Metal-Semiconductor Ohmic and Schottky Contact Interfaces for Stable Li-Metal Electrodes

Ryanda Enggar Anugrah Ardhi; Guicheng Liu; Joong Kee Lee

doi:10.1021/acsenergylett.1c00150

Metal-Semiconductor Ohmic and Schottky Contact Interfaces for Stable Li-Metal Electrodes

Ryanda Enggar Anugrah Ardhi, Guicheng Liu^*, Joong Kee Lee^*

^*Corresponding author for this work

KAUST Solar Center

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

19 Scopus citations

Abstract

Li-metal is an attractive anode material for next-generation batteries owing to its high capacity and low reduction potential. Unfortunately, it undergoes dendritic growth, which limits its development. Herein, amorphous polymeric carbon-based semiconducting passivation layers are applied to Li-metal electrodes using radiofrequency plasma thermal evaporation to suppress dendrite growth. The plasma power is controlled to adjust the semiconducting type and mechanical properties of the plasma-polymerized carbon layer (PCL). n- and p-type semiconducting PCLs (n- and p-PCLs) form ohmic and Schottky contacts, respectively, with the Li-metal. p-PCL was more effective than n-PCL at suppressing Li-dendrite formation, as the former enhanced the modulus and Li-ion conductivity, inducing Li-ion deposition below the passivation layer. The p-PCL-coated Li electrode maintains state-of-the-art stable dendrite-free cycling behavior with overpotentials of ∼11.10 and ∼79.84 mV over 16 »450 and 2472 h at 1 and 10 mA cm-2, respectively.

Original language	English (US)
Pages (from-to)	1432-1442
Number of pages	11
Journal	ACS Energy Letters
Volume	6
Issue number	4
DOIs	https://doi.org/10.1021/acsenergylett.1c00150
State	Published - Apr 9 2021

Bibliographical note

Funding Information:
This work was supported by research grants from the National Research Foundation (NRF-2019R1A2B5B03001772 and NRF-2019H1D3A1A01069779) funded by the Ministry of Science and ICT, Republic of Korea, and by the Institutional Program (2E30981). The authors thank Mr. Joo Man Woo (KIST) and Dr. Yuren Wen (University of Science and Engineering Beijing) for technical help during this investigation, and Ms. Cininta Anisa Savitri (KIST) for help in conducting the UV–vis measurements.

Publisher Copyright:
©

ASJC Scopus subject areas

Chemistry (miscellaneous)
Renewable Energy, Sustainability and the Environment
Fuel Technology
Energy Engineering and Power Technology
Materials Chemistry

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1021/acsenergylett.1c00150

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abstract = "Li-metal is an attractive anode material for next-generation batteries owing to its high capacity and low reduction potential. Unfortunately, it undergoes dendritic growth, which limits its development. Herein, amorphous polymeric carbon-based semiconducting passivation layers are applied to Li-metal electrodes using radiofrequency plasma thermal evaporation to suppress dendrite growth. The plasma power is controlled to adjust the semiconducting type and mechanical properties of the plasma-polymerized carbon layer (PCL). n- and p-type semiconducting PCLs (n- and p-PCLs) form ohmic and Schottky contacts, respectively, with the Li-metal. p-PCL was more effective than n-PCL at suppressing Li-dendrite formation, as the former enhanced the modulus and Li-ion conductivity, inducing Li-ion deposition below the passivation layer. The p-PCL-coated Li electrode maintains state-of-the-art stable dendrite-free cycling behavior with overpotentials of ∼11.10 and ∼79.84 mV over 16 »450 and 2472 h at 1 and 10 mA cm-2, respectively.",

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note = "Funding Information: This work was supported by research grants from the National Research Foundation (NRF-2019R1A2B5B03001772 and NRF-2019H1D3A1A01069779) funded by the Ministry of Science and ICT, Republic of Korea, and by the Institutional Program (2E30981). The authors thank Mr. Joo Man Woo (KIST) and Dr. Yuren Wen (University of Science and Engineering Beijing) for technical help during this investigation, and Ms. Cininta Anisa Savitri (KIST) for help in conducting the UV–vis measurements. Publisher Copyright: {\textcopyright} ",

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N1 - Funding Information: This work was supported by research grants from the National Research Foundation (NRF-2019R1A2B5B03001772 and NRF-2019H1D3A1A01069779) funded by the Ministry of Science and ICT, Republic of Korea, and by the Institutional Program (2E30981). The authors thank Mr. Joo Man Woo (KIST) and Dr. Yuren Wen (University of Science and Engineering Beijing) for technical help during this investigation, and Ms. Cininta Anisa Savitri (KIST) for help in conducting the UV–vis measurements. Publisher Copyright: ©

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N2 - Li-metal is an attractive anode material for next-generation batteries owing to its high capacity and low reduction potential. Unfortunately, it undergoes dendritic growth, which limits its development. Herein, amorphous polymeric carbon-based semiconducting passivation layers are applied to Li-metal electrodes using radiofrequency plasma thermal evaporation to suppress dendrite growth. The plasma power is controlled to adjust the semiconducting type and mechanical properties of the plasma-polymerized carbon layer (PCL). n- and p-type semiconducting PCLs (n- and p-PCLs) form ohmic and Schottky contacts, respectively, with the Li-metal. p-PCL was more effective than n-PCL at suppressing Li-dendrite formation, as the former enhanced the modulus and Li-ion conductivity, inducing Li-ion deposition below the passivation layer. The p-PCL-coated Li electrode maintains state-of-the-art stable dendrite-free cycling behavior with overpotentials of ∼11.10 and ∼79.84 mV over 16 »450 and 2472 h at 1 and 10 mA cm-2, respectively.

AB - Li-metal is an attractive anode material for next-generation batteries owing to its high capacity and low reduction potential. Unfortunately, it undergoes dendritic growth, which limits its development. Herein, amorphous polymeric carbon-based semiconducting passivation layers are applied to Li-metal electrodes using radiofrequency plasma thermal evaporation to suppress dendrite growth. The plasma power is controlled to adjust the semiconducting type and mechanical properties of the plasma-polymerized carbon layer (PCL). n- and p-type semiconducting PCLs (n- and p-PCLs) form ohmic and Schottky contacts, respectively, with the Li-metal. p-PCL was more effective than n-PCL at suppressing Li-dendrite formation, as the former enhanced the modulus and Li-ion conductivity, inducing Li-ion deposition below the passivation layer. The p-PCL-coated Li electrode maintains state-of-the-art stable dendrite-free cycling behavior with overpotentials of ∼11.10 and ∼79.84 mV over 16 »450 and 2472 h at 1 and 10 mA cm-2, respectively.

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Metal-Semiconductor Ohmic and Schottky Contact Interfaces for Stable Li-Metal Electrodes

Abstract

Bibliographical note

ASJC Scopus subject areas

UN SDGs

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