室温下过渡金属二硫族化合物单分子层激子激发态的反射光谱

IF 0.48 Q4 Physics and Astronomy

Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-04-24 DOI:10.1134/S1062873824709528

A. S. Brichkin, G. M. Golyshkov, A. V. Chernenko, V. E. Bisti

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引用次数: 0

摘要

通过光学反射光谱法研究了 MoSe2 和 WSe2 单层中 A- 和 B-激子的基态和激发态，研究温度范围很广，最高可达室温。结果表明，即使在室温下，光谱中也能观察到激发态。根据所选的异质结构参数，B-外激子线的强度可能与 A-外激子线相当。

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Excited States of Excitons in Monolayers of Transition Metal Dichalcogenides in Reflectance Spectra up to Room Temperature

The ground and excited states of A- and B-excitons in monolayers of MoSe₂ and WSe₂ were studied by optical reflectance spectroscopy over a wide range of temperatures up to room temperature. It was shown that excited states are observed in the spectrum even at room temperature. Depending on the selected parameters of the heterostructure, the B-exciton line may be comparable in intensity to the A-exciton line.

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来源期刊

Bulletin of the Russian Academy of Sciences: Physics Physics and Astronomy-Physics and Astronomy (all)

CiteScore

0.90

自引率

0.00%

发文量

251

期刊介绍： Bulletin of the Russian Academy of Sciences: Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It presents full-text articles (regular, letters to the editor, reviews) with the most recent results in miscellaneous fields of physics and astronomy: nuclear physics, cosmic rays, condensed matter physics, plasma physics, optics and photonics, nanotechnologies, solar and astrophysics, physical applications in material sciences, life sciences, etc. Bulletin of the Russian Academy of Sciences: Physics focuses on the most relevant multidisciplinary topics in natural sciences, both fundamental and applied. Manuscripts can be submitted in Russian and English languages and are subject to peer review. Accepted articles are usually combined in thematic issues on certain topics according to the journal editorial policy. Authors featured in the journal represent renowned scientific laboratories and institutes from different countries, including large international collaborations. There are globally recognized researchers among the authors: Nobel laureates and recipients of other awards, and members of national academies of sciences and international scientific societies.