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Interface-driven se...
Interface-driven seebeck effect in two-dimensional trilayer-stacked PtTe2/MoS2/MoS2 heterostructures via electron-electron interactions
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- Choi, Jae Won (author)
- Chung Ang Univ, Ctr Berry Curvature Based New Phenomena, Dept Phys, Seoul 06974, South Korea.
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- Lee, Won-Yong (author)
- Uppsala universitet,Fasta tillståndets elektronik
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- Kim, Si-Hoo (author)
- Chung Ang Univ, Ctr Berry Curvature Based New Phenomena, Dept Phys, Seoul 06974, South Korea.
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- Kang, Min-Sung (author)
- Chung Ang Univ, Ctr Berry Curvature Based New Phenomena, Dept Phys, Seoul 06974, South Korea.
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- Cho, Jung-Min (author)
- Chung Ang Univ, Ctr Berry Curvature Based New Phenomena, Dept Phys, Seoul 06974, South Korea.
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- Park, No-Won (author)
- Chung Ang Univ, Ctr Berry Curvature Based New Phenomena, Dept Phys, Seoul 06974, South Korea.
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- Kwon, Hyeok Jun (author)
- Chung Ang Univ, Ctr Berry Curvature Based New Phenomena, Dept Phys, Seoul 06974, South Korea.
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- Kim, Yun-Ho (author)
- Chung Ang Univ, Ctr Berry Curvature Based New Phenomena, Dept Phys, Seoul 06974, South Korea.
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- Kim, Gil-Sung (author)
- Chung Ang Univ, Ctr Berry Curvature Based New Phenomena, Dept Phys, Seoul 06974, South Korea.
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- Yoon, Young-Gui (author)
- Chung Ang Univ, Ctr Berry Curvature Based New Phenomena, Dept Phys, Seoul 06974, South Korea.
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- Lee, Sang-Kwon (author)
- Chung Ang Univ, Ctr Berry Curvature Based New Phenomena, Dept Phys, Seoul 06974, South Korea.
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Chung Ang Univ, Ctr Berry Curvature Based New Phenomena, Dept Phys, Seoul 06974, South Korea Fasta tillståndets elektronik (creator_code:org_t)
- Elsevier, 2023
- 2023
- English.
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In: Nano Energy. - : Elsevier. - 2211-2855 .- 2211-3282. ; 115
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Two-dimensional (2D) platinum telluride (PtTe2), which is one of the promising metallic transition metal dichalcogenides, has been proven as an essential candidate for electronic devices, magnetic devices, type-II Dirac fermions, topological superconductors, and other optoelectronic applications. However, the formation and thermal transport as important thermoelectric (TE) device applications have not been realized in large-area 2D PtTe2 films due to their semi-metallic properties. Here, we report an innovative approach to enhance the in-plane TE power factors by piling the metallic PtTe2 films on high-resistance (> 10 MO) intrinsic MoS2 films to form bilayer-PtTe2/MoS2 (5 nm/7 nm)//sapphire and trilayer-PtTe2/MoS2/MoS2 (5 nm/7 nm/7 nm)//sapphire heterostructures via wet-transfer stacking method. Such approaches can be achieved by utilizing 2D/2D heterostructure to increase the electron effective mass due to the strong electron-electron interaction at interface under temperature gradient along the samples and ultimately increase Seebeck coefficients via interface-driven Seebeck effect along with a metallic high-conductivity top-PtTe2 films. The trilayer-stacked PtTe2/MoS2/MoS2 heterostructures exhibit an extremely high Seebeck coefficient of 21.6 mu V/K and power factor of similar to 0.2 mW/m.K-2, which are 231 % and similar to 727 %, higher than those of the metallic 5-nm-thick single PtTe2 film on the sapphire substrate, respectively. Our new physics and observation can pave the way toward an effective strategy for understating 2D/2D TMDC heterostructure materials for high Fig.-of-merit TE energy harvesting devices.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Keyword
- Platinum ditelluride
- Interface-driven Seebeck effect
- Phonon drag
- Mott formula
- 2D heterostructure
- Effective mass
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Choi, Jae Won
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Lee, Won-Yong
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Kim, Si-Hoo
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Kang, Min-Sung
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Cho, Jung-Min
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Park, No-Won
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show more...
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Kwon, Hyeok Jun
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Kim, Yun-Ho
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Kim, Gil-Sung
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Yoon, Young-Gui
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Lee, Sang-Kwon
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Other Physics To ...
- Articles in the publication
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Nano Energy
- By the university
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Uppsala University