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Large and Tunable Photothermoelectric Effect in Single-Layer MoS2

Open access
Buscema, Michele, Barkelid, Maria, Zwiller, Val, van der Zant, Herre S. J., Steele, Gary A., Castellanos-Gomez, Andres·2013·Nano Letters

Abstract

We study the photoresponse of single-layer MoS(2) field-effect transistors by scanning photocurrent microscopy. We find that, unlike in many other semiconductors, the photocurrent generation in single-layer MoS(2) is dominated by the photothermoelectric effect and not by the separation of photoexcited electron-hole pairs across the Schottky barriers at the MoS(2)/electrode interfaces. We observe a large value for the Seebeck coefficient for single-layer MoS(2) that by an external electric field can be tuned between -4 × 10(2) and -1 × 10(5) μV K(-1). This large and tunable Seebeck coefficient of the single-layer MoS(2) paves the way to new applications of this material such as on-chip thermopower generation and waste thermal energy harvesting.

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Metadata

Authors
Buscema, M., Barkelid, M., Zwiller, V., van der Zant, H. S. J., Steele, G. A., & Castellanos-Gomez, A.
Venue
Nano Letters
Published
2013-01-11
Volume
13
Issue
2
Pages
358-363
ISSN
  • 1530-6984 (ISSN-L)
  • 1530-6992
OpenAlex
W1764803000
Cited by
647
References
4
FWCI
30.79
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Large and Tunable Photothermoelectric Effect in Single-Layer MoS2. https://app.cochat.ai/papers/10.1021/nl303321g
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Buscema, M., Barkelid, M., Zwiller, V., van der Zant, H. S. J., Steele, G. A., & Castellanos-Gomez, A. (2013). Large and Tunable Photothermoelectric Effect in Single-Layer MoS2. Nano Letters. https://doi.org/10.1021/nl303321g

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