A method for analyzing two-dimensional lithium ion concentration in the nano silicon films

Hao Sen Chen; Yu Han; Le Yang; Yin Hua Bao; Jian Chen; Xiang Li; Jing Pang; Wei Li Song; Dai Ning Fang

doi:10.1063/1.5132578

A method for analyzing two-dimensional lithium ion concentration in the nano silicon films

Hao Sen Chen, Yu Han, Le Yang^*, Yin Hua Bao, Jian Chen, Xiang Li, Jing Pang, Wei Li Song, Dai Ning Fang

^*Corresponding author for this work

Institute of Advanced Structure Technology

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

8 Citations (Scopus)

Abstract

With the variation of thickness and composition, the color of the nanosilicon film electrode in lithium ion batteries would be changed during lithium ion intercalation and deintercalation. Based on such phenomenon, here we present a method for evaluating the two-dimensional lithium ion concentration in the nanosilicon film. In the demonstration of a silicon film with thickness ∼115 nm, the correlation between tristimulus values and lithium ion concentration is established. In a piece of a large silicon film, the inhomogeneous lithium ion concentration could be obtained, highlighting a fast and noncontact method for in situ observation and analyses of the kinetic process of ion intercalation and deintercalation in nanosilicon films.

Original language	English
Article number	264102
Journal	Applied Physics Letters
Volume	115
Issue number	26
DOIs	https://doi.org/10.1063/1.5132578
Publication status	Published - 23 Dec 2019

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title = "A method for analyzing two-dimensional lithium ion concentration in the nano silicon films",

abstract = "With the variation of thickness and composition, the color of the nanosilicon film electrode in lithium ion batteries would be changed during lithium ion intercalation and deintercalation. Based on such phenomenon, here we present a method for evaluating the two-dimensional lithium ion concentration in the nanosilicon film. In the demonstration of a silicon film with thickness ∼115 nm, the correlation between tristimulus values and lithium ion concentration is established. In a piece of a large silicon film, the inhomogeneous lithium ion concentration could be obtained, highlighting a fast and noncontact method for in situ observation and analyses of the kinetic process of ion intercalation and deintercalation in nanosilicon films.",

author = "Chen, {Hao Sen} and Yu Han and Le Yang and Bao, {Yin Hua} and Jian Chen and Xiang Li and Jing Pang and Song, {Wei Li} and Fang, {Dai Ning}",

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T1 - A method for analyzing two-dimensional lithium ion concentration in the nano silicon films

AU - Chen, Hao Sen

AU - Han, Yu

AU - Yang, Le

AU - Bao, Yin Hua

AU - Chen, Jian

AU - Li, Xiang

AU - Pang, Jing

AU - Song, Wei Li

AU - Fang, Dai Ning

PY - 2019/12/23

Y1 - 2019/12/23

N2 - With the variation of thickness and composition, the color of the nanosilicon film electrode in lithium ion batteries would be changed during lithium ion intercalation and deintercalation. Based on such phenomenon, here we present a method for evaluating the two-dimensional lithium ion concentration in the nanosilicon film. In the demonstration of a silicon film with thickness ∼115 nm, the correlation between tristimulus values and lithium ion concentration is established. In a piece of a large silicon film, the inhomogeneous lithium ion concentration could be obtained, highlighting a fast and noncontact method for in situ observation and analyses of the kinetic process of ion intercalation and deintercalation in nanosilicon films.

AB - With the variation of thickness and composition, the color of the nanosilicon film electrode in lithium ion batteries would be changed during lithium ion intercalation and deintercalation. Based on such phenomenon, here we present a method for evaluating the two-dimensional lithium ion concentration in the nanosilicon film. In the demonstration of a silicon film with thickness ∼115 nm, the correlation between tristimulus values and lithium ion concentration is established. In a piece of a large silicon film, the inhomogeneous lithium ion concentration could be obtained, highlighting a fast and noncontact method for in situ observation and analyses of the kinetic process of ion intercalation and deintercalation in nanosilicon films.

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VL - 115

JO - Applied Physics Letters

JF - Applied Physics Letters

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A method for analyzing two-dimensional lithium ion concentration in the nano silicon films

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