Luminescence enhancement and dual-color emission of stacked mono-layer 2D materials

Po Cheng Tsai; Hon Chin Huang; Chun Wei Huang; Shoou Jinn Chang; Shih Yen Lin

doi:10.1088/1361-6528/ab95b5

Luminescence enhancement and dual-color emission of stacked mono-layer 2D materials

Po Cheng Tsai, Hon Chin Huang, Chun Wei Huang, Shoou Jinn Chang, Shih Yen Lin

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

4 Citations (Scopus)

Abstract

With additional precursor soaking, a thin Al2O3 dielectric layer can be grown on mono-layer MoS2 by using atomic layer deposition (ALD). Similar optical characteristics are observed before and after ALD growth for the mono-layer MoS2, which indicates that minor damage to the thin 2D material film is introduced during the growth procedure. With the thin separation layer, luminescence enhancement and dual-color emission are observed by transferring MoS2 and WS2 mono-layer 2D materials to 5 nm Al2O3/mono-layer MoS2 samples, respectively. The results demonstrate that with careful treatment of the interfaces of 2D crystals with other materials, different stacked structures can be established.

Original language	English
Article number	365702
Journal	Nanotechnology
Volume	31
Issue number	36
DOIs	https://doi.org/10.1088/1361-6528/ab95b5
Publication status	Published - 2020 Sept 4

All Science Journal Classification (ASJC) codes

Bioengineering
General Chemistry
General Materials Science
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

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title = "Luminescence enhancement and dual-color emission of stacked mono-layer 2D materials",

abstract = "With additional precursor soaking, a thin Al2O3 dielectric layer can be grown on mono-layer MoS2 by using atomic layer deposition (ALD). Similar optical characteristics are observed before and after ALD growth for the mono-layer MoS2, which indicates that minor damage to the thin 2D material film is introduced during the growth procedure. With the thin separation layer, luminescence enhancement and dual-color emission are observed by transferring MoS2 and WS2 mono-layer 2D materials to 5 nm Al2O3/mono-layer MoS2 samples, respectively. The results demonstrate that with careful treatment of the interfaces of 2D crystals with other materials, different stacked structures can be established. ",

author = "Tsai, {Po Cheng} and Huang, {Hon Chin} and Huang, {Chun Wei} and Chang, {Shoou Jinn} and Lin, {Shih Yen}",

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doi = "10.1088/1361-6528/ab95b5",

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T1 - Luminescence enhancement and dual-color emission of stacked mono-layer 2D materials

AU - Tsai, Po Cheng

AU - Huang, Hon Chin

AU - Huang, Chun Wei

AU - Chang, Shoou Jinn

AU - Lin, Shih Yen

PY - 2020/9/4

Y1 - 2020/9/4

N2 - With additional precursor soaking, a thin Al2O3 dielectric layer can be grown on mono-layer MoS2 by using atomic layer deposition (ALD). Similar optical characteristics are observed before and after ALD growth for the mono-layer MoS2, which indicates that minor damage to the thin 2D material film is introduced during the growth procedure. With the thin separation layer, luminescence enhancement and dual-color emission are observed by transferring MoS2 and WS2 mono-layer 2D materials to 5 nm Al2O3/mono-layer MoS2 samples, respectively. The results demonstrate that with careful treatment of the interfaces of 2D crystals with other materials, different stacked structures can be established.

AB - With additional precursor soaking, a thin Al2O3 dielectric layer can be grown on mono-layer MoS2 by using atomic layer deposition (ALD). Similar optical characteristics are observed before and after ALD growth for the mono-layer MoS2, which indicates that minor damage to the thin 2D material film is introduced during the growth procedure. With the thin separation layer, luminescence enhancement and dual-color emission are observed by transferring MoS2 and WS2 mono-layer 2D materials to 5 nm Al2O3/mono-layer MoS2 samples, respectively. The results demonstrate that with careful treatment of the interfaces of 2D crystals with other materials, different stacked structures can be established.

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JO - Nanotechnology

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Luminescence enhancement and dual-color emission of stacked mono-layer 2D materials

Abstract

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