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Achieving near-perfect light absorption in atomically thin transition metal dichalcogenides through band nesting

Author

Listed:
  • Seungjun Lee

    (University of Minnesota)

  • Dongjea Seo

    (University of Minnesota)

  • Sang Hyun Park

    (University of Minnesota)

  • Nezhueytl Izquierdo

    (University of Minnesota)

  • Eng Hock Lee

    (University of Minnesota)

  • Rehan Younas

    (University of Notre Dame)

  • Guanyu Zhou

    (University of Notre Dame)

  • Milan Palei

    (University of Notre Dame)

  • Anthony J. Hoffman

    (University of Notre Dame)

  • Min Seok Jang

    (Korea Advanced Institute of Science and Technology)

  • Christopher L. Hinkle

    (University of Notre Dame)

  • Steven J. Koester

    (University of Minnesota)

  • Tony Low

    (University of Minnesota
    University of Minnesota)

Abstract

Near-perfect light absorbers (NPLAs), with absorbance, $${{{{{{{\mathcal{A}}}}}}}}$$ A , of at least 99%, have a wide range of applications ranging from energy and sensing devices to stealth technologies and secure communications. Previous work on NPLAs has mainly relied upon plasmonic structures or patterned metasurfaces, which require complex nanolithography, limiting their practical applications, particularly for large-area platforms. Here, we use the exceptional band nesting effect in TMDs, combined with a Salisbury screen geometry, to demonstrate NPLAs using only two or three uniform atomic layers of transition metal dichalcogenides (TMDs). The key innovation in our design, verified using theoretical calculations, is to stack monolayer TMDs in such a way as to minimize their interlayer coupling, thus preserving their strong band nesting properties. We experimentally demonstrate two feasible routes to controlling the interlayer coupling: twisted TMD bi-layers and TMD/buffer layer/TMD tri-layer heterostructures. Using these approaches, we demonstrate room-temperature values of $${{{{{{{\mathcal{A}}}}}}}}$$ A =95% at λ=2.8 eV with theoretically predicted values as high as 99%. Moreover, the chemical variety of TMDs allows us to design NPLAs covering the entire visible range, paving the way for efficient atomically-thin optoelectronics.

Suggested Citation

  • Seungjun Lee & Dongjea Seo & Sang Hyun Park & Nezhueytl Izquierdo & Eng Hock Lee & Rehan Younas & Guanyu Zhou & Milan Palei & Anthony J. Hoffman & Min Seok Jang & Christopher L. Hinkle & Steven J. Koe, 2023. "Achieving near-perfect light absorption in atomically thin transition metal dichalcogenides through band nesting," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
  • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-39450-0
    DOI: 10.1038/s41467-023-39450-0
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    References listed on IDEAS

    as
    1. Lei Chen & Tsampikos Kottos & Steven M. Anlage, 2020. "Perfect absorption in complex scattering systems with or without hidden symmetries," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
    2. In-Ho Lee & Mingze He & Xi Zhang & Yujie Luo & Song Liu & James H. Edgar & Ke Wang & Phaedon Avouris & Tony Low & Joshua D. Caldwell & Sang-Hyun Oh, 2020. "Image polaritons in boron nitride for extreme polariton confinement with low losses," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
    3. Yuan Huang & Yu-Hao Pan & Rong Yang & Li-Hong Bao & Lei Meng & Hai-Lan Luo & Yong-Qing Cai & Guo-Dong Liu & Wen-Juan Zhao & Zhang Zhou & Liang-Mei Wu & Zhi-Li Zhu & Ming Huang & Li-Wei Liu & Lei Liu &, 2020. "Universal mechanical exfoliation of large-area 2D crystals," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
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