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Author Flöry, Nikolaus ♦ Jain, Achint ♦ Bharadwaj, Palash ♦ Parzefall, Markus ♦ Novotny, Lukas ♦ Taniguchi, Takashi ♦ Watanabe, Kenji
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ COMPARATIVE EVALUATIONS ♦ CURRENTS ♦ HETEROJUNCTIONS ♦ MOLYBDENUM SELENIDES ♦ MOLYBDENUM SULFIDES ♦ PHOTOVOLTAIC EFFECT ♦ QUANTUM EFFICIENCY ♦ WAVELENGTHS
Abstract We report on the photovoltaic effect in a WSe{sub 2}/MoSe{sub 2} heterojunction, demonstrating gate tunable current rectification with on/off ratios of over 10{sup 4}. Spatially resolved photocurrent maps show the photovoltaic effect to originate from the entire overlap region. Compared to WSe{sub 2}/MoS{sub 2} heterostructures, our devices perform better at long wavelengths and yield higher quantum efficiencies, in agreement with Shockley-Queisser theory.
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-09-21
Publisher Place United States
Journal Applied Physics Letters
Volume Number 107
Issue Number 12


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