x = 0.1 and 0.167) thin films were grown on (001)-oriented SrTiO 3 (STO) substrates by pulsed laser deposition. The resultant LLT films were heteroepitaxially grown with atomically flat surfaces. Although the films considered to be single crystalline, they were composed of 90°-rotated multi domains (∼5 nm in size) with epitaxial relationships of (100) [001] LLT ∥ (001) [100] STO and (100) [010] LLT ∥ (001) [100] STO. The bulk conductivity of the LLT (x = 0.1) films was 2.5 × 10 -2 S cm -1 at 190 °C, comparable to that of a bulk single crystalline LLT. Single crystalline LLT thin films with atomically flat surfaces should help clarify interfacial lithium-ion conductivity.",

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T1 - Lithium-ion conducting La 2/3-xLi 3xTiO 3 solid electrolyte thin films with stepped and terraced surfaces

AU - Ohta, Hiromichi

AU - Mizoguchi, Teruyasu

AU - Aoki, Noriyuki

AU - Yamamoto, Takashi

AU - Sabarudin, Akhmad

AU - Umemura, Tomonari

PY - 2012/4/23

Y1 - 2012/4/23

N2 - La 2/3-xLi 3xTiO 3 (LLT, x = 0.1 and 0.167) thin films were grown on (001)-oriented SrTiO 3 (STO) substrates by pulsed laser deposition. The resultant LLT films were heteroepitaxially grown with atomically flat surfaces. Although the films considered to be single crystalline, they were composed of 90°-rotated multi domains (∼5 nm in size) with epitaxial relationships of (100) [001] LLT ∥ (001) [100] STO and (100) [010] LLT ∥ (001) [100] STO. The bulk conductivity of the LLT (x = 0.1) films was 2.5 × 10 -2 S cm -1 at 190 °C, comparable to that of a bulk single crystalline LLT. Single crystalline LLT thin films with atomically flat surfaces should help clarify interfacial lithium-ion conductivity.

AB - La 2/3-xLi 3xTiO 3 (LLT, x = 0.1 and 0.167) thin films were grown on (001)-oriented SrTiO 3 (STO) substrates by pulsed laser deposition. The resultant LLT films were heteroepitaxially grown with atomically flat surfaces. Although the films considered to be single crystalline, they were composed of 90°-rotated multi domains (∼5 nm in size) with epitaxial relationships of (100) [001] LLT ∥ (001) [100] STO and (100) [010] LLT ∥ (001) [100] STO. The bulk conductivity of the LLT (x = 0.1) films was 2.5 × 10 -2 S cm -1 at 190 °C, comparable to that of a bulk single crystalline LLT. Single crystalline LLT thin films with atomically flat surfaces should help clarify interfacial lithium-ion conductivity.

UR - https://www.scopus.com/pages/publications/84860323233

U2 - 10.1063/1.4709402

DO - 10.1063/1.4709402

M3 - Article

AN - SCOPUS:84860323233

SN - 0003-6951

VL - 100

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 17

M1 - 173107

ER -

Lithium-ion conducting La _2/3-xLi _3xTiO ₃ solid electrolyte thin films with stepped and terraced surfaces

Abstract

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