Excitons in atomically thin 2D semiconductors and their applications
TL;DR: Xiao et al. as mentioned in this paper investigated the physical origin of the strong excitonic effect and unique optical selection rules in 2D semiconductors and examined control of these excitons by optical, electrical, as well as mechanical means.
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Abstract: Author(s): Xiao, J; Zhao, M; Wang, Y; Zhang, X | Abstract: The research on emerging layered two-dimensional (2D) semiconductors, such as molybdenum disulfide (MoS2), reveals unique optical properties generating significant interest. Experimentally, these materials were observed to host extremely strong light-matter interactions as a result of the enhanced excitonic effect in two dimensions. Thus, understanding and manipulating the excitons are crucial to unlocking the potential of 2D materials for future photonic and optoelectronic devices. In this review, we unravel the physical origin of the strong excitonic effect and unique optical selection rules in 2D semiconductors. In addition, control of these excitons by optical, electrical, as well as mechanical means is examined. Finally, the resultant devices such as excitonic light emitting diodes, lasers, optical modulators, and coupling in an optical cavity are overviewed, demonstrating how excitons can shape future 2D optoelectronics.
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Citations
Valleytronics in two-dimensional materials with line defect
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Recent progress in 2D hybrid heterostructures from transition metal dichalcogenides and organic layers: properties and applications in energy and optoelectronics fields.
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Quantum Plasmonics: Energy Transport Through Plasmonic Gap.
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Oxygen-Induced In Situ Manipulation of the Interlayer Coupling and Exciton Recombination in Bi2Se3/MoS2 2D Heterostructures.
Zachariah Hennighausen,Christopher Lane,Abdelkrim Benabbas,Kevin Mendez,Monika Eggenberger,Paul M. Champion,Jeremy T. Robinson,Arun Bansil,Swastik Kar +8 more
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